OHBM Neurosalience

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The Organization for Human Brain Mapping (OHBM) presents the Neurosalience podcast. In this series of interviews you’ll discover the latest developments in techniques for measuring brain structure and function. You’ll hear about how these tools can provide insight into the function of the brain from childhood to old age, and why these normal processes may be affected in neurological and psychiatric conditions. For more information on the speakers, and to read more communications from OHBM, see ohbmbrainmappingblog.com

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    • May 14, 2025 LATEST EPISODE
    • monthly NEW EPISODES
    • 1h 9m AVG DURATION
    • 103 EPISODES


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    Latest episodes from OHBM Neurosalience

    Neurosalience #S5E11 with Michael Milham - Advancing fMRI: Big data, reliability, deep phenotyping

    Play Episode Listen Later May 14, 2025 101:12


    Join host Peter Bandettini as he interviews Michael Milham, a pioneer in functional brain imaging and big data neuroscience. In this episode, Dr. Milham shares insights from his groundbreaking work on large-scale fMRI datasets, deep phenotyping, and the future of precision psychiatry.Topics include: - Challenges and opportunities in big data MRI - Individual variability in brain imaging - Resting-state fMRI and pipeline reliability - Integrating multimodal and real-world data - AI, machine learning, and biomarkers in psychiatryDr. Milham is Chief Science Officer at the Child Mind Institute and a leader behind major initiatives like the creation of large, open-access datasets (e.g., ADHD-200, Healthy Brain Network) to enable population-level studies. Tune in for a deep dive into the evolving landscape of neuroimaging research and its clinical potential.We hope you enjoy this episode!Episode ProducersAlfie WearnOmer Faruk Gulban

    Neurosalience #S5E10 with Simon Eickhoff - From Big Data to Biomarkers

    Play Episode Listen Later Mar 5, 2025 79:38


    In this episode of the OHBM Neurosalience Podcast, host Peter Bandettini sits down with Dr. Simon Eickhoff, a leading clinician-scientist in brain mapping. As a panelist at the 2024 OHBM meeting in Seoul, Dr. Eickhoff brought fascinating insights—this conversation picks up where that discussion left off.Dr. Eickhoff, a professor and director at Heinrich-Heine University Düsseldorf and Forschungszentrum Jülich, works at the crossroads of neuroanatomy, data science, and brain medicine. His research focuses on understanding individual differences in brain organization, aging, and psychiatric disorders using machine learning and large-scale neuroimaging analysis.Topics include: - The challenges of deriving biomarkers and using fMRI in clinical settings - His experience leading the journal Human Brain Mapping & the evolving publishing landscape - The role of AI in psychiatry and the future of precision medicineJoin us for a deep dive into the innovations and challenges shaping neuroscience and brain imaging today!Episode ProducersXuqian Michelle LiOmer Faruk Gulban

    Neurosalience #S5E9 with Sepideh Sadaghiani - Brain network configurations using EEG and fMRI

    Play Episode Listen Later Feb 19, 2025 84:35


    This episode features Dr. Sepideh Sadaghiani directing the CONNECTlab at Beckman Institute for Advanced Science & Technology, University of Illinois at Urbana-Champaign. Dr. Sadaghiani's lab explores large-scale brain networks, focusing on cognitive control, attention, and spontaneous neural activity. Using fMRI, EEG, and genetics, they uncover how brain connectivity shapes perception and behavior. Tune in for cutting-edge insights into the brain's dynamic communication.Episode ProducersOmer Faruk GulbanKarthik Sama

    Neurosalience #S5E8 with Mac Shine - Focusing on the nexus of subcortex-cortex interactions

    Play Episode Listen Later Feb 5, 2025 79:07


    This episode features Prof. Mac Shine from the University of Sydney. Mac is a systems neurobiologist interested in understanding how neurobiology supports awareness and flexible, parallel behavior. This engaging conversation between Peter and Mac offers takeaways for neuroscience from the study of other complex systems, such as weather patterns. It further explores how principles from fluid dynamics could inspire ways to rethink brain states and interpret fMRI data. The discussion also highlights the inherently interdisciplinary nature of neuroscience and emphasizes the crucial role of communication between its subfields as the field navigates these exciting times. For more details check out the episode! We hope you enjoy it! Episode Producers Alfie Wearn Karthik Sama

    Neurosalience #S5E7 with Seiji Ogawa - The discoverer of the BOLD contrast and fMRI

    Play Episode Listen Later Jan 22, 2025 69:11


    Join Peter Bandettini as he sits down with Seiji Ogawa, the visionary scientist behind the discovery of BOLD (blood oxygenation level-dependent) contrast fMRI. In this insightful conversation, Dr. Ogawa reflects on his groundbreaking work, the evolution of neuroimaging, and the challenges of translating fMRI into clinical practice. 1. Ogawa's Early Journey – From Stanford to Bell Labs, and the influences that shaped his career. 2. The Discovery of BOLD fMRI – How experiments with hemoglobin oxygenation laid the foundation for modern neuroimaging. 3. Impact on Neuroscience – Why fMRI became a cornerstone in understanding brain function. 4. Challenges in Clinical Translation – Variability and reliability in single-subject analyses. 5. Scientific Reflections – Ogawa's thoughts on curiosity, persistence, and the art of discovery. 6. Future Directions – Exploring brain interactions, neurovascular coupling, and innovations in imaging techniques. Notable Quotes: “If you can look into your brain without opening your skull… that's a great thing.” “The important thing is to know what is important.” “Many phenomena don't last long, but fMRI has proven to be enduringly significant.” Seiji Ogawa's contributions have left an indelible mark on neuroscience, inspiring researchers worldwide. Don't miss this fascinating exploration of his life, work, and ongoing curiosity about the mysteries of the human brain. Episode Producers Omer Faruk Gulban Nagashree Thovinakere

    Neurosalience #S5E6 with Vesa Kiviniemi - Pulsations Matter: Imaging Glymphatic System using MREG

    Play Episode Listen Later Jan 8, 2025 91:23


    Our guest today is Dr. Vesa Kiviniemi, a radiologist and researcher at Oulu University in Finland. Dr. Kiviniemi's recent focus has been on using an extremely high-speed MRI technique called MREG. This technique allows for the collection of an entire volume of data with a TR of just 100 milliseconds, using a stack-of-spirals approach. The reason he values this technique so much is that it enables him to examine various types of brain pulsations, including cardiac and respiratory pulsations, as well as what he refers to as glymphatic or CSF pulsations. In this episode, Dr. Kiviniemi explores how he has applied this technique in his research. He also discusses the history of our understanding of the glymphatic system, its potential functions, the many unknowns surrounding it, and the opportunities it presents for future research. Among other topics, he explains why using this high-speed technique might complement—or in some cases even be better than—slower approaches in certain ways. We hope you enjoy the conversation! Episode producers: Xuqian Michelle Li Omer Faruk Gulban

    Neurosalience #S5E5 with Peter Bandettini - The unique role of podcasts in communicating science

    Play Episode Listen Later Dec 25, 2024 35:07


    This episode is unique in the sense that it's actually a talk Peter gave during the OHBM 2024 meeting, specifically during the education session on communicating science. Peter wanted to share this talk because it focuses on the podcast and his own approach to creating it. He discusses his philosophy, heuristics, what he considers important about podcasting, and why he enjoys doing it. The talk emphasizes the value of conversation and explains how the podcast showcases the human side of scientific investigators and the stories behind their research. We hope you enjoy it! Episode producers: Omer Faruk Gulban Xuqian Michelle Li

    Neurosalience #S5E4 with Matthew Cobb - The idea of the brain, Francis Crick, and consciousness

    Play Episode Listen Later Dec 11, 2024 91:49


    In this episode, Peter Bandettini interviews Matthew Cobb (https://en.wikipedia.org/wiki/Matthew_Cobb), the author of the book “The idea of the brain: The Past and Future of Neuroscience”. Episode producers: Omer Faruk Gulban Alfie Wearn

    Neurosalience #S5E3 with Alan Evans - 40 years of brain imaging & creating infrastructure for all

    Play Episode Listen Later Nov 27, 2024 84:26


    Our guest is today is Dr. Alan Evans. He completed his Ph.D. (1979) and post-doctoral fellowship studying structure-function interaction of proteins at the Department of Biophysics at Leeds University in the U.K.  Subsequently he worked for five years as a PET physicist at Atomic Energy of Canada in Ottawa. In 1984, he joined the Department of Neurology and Neurosurgery at McGill University, where his research interests include multimodal brain imaging with PET and MRI, structural network modelling, and large scale neural informatics. For the past 40 years, he has been an institution at McGill University. He is the co-director of the Ludmer Centre and He is currently Co-Director of both the Ludmer Centre for Neuroinformatics and Mental Health and the Helmholtz International BigBrain Analytics Learning Laboratory (HIBBALL). He is Scientific Director of McGill's “Healthy Brains, Healthy Lives” (HBHL) , and Scientific Director of the Canadian Open Neuroscience Platform (CONP). The technical infrastructure underpinning CONP includes a multi-modal databasing system (LORIS)  and an international grid-processing portal (CBRAIN) both developed in Prof. Evan's MCIN lab. These platforms also support international brain networks, notably the Canada-China-Cuba Axis and the Global Brain Consortium, both co-chaired by Prof. Evans. Furthermore, he was named the Victor Dahdaleh Chair in Neurosciences in October of 2022. Episode producers Xugian Michelle Li Nagashree Thovinakere

    Neurosalience #S5E2 - Forging the meta-analysis movement in neuroimaging

    Play Episode Listen Later Nov 13, 2024 69:55


    Today our guest is Dr. Angie Laird, who trained as an imaging physicist, but has evolved into a cognitive neuroscientist and a true pioneer in meta-analysis of fMRI data. Dr. Laird has spent the bulk of her career developing novel data analysis algorithms, neuroscience informatics tools, and neuroimaging ontologies to yield analytic strategies for improving investigations into functional brain networks of healthy individuals as well as in populations with psychiatric and neurologic diseases and disorders. Early on she has seen the untapped value in meta-analysis, and has fostered growth in this fundamentally important area in functional brain imaging. Dr. Laird received her B.S. in Physics from Florida State University in 1998, and her Ph.D. in Medical Physics from the University of Wisconsin-Madison in 2002. She was a faculty member at the Research Imaging Institute of the University of Texas Health Science Center in San Antonio from 2004-2012, and currently she is Professor and Director for Imaging Science at Florida International University in Miami. Along with her development of meta-analysis tools and her own research, she plays a central role in the Adolescent Brain Cognitive Development (ABCD) consortium which is the largest long-term study of brain development and child health in the United States. This was a great conversation that spanned the early culture of fMRI research, early efforts towards data sharing, to the current practices today where data sharing and analyzing data across studies and from large shared datasets is becoming the norm. We also spent time talking about the origin, logistics, and impact of the ABCD project. We hope you enjoy it! Episode producers: Omer Faruk Gulban Xuqian Michelle Li

    Neurosalience #S5E1 - Highlights of the last season and more

    Play Episode Listen Later Oct 30, 2024 44:52


    In this special kickoff to the new season of Neurosalience, we turn the tables as Peter Bandettini, our host, joins us as the guest! We dive into highlights from last season and explore exciting plans for the episodes ahead. In addition, we had an insightful conversation on resting-state fMRI, computational modeling of the brain, and the importance of deep sampling in individuals. Plus, we discuss some news on the shifting landscape of scientific publishing.  We hope that you enjoy the new season of Neurosalience. Episode producers: Omer Faruk Gulban

    Neurosalience #S4E21 [Season Final] - OHBM 2024 Live Podcast

    Play Episode Listen Later Jul 3, 2024 94:16


    In this final episode of Neurosalience Season 4, Peter Bandettini hosts Janaina Mourao-Miranda, Simon Eickhoff, Sepideh Sadaghiani, Thomas Yeo, Michael Milham. The discussion was centered around:  Clinical relevance of fMRI today. Future directions of neuroimaging, promises to get excited about, and overpromises that need to be considered cautiously. How can fMRI help to understand the brain from a general point of view. This is the final episode of Neurosalience Season 4! See you in the next season :) Episode producers: Omer Faruk Gulban

    Neurosalience #S4E20 with Polimeni J., Huber L., Stikov N., Vizioli L., Yacoub E. - OHBM vs ISMRM

    Play Episode Listen Later Jun 14, 2024 73:47


    In this episode, Peter Bandettini hosts Jon Polimeni, Renzo Huber, Nikola Stikov, Luca Vizioli, and Essa Yacoub. They talk about the International Society for Magnetic Resonance in Medicine (ISMRM) and Organization for Human Brain Mapping (OHBM) conferences where they have attended both over many years. The conversation revolves around what each meeting offers, how they differ, how we might increase cross-talk, and why that would be a good thing. They also highlight some of the exciting work and developments gleaned from ISMRM that might not appear at OHBM. Enjoy!  This is the final episode of Neurosalience Season 4! See you in the next season :) Episode producers: Omer Faruk Gulban

    Neurosalience #S4E19 with Sofie Valk, Hae-Jeong Park, Kevin Sitek - OHBM 2024 Preview

    Play Episode Listen Later Jun 12, 2024 65:43


    Here Kevin Sitek (the Chair of the OHBM Communications Committee and a Research Assistant Professor in Communication Sciences and Disorders at Northwestern University), Sofie Valk (Research group leader and Scientific representative at Otto Hahn Group Cognitive Neurogenetics), and Hae-Jeong Park (Professor of Nuclear Medicine, Yonsei University College of Medicine, South Korea) discuss what to expect from OHBM 2024, including the education sessions, Oral Sessions, Symposia, Keynotes, and Talairach Lecture as well as discussion of the many informal round table sessions offered, the social events, the outreach, the SIGs, and the Communication Committee. They also discussed a bit about Korea and how the meeting came to be here this year. A great discussion with lots of information! See you there June 23 to June 27!  Episode producers: Omer Faruk Gulban Xuqian Michelle Li

    Neurosalience #S4E18 with Vince Calhoun - (Part 2/2) A principled approach to data mining

    Play Episode Listen Later Jun 5, 2024 69:42


    Dr. Vince Calhoun is the founding director of the tri-institutional center for translational research in Neuroimaging and Data Science (TReNDS) which is a consortium formed by Georgia State University, Georgia Tech, and Emory University. In this part 2 of Peter and Vince's discussion, they dive further into addressing the challenges that fMRI and other modalities face in finding useful information about psychiatric disorders that can be used clinically. They talk about what neuroimaging has taught us about schizophrenia, as well as the goals and challenges of establishing clinical relevance. They also talk a bit about the importance of a data driven approach to development of processing methods, as well as variability in fMRI data, and the challenges and opportunities that big data sets offer, the promise of data fusion, and multivariate modeling. Lastly, they also discuss his latest work in deep learning and what it offers, and spend quite a bit of time discussing data driven approaches vs model driven approaches. This discussion was an outstanding perspective builder. We hope that you enjoy it! Episode producers: Omer Faruk Gulban Xuqian Michelle Li

    OHBM2024 Keynote Interview Nicola Palomero-Gallagher

    Play Episode Listen Later May 30, 2024 33:48


    #A conversation with 2024 Keynote Speaker Nicola Palomero-Gallagher TODO: Link to blog post Interviewers: - Naomi L. Gaggi - Beatriz Padrela

    OHBM 2024 Keynote Interview Series: Luis Concha

    Play Episode Listen Later May 22, 2024 33:07


    A conversation with 2024 Keynote Lecture presenter Luis Concha https://www.ohbm-com.com/blog/a-conversation-with-keynote-speaker-luis-concha Interviewers: - Eduardo A. Garza-Villarreal - Diana Giraldo

    Neurosalience #S4E17 with Vince Calhoun - (Part 1/2) Fusing and squeezing data for information

    Play Episode Listen Later May 21, 2024 76:09


    Today our guest is Dr. Vince Calhoun, who's also a longtime colleague and friend of Peter Bandettini. Vince is the founding director of the tri-institutional center for translational research in Neuroimaging and Data Science (TReNDS) which is a consortium formed by Georgia State University, Georgia Tech, and Emory University. Vince Received his BS in electrical engineering from the University of Kansas, in 1991, two masters degrees in Biomedical engineering and information systems from Johns Hopkins in 1993, and 1996, and his Ph.D. in EE from the University of Maryland Baltimore County in 2002. After four years at Yale University, he became President of the Mind Research Network and Distinguished Professor at the University of New Mexico, before he moved to Atlanta for his present position several years ago. Vince's focus over the years could be summarized as using fMRI and other neuroimaging methods while developing processing methods to extract every possible useful bit of information. He's been prodigiously engaged and productive for over 20 years advancing multi-modal brain imaging, data fusion, and machine learning. His work has inspired new ways of looking at the data. In this discussion, Peter and Vince talk about work, professional journey from the east coast to New Mexico and now to Atlanta, as well as his successful battle with cancer in about 2010. We hope you enjoy this episode. Episode producers: Xuqian Michelle Li Johanna Bayer Omer Faruk Gulban

    OHBM 2024 Keynote Interview Series: Mac Shine

    Play Episode Listen Later May 16, 2024 36:48


    A conversation with 2024 Keynote Lecture presenter Mac Shine https://www.ohbm-com.com/blog/a-conversation-with-dr-mac-shine-ohbm-2024-keynote-interview-series-pt3 Interviewers: - Alfie Wearn - Xuqian Michelle Li

    OHBM 2024 Keynote Interview Series: Zarin Machanda

    Play Episode Listen Later May 9, 2024 36:29


    A conversation with 2024 Talairach Lecture presenter Zarin Machanda https://www.ohbm-com.com/blog/a-conversation-with-2024-talairach-lecture-presenter-zarin-machanda Interviewers: - Elisa Guma - Lavinia Uscatescu

    Neurosalience #S4E16 with Todd Woodward - Pulling out network subtleties with CPCA in Schizophrenia

    Play Episode Listen Later May 8, 2024 72:55


    Today we zoom in on Vancouver British Columbia to interview Dr. Todd Woodward, who is a professor in the department of psychiatry at the University of British Columbia and director of the UBC Brain Dynamics Laboratory. He's also the Director of the Cognitive Neuroscience of Schizophrenia Laboratory at BC Mental Health and Addictions Research Institute in Vancouver. Dr. Woodward received his Ph.D. in Experimental Neuropsychology at the University of Victoria in 1999, and performed his post-doc in the department of psychology at UBC. Since 2003 he's moved up from research scientist to professor - all at the University of British Columbia.  He's been working at the interface of processing methods and well-crafted experimental designs to probe the networks that may be disrupted in schizophrenia and other disorders. He and his team developed almost two decades ago a unique and elegant method known as constrained principal component analysis ( or CPCA), which he has been applying successfully with many different tasks. He's also deeply interested in novel non-pharmaceutical interventions that help augment schizophrenia treatment - having developed a program called metacognitive training (MCT), which may allow those with schizophrenia to be able to step back and begin to assess their own beliefs. This was such a wide ranging conversation which delved into the nuts and bolts of CPCA as well as the potential future role that neuroimaging can play in better understanding and ultimately treating schizophrenia. We hope you enjoy this episode. Episode producers: Omer Faruk Gulban Xuqian Michelle Li

    Neurosalience #S4E15 with Peter Fox - Brain coordinates, predicting BOLD, data sharing foundations

    Play Episode Listen Later Apr 24, 2024 74:13


    This episode's guest is arguably one of the most influential scientists in the human brain mapping community. Dr. Peter Fox, director of the Research Imaging Institute at the University of Texas Health, San Antonio. Early in his career he wrote the seminal paper that showed, using positron emission tomography , that brain-activation related increases in blood flow are accompanied by only small increases in oxidative metabolic -  resulting in the blood locally increasing in oxygenation. This paper set the foundation for understanding all of Blood Oxygen Level Dependent Contrast used in fMRI today. The true purpose of activation-related flow increases is still an open question. The story of the events and details surrounding this are in his review article from the 2012 NeuroImage special issue. It's titled, simply "The coupling controversy." Dr. Fox was also among the first to promote data sharing and pooling with his brainmap database, and early on, established stereotactic coordinates and spatial normalization as a way to put data into a shareable space. He started the annual meeting that pre-dated the Organization for Human Brain Mapping, and also founded one of the major brain mapping journals today, titled: Human Brain Mapping.   Peter had his formative undergraduate education at the extremely unique St. Johns college in Annapolis. He received his MD from Georgetown University, interned at Duke University, then carried out his residency and fellowship at Washington University where he worked closely with Dr. Mark Raichle, who was at the time pioneering PET scanning.   In this discussion, we delve into his contributions in a wide range of topics, from neurovascular coupling to the challenge of spatial normalization - particularly at high resolution - to subject variability, to clinical applications and the ongoing evolution of scientific publishing. Lots of history, content, and insight here. We hope you enjoy it! Notable paper: Fox PT., The Coupling Controversy, Neuroimage. 2012 Aug 15; 62(2): 594–601.  https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4019339/ Episode producers: Omer Faruk Gulban Stephania Assimopoulos

    Neurosalience #S4E14 with Rotem Botvinik-Nezer - 70 teams and a multiverse of analyses (NARPS paper)

    Play Episode Listen Later Apr 10, 2024 76:19


    In this episode, our guest is Rotem Botvinik-Nezer, a postdoc at Dartmouth University, working with Dr. Tor Wager in his  Cognitive and Affective Neuroscience Lab. In 2020, Dr. Botvinik-Nezer was first author of an influential paper published in Nature, titled Variability in the analysis of a single neuroimaging dataset by many teams, where the results were compared  from 70 independent teams analyzing a single data set having 9 hypotheses. This paper made it clear that there are many points of variability in data analysis pipelines, and provided further incentives for sharing data and code to grow consensus and replicability. While the popular press suggested that this paper was yet another hit to fMRI, we discuss how even papers that critique the results of this seminal paper ultimately converge in agreement with the overall message of systematic transparency. Dr. Botvinik-Nezer also has a strong interest in how our brains influence our perception of pain, having just published a recent paper showing evidence that regions associated with painful stimuli remain active even when subjects experience less pain while having the belief that a placebo is effective. In this conversation, Peter and Rotem delve into all these topics and more, but spend  the bulk of the discussion on the interplay between choices in analyses, such as determining a statistical threshold, and  variability in results. We also discuss incentives for users to share data and code and possible ways to create a more solid scaffolding for best practices.  Episode producers: Omer Faruk Gulban Xuqian Michelle Li

    Neurosalience #S4E13 with Daniele Marinazzo - Networks, causality, new ideas to advance the field

    Play Episode Listen Later Mar 27, 2024 86:44


    Dr. Daniele Marinazzo is a full professor in the department of data analysis at the University of Ghent, in Belgium. For over a decade he has been showing us what further information and insight we may extract from brain imaging data - from EEG and MEG to fMRI. He is technically a statistical physicist, but in reality, he is a network neuroscientist and data modeler who is constantly pushing the envelope. In this podcast he discusses some recent papers that go into how we might be able to improve the impact and relevance of new findings and models through careful benchmarking and well considered experimental design. He talks about his desire to move from correlation to causation in functional connectivity studies, he discusses granger causality, as well as moving from pairwise correlation to multivariate correlation. Furthermore, he delves into the limits of hemodynamics - limits that may be pushed back to a degree, as suggested by his compelling work showing that hemodynamic response function, which varies over space, may be estimated on a voxel-wise basis using resting state data alone. His work in estimating and mapping the Excitation/Inhibition ratio in the brain by using gamma frequency coherence as a signature was also discussed. This has potentially profound clinical and research applications. Lastly, his collaborative work with the European Human Brain Project towards the creation of the useful website, called ebrains (https://www.ebrains.eu), was discussed, which serves as a repository and tool for exploring shared data and code, as well as providing a user-friendly encapsulation of the project's collective effort. It is an all-around fun, eye-opening discussion featuring an outstanding scientist who is not only deep in the trenches of network modelling, but also a strong proponent of open science and constant engagement across disciplines. Episode producers: Omer Faruk Gulban Alfie Wearn Stephania Assimopoulos Referenced Papers: Mika Rubinov. Circular and unified analysis in network neuroscience. eLife. 2023; 12:e79559. Doi: 10.7554/eLife.79559   Reid AT, et al. Advancing functional connectivity research from association to causation. Nat Neurosci. 2019 Nov;22(11):1751-1760. Doi: 10.1038/s41593-019-0510-4.   Valdes-Sosa PA et al. Effective connectivity: Influence, causality and biophysical modelling. Neuroimage. 2009; 58(2): 339-361. Doi: 10.1016/j.neuroimage.2011.03.058.   Wu GR, et al. A blind deconvolution approach to recover effective connectivity brain networks from resting state fMRI data. Medical Image Analysis. 2013; 17(3):365-374. Doi: 10.1016/j.media.2013.01.003.

    Neurosalience #S4E12 with Gang Chen - Statistician on mission to reduce fMRI information waste

    Play Episode Listen Later Mar 14, 2024 73:58


    Today, we are excited to have Dr. Gang Chen on the podcast. Dr. Chen is the go-to statistics guru for the fMRI community at the NIH and a well-respected scientist worldwide. He is a staff scientist in the group that developed the AFNI software package. As an applied mathematician, Dr. Chen has written a series of insightful papers in the past seven years, bucking the status quo in fMRI processing - essentially saying that we are throwing away too much valuable information by thresholding our data, relying on overly simple and rigid models of the hemodynamic response, not mapping effect sizes, and using center of mass measures to describe clusters of activation. He backs it all up with a rigorous approach characterized by all good statisticians. He is a master in the art of casting a wide net to capture useful data without taking in artifact and noise, finding that sweet spot in data reduction to balance utility with sensitivity.  In this episode, we hear all about Dr. Chen's perspectives through these papers, which are so important yet not widely known or embraced by the field. We hope you enjoy it! Episode producers: Omer Faruk Gulban Xuqian Michelle Li

    Neurosalience #S4E11 with Jack Wells - Noninvasively imaging CSF flow and the glymphatic system

    Play Episode Listen Later Feb 28, 2024 75:28


    In this episode, it's our pleasure to host Jack Wells who is a Wellcome Trust Career Development Fellow at the University College London Center for Advanced Biomedical Engineering. Dr. Wells received his Ph.D. in MRI in the Department of Medical Physics and Bioengineering at  at University College London in 2010, and since he began his scientific career, he's been working at the interface of MRI methodology and neurophysiology - focusing on understanding the Cerebral Spinal Fluid dynamics and how they may relate to the Glymphatic system. He and his colleagues have been among the leaders in using MRI to image and characterize the glymphatic system as well as the  brain - cerebrospinal fluid barrier. The glymphatic system is hypothesized to be the paravascular mechanism by which CSF is washed through brain tissue - typically during sleep - clearing out metabolic waste. It is an incompletely understood yet potentially profoundly important system where its dysfunction  may be at the root of  disorders that include Alzheimer's disease. In this wonderful conversation we hear all about Jack's and others' work imaging and understanding the hydrodynamics and spatial organization of neurofluids in the brain. We hope you enjoy this conversation as much as we did!

    Neurosalience #S4E10 with Nathan Spreng - Cognitive networks and how they vary with age and disease

    Play Episode Listen Later Feb 14, 2024 109:28


    If you are interested in working with Nathan, he is currently recruiting for a postdoc! Send your CV to lbc.spreng@gmail.com Today our guest is Nathan Spreng. Dr. Spreng is the James McGill Professor of Neurology and Neurosurgery and Director of the Laboratory of Brain and Cognition at the Montreal Neurological Institute and Hospital at McGill University. As an undergraduate, Dr. Spreng was initially interested in pursuing a major in poetry until he took a psychology class that sparked his interest in the brain. He received Ph.D. in 2008 from the University of Toronto in Brian Levine's lab, and post docs with Cheryl Grady at the University of Toronto and Dan Schacter at Harvard. After about 5 years as an assistant professor at Cornell University, he moved to McGill University. Throughout his career Dr. Spreng has been using fMRI to reveal subtle yet repeatable large-scale brain networks as they relate attention, memory, cognitive control, and social cognition. He has also helped to elucidate the central role that the default network plays in self-generated thought, and in how it dynamically interacts with multiple systems in the brain. In this episode Peter and Nathan have a far reaching conversation about his work and what it implies, covering his study of age dependence of resting state hippocampal-linked network ensembles, how to move from mapping networks to modeling and understanding mechanisms, the many possible clinical implications of his work, current understanding of Alzheimer's disease, our mutual appreciation for multi-echo EPI, his data release paper of a large multi-echo EPI and structural MRI data set, and much more. Enjoy listening! Episode producers: Alfie Wearn Omer Faruk Gulban

    Neurosalience #S4E9 with Marsel Mesulam - 50+ years of brain research and importance of bubbles

    Play Episode Listen Later Jan 31, 2024 81:48


    It is our great pleasure and deep honor to host Dr. Marsel Mesulam who is a giant in the field of Neurology and one of founders of OHBM. Dr. Mesulam is Chief of Behavioral Neurology and the Ruth Dunbar Davee Professor of Neuroscience at Northwestern University Feinberg School of Medicine, and Professor of Behavioral Neurology at the Weinberg College of Arts and Sciences.Dr. Mesulam received his MD from Harvard Medical School in 1972, and in 1976 completed residencies at Boston City Hospital and Beth Israel Deaconess Medical Center in Boston. After a 1 year postdoc at Harvard University he began his tenure in Chicago at Northwestern. Dr. Mesulam's work has been both prodigious and impactful over the years, as his almost 1000 papers have been cited over 140 thousand times. He has written the seminal book, Principles of Behavioral and Cognitive Neurology, and has produced many landmark papers - a few of which we'll discuss in the podcast. One paper that we consider a masterpiece was published in Brain in 1998 and titled From Sensation to Cognition. This can be considered as a required reading for everyone in the field of brain mapping as it lays out so concisely and eloquently, a breathtaking perspective of the structure and functional organization of the human brain. Dr. Mesulam's research is extremely broad and diverse, having impacted such areas as neural networks and functional imaging, Dementia, Alzheimer's Disease, Primary Progressive Aphasia (PPA), Cholinergic Pathways, Acetylcholinesterase Studies, Cognitive Psychology, Neurology, and Neuropsychiatry. He also developed, early in his career, a neuronal marker, Tetramethyl benzidine, that profoundly impacted research in this area. In this inspiring conversation, Peter and Marsel discuss his early career and what was important for his success, delve into research culture and the value of opportunistic research, and the value of having the freedom and resources to try many things and rapidly change directions that follow interesting leads. They also discuss some of the exciting early days of Neuroimaging and OHBM. Lastly, we go into some of his current research on Primary Progressive Aphasia (PPA) and the study of temporal pole disease as a window to temporal pole functional significance. We hope that you enjoy this conversation. Episode producers:Alfie WearnOmer Faruk Gulban

    Neurosalience #S4E8 with Monica Rosenberg - It's a good idea to pay attention to Dr. Rosenberg

    Play Episode Listen Later Jan 17, 2024 65:05


    Dr. Rosenberg received her Ph.D. from the department of Psychology at Yale University, where she also carried out her post doc. In 2019, she started as an assistant professor in the Department of Psychology at the University of Chicago and is a member of the Chicago Neuroscience Institute.  She has been pioneering the use of connectome-based predictive modeling to capture individual differences in the ability to sustain attention. Attention is fundamental to just about everything that we experience and do and how we navigate the world. It varies over time and each person has different abilities to maintain it. Monica has developed and used extensively a task known as gradCPT, an easy at first but hard to sustain, continuous attention task that allows moment to moment assessment of sustained attention. She has found two networks that characterize high attention vs lower attention, and these have been powerful for characterizing individuals ability to sustain attention. It's also been useful for characterizing differences in such attention-related skills such as reading comprehension.  She's been delving further into both fMRI methodology and the nuances of attention ever since. In this conversation we talk about her career development, the great environment at Yale, the development of her exciting and impactful  fMRI-based human attention research. We hope you enjoy the conversation! Episode producers: Omer Faruk Gulban

    Neurosalience #S4E7 with Evan Gordon - Deep Sampling of fMRI Data: This is the way

    Play Episode Listen Later Jan 5, 2024 67:44


    Today, we are excited to have Dr. Evan Gordon on the podcast. Evan is an assistant professor in the Neuroimaging Labs Research Center, based in the Mallinckrodt Institute of Radiology at the Washington University School of Medicine in St. Louis. Since joining the group and joining forces with what is known as the "midnight scan club," he has gone on a scientific tear, publishing several highly influential papers that make use of the unique high-fidelity data sets, containing up to 11 hours of resting state or task-activated fMRI data for each subject. This powerful approach in fMRI is known as "deep sampling." His findings include insights into unique individual connectivity patterns,  the whole brain use of a novel parcellation approach using boundary maps, and most recently, discovery of effector-specific regions in motor cortex - a finding which is likely to replace in textbooks the classic Penfield maps of the homunculus.  This was a wonderful conversation where we explored the implementation, benefits, and potential of deep sampling of fMRI data! Evan is not only a creative and productive scientist, but a great conversationalist. We hope you enjoy it! Episode producers: Omer Faruk Gulban Alfie Wearn

    Neurosalience #S4E6 with Shella Keilholz - Ubiquitous quasi-periodic patterns in resting state fMRI

    Play Episode Listen Later Dec 20, 2023 69:36


    Today, our guest is Shella Keilholz. Dr. Keilholz received her Bachelor's in Physics from Missouri University of Science and Technology in 1997, and her PhD in Engineering Physics from the University of Virginia in 2004. She went on to a do a post-doc at NIH in Dr. Alan Koretsky's lab and in 2004 joined the department of Biomedical Engineering at Emory University as a faculty member. She is now a full professor at Emory University and also closely affiliated with Georgia Tech. Since around 2008 she has been uncovering new spatial and temporal patterns in resting state fMRI. She was the first to identify spatial propagation of wave-like behavior in the resting state time series and in 2011 coined the term quasi-periodic patterns (QPP) to describe whole brain networks that dominate much of the resting state signal. Recently, she and others have described three such patterns that account for most of the variance. Here we not only talk about her career but also delve into how these quasi-periodic patterns mesh with the current landscape of diverse features of resting state fMRI that continue to be found. She has shown that these patterns may have a central driver and may relate to such things as vasomotion, global signal, arousal state, and attention. In general, there is much more information from basic neurophysiology to cognition that remains to be derived from resting state fMRI, and Shella is among those leading the effort. This was an incredibly stimulating and fun discission. We hope you enjoy it! Episode producers:Omer Faruk Gulban Jeff Mentch

    S4E5: Reading minds with fMRI: The value of naturalistic stimuli in decoding semantic maps

    Play Episode Listen Later Dec 6, 2023 73:35


    Today, we're excited to have Alex Huth on the podcast. Alex is one of the more creative and insightful people in the field of brain imaging today as he has been forging new ground using naturalistic stimuli and voxelwise models to create intricate maps of semantic features across large swaths of the brain. His seminal 2016 paper in Nature brought his approach to prominence: https://www.nature.com/articles/nature17637 Here, Alex shares insights on the value of naturalistic stimuli on fMRI research and updates us on our current capabilities to decode brain activity. During this conversation Alex highlights an amazing tool to view semantic maps in the brain, which can be found here: https://gallantlab.org/viewer-huth-2016/ Alex received his bachelor's in engineering and applied science from Cal Tec, where he was also working as an undergraduate researcher in Christoff Koch's lab. He continued on, receiving his Ph.D. in 2013 from University of California Berkeley, Helen Wills Neuroscience Institute, under the guidance of Dr.'s Christof Koch and Jack Gallant. He went on to do his post doc in the Gallant lab and finally moved to the University of Austin in 2017, where he is an assistant professor in computer science and neuroscience: https://www.cs.utexas.edu/~huth/

    S04E04 Educating the neuroimaging world with Andy's Brain Book

    Play Episode Listen Later Nov 22, 2023 86:09


    Today, our guest is Dr. Andrew Jahn. Those of you learning MRI and fMRI analysis - which realistically, should be pretty much all of us - may already know about the amazing resources that he is prodigiously producing online. Starting with "Andy's Brain Blog" in 2012, expanding to videos (over 300 of them), and now his current project, "Andy's Brain Book", Dr. Jahn has been steadily creating a standard and a go-to resource for all of us to learn the nuts and bolts as well as concepts and nuances of processing our data. Dr. Jahn received his Bachelors in Psychology in 2008 from Carleton College, and his Ph.D. in Cognitive Neuroscience at Indiana University in 2015. He did a postdoc at the Haskins Laboratories at Yale University, and is now a professor at the University of Michigan, in Ann Arbor. There he has been given the freedom to expand his extremely valuable teaching resources. In this podcast we discuss how he got started in this, how perhaps failing to get a post-undergraduate position at the NIH started him down this path. We discuss the educational resources that he has been producing, and how he draws upon luminaries from Jaque Barzun to Dave Berry for inspiration. We also discuss the wider issue of education in neuroimaging - what can be taught and what cannot and have an open-ended conversation on the future of neuroimaging as well as some of his own planned future projects. This was a truly fun and enlightening discussion! We hope you enjoy it!  Episode producers: Alfie Wearn Omer Faruk Gulban Brain Art Artist: Laura Bundesen Title: Colors of hope

    S04E03: Paradigm shifts and big picture challenges in fMRI

    Play Episode Listen Later Nov 8, 2023 75:32


    In this episode our guest is Dr. Russ Poldrack who has been so influential to the fields of fMRI, cognitive neuroscience, and brain imaging in general for the past 30+ years. Russ is the Albert Ray Lang Professor of Psychology at Stanford University and Director of the Center for Open and Reproducible Science. Over the years, he has helped elevate how we do fMRI by creating resources and standards for sharing data and code. He is also working to advance the precision with which we think about task design and data interpretation through his Cognitive Atlas project, which is a knowledge base for cognitive neuroscience.   Russ Poldrack received his Bachelors in Psychology from Baylor University in 1989, and his Ph.D. from the University of Illinois, Urbana/Champaign in 1995. After a postdoc at Stanford, he started, in 1999, as an assistant professor at Harvard University and Mass General Hospital, in 2002 he moved to UCLA, then in 2009, he became the director of the imaging research center at the University of Texas at Austin. Finally, in 2014 he was recruited to Stanford, where he has been ever since.  In this discussion, Peter and Russ look back into some of the paradigm shifts in fMRI best practices that Russ helped foster, as well as some of the big picture challenges that we face when using brain imaging, modeling, and precision task design to derive new insights into brain organization and mechanisms of computation. Here, Russ also weighs in on the prospects of fMRI for biomarker derivation and the exciting potential for single subject deep imaging.  Peter mentioned to Russ that this was one of the fastest hours he has experienced in quite some time as it was an engrossing discussion. Enjoy listening!  Episode producers Jeff Mentch Omer Faruk Gulban Brain Art Artist: Mia Coutinho Title: Represent, Connect, Empower

    S04E02: OHBM 2023 Live Podcast - Mapping Individual Differences in the Human Brain

    Play Episode Listen Later Oct 26, 2023 78:51


    Organization for Human Brain Mapping (OHBM) 2023 live podcast session hosted by Alfie Wearn on site during the conference. In this episode, our guests Ana Luísa Pinho, Enrico Amico, Tim Laumann, and Emily Finn discuss mapping individual differences in the human brain. Enjoy listening! Episode producers: Alfie Wearn Omer Faruk Gulban Jeff Mentch

    S04E01: Highlights of Season 3, DIANA news, and future plans

    Play Episode Listen Later Oct 11, 2023 36:10


    A brand new season of Neurosalience! This year production of podcast will be in the safe hands of Ömer Faruk Gülban.   Here, Faruk turns the microphone around onto our trusty host, Peter Bandettini, to talk about all Peter's favorite moments of last season, some interesting updates about the ‘DIANA' paper (discussed in Season 3 Episode 4), and future plans for your favorite brain mapping podcast.   Enjoy Season 4!

    S3E20: Brain Connectivity and Disconnectivity with Michel Thiebaut de Schotten

    Play Episode Listen Later Jul 19, 2023 74:30


    In the final episode of Season 3 of Neurosalience, Peter chats with Michele Thiebaut de Shotten. Michele is a full professor at the French National Center for Scientific Research in Paris where he heads the Brain Connectivity and Behavior Lab and the Neurofunctional Imaging Group. On top of all this he is Editor in Chief of the journal Brain Structure and Function and, this year, has been the President of the Organization for Human Brain Mapping. Having over 15 years of experience in neuropsychology and brain connectivity neuroimaging, he has established himself as a leader in the field with work that spans everything including development, evolution, methodology, and theory. He has been a pioneer in probing brain connectivity and disconnectivity, starting in 2005 with a paper published in science showing that spatial neglect is a consequence of the disruption of communication between the frontal and the parietal lobes, and thus should be considered as a disconnection syndrome. Since then, he has been a highly prolific producer of creative, insightful, and high impact work exploring and characterizing structural and functional brain connectivity. Here we talk about the development of his career and his ideas as well as the importance of thinking of the brain from a connectivity perspective. We delve into some of his recent papers, including one that highlights differences in various MRI methods to measure myelin, and finally, we discuss how OHBM has evolved along with the role of the president of OHBM, as well as a few things that the meeting has in store for this year. Episode producers: Omer Faruk Gulban Alfie Wearn Please send any feedback, guest suggestions, or ideas to ohbm.comcom@gmail.com Thank you for listening to this season of Neurosalience! We'll be back in a few months time with Season 4!

    What's on at OHBM 2023: SIG and Committee Events

    Play Episode Listen Later Jul 17, 2023 33:19


    The 2023 OHBM Annual Meeting is fast approaching! In addition to the fantastic scientific content organized by the Program Committee, many other committees and special interest groups (SIGs) host their own programs. At last year's Annual Meeting in Glasgow, committees and SIGs hosted events on inclusivity, mentorship, art, and much more. In this podcast, Peter and Alfie highlight upcoming committee and SIG events at OHBM 2023. Further information on all these events, including exact times and places, can be found in this accompanying blog post: Other useful links: SIGs 1. BrainArt:  https://ohbm-brainart.github.io/   2. Open Science: https://ossig.netlify.app/   3. Student and Postdoc: https://www.ohbmtrainees.com/   4. Sustainability and Environmental Action: https://ohbm-environment.org/   5. Women in OHBM: https://www.ohbmbrainmappingblog.com/blog/announcing-the-launch-of-the-women-in-ohbm-special-interest-group recent blog post   COMMITTEES 1. Diversity and Inclusion: Kid's live review: https://ohbm-dic.github.io/kidsreview/2023/    2. Education:  https://www.humanbrainmapping.org/i4a/pages/index.cfm?pageid=4204   3. Communications (ComCom): https://www.ohbmbrainmappingblog.com/   Episode producers: Alfie Wearn Stephania Assimopoulos   Please send any feedback, guest suggestions, or ideas to ohbm.comcom@gmail.com

    S3E19: Relaunch of Aperture Neuro with Mallar Chakravarty

    Play Episode Listen Later Jul 12, 2023 61:37


    In this episode, Peter talks with Mallar Chakravarty about the imminent relaunch of the journal Aperture Neuro, which, a few years ago, was created and supported through OHBM.   Here we learn what happened with the first version of Aperture Neuro, what lessons were learned, and what the relaunched version of Aperture offers that is truly unique and valuable to the field. It is non-profit and open access with an APC of 800 dollars for members. It provides an avenue for many different kinds of papers, from typical original research to editorials, tutorials, conference summaries, book reviews, registered reports, and more. It will be heavily weighing the assessment of submitted papers based on their utility and transparency rather than just their novelty. In the future, Aperture Neuro aims to seamlessly support other objects such as code, data, notebooks, and videos, and is currently looking into mechanisms for handling these without compromising on quality or efficiency.   For more information about the journal, go to apertureneuro.org   Episode producers: Alfie Wearn Stephania Assimopoulos   Please send any feedback, guest suggestions, or ideas to ohbm.comcom@gmail.com

    OHBM 2023 Keynote Interview Series: Aviv Mezer

    Play Episode Listen Later Jul 5, 2023 33:41


    Dr. Aviv Mezer is an Associate Professor at the Edmond and Lily Safra Center for Brain Sciences (ELSC) at the Hebrew University of Jerusalem, Israel. Research in Dr. Mezer's lab is focused on mapping human brain structures during normal development and aging. In addition, it is focused on developing new approaches to characterize the structural changes associated with neurological disorders. Mezer's main research tool is in-vivo quantitative magnetic resonance imaging – qMRI. The Mezer lab is developing tools to biophysically explain the brain's MRI signals at different levels and resolutions: from molecular local sources through cellular organization to the mapping of networks across the entire brain. In this interview, we discuss the field of qMRI more broadly, touching upon the present and future interpretations ‘in vivo histology'. We also discuss Dr Mezer's approach to mentorship, as well as the skills that would benefit future researchers in this field. At OHBM 2023, Dr. Mezer will show us how combining multiple quantitative MRI measures can provide additional biological information about tissue composition and brain health. 

    OHBM 2023 Keynote Interview Series: Andreas Horn

    Play Episode Listen Later Jun 28, 2023 23:48


    Dr Horn is a medical scientist with training in neuroimaging, movement disorders, software development and both invasive and noninvasive brain stimulation and the group leader of the Network Stimulation Laboratory at Brigham & Women's Hospital, Massachusetts General Hospital Boston and Charité – University Medicine Berlin. His main interest and research focus lies in the development and  improvement of  methods to analyze brain stimulation sites to study network interactions of neuromodulation in the human brain. He is also the host of a podcast focusing on brain stimulation. In the interview with Dr Horn we explore how the impact of deep brain stimulation on the connectome can be studied, and how it can be used to improve patients lives.  “In contrast to many other neuroimaging domains, there is a more or less direct translation [..] to clinical practice”, says Dr Horn, and explains how for example networks that have been identified via DBS can later be targeted with noninvasive stimulation methods such as multifocal transcranial direct current stimulation (tDCS), for example to improve patients' conditions in movement disorders such as Parkinson's disease. Among many other things, Dr Horn also lets us in on an informally ongoing challenge at Harvard University whether structural or functional measures provide better predictions for DBS outcomes. He explains why his lab has gradually shifted away from using patient specific connectivity data to precise normative connectomes for studying which brain networks should optimally be modulated for maximal effects. In his  keynote at OHBM 2023, Dr Horn will give us a tour through his findings from years of work studying the effects of deep brain stimulation on the connectome across different disorders, ranging across neurological, neuropsychiatric and psychiatric diseases. He will illustrate how his findings can be transferred across disorders to inform one another and how they can be further used to inform neurocognitive effects and behaviors such as risk-taking and impulsivity.

    OHBM 2023 Keynote Interview Series: Emma Robinson

    Play Episode Listen Later Jun 21, 2023 24:59


    Dr. Emma Robinson is a Senior Lecturer (Assoc. Professor) at King's College London. Her development of the Multimodal Surface Matching (MSM) software for cortical surface registration has been instrumental to the development of the Human Connectome Project's multimodal parcellation of the human cortex. She is currently developing interpretable machine learning models to aid in the personalized prediction of disease progression. In this interview, Dr.Robinson describes the advantages of interpretable machine learning models, and the methodological challenges she faced during the development of this framework. Her approach to identifying disease-related changes in individual brain scans attempts to circumvent two of the limitations of traditional approaches: (1) the over-reliance on population averages, and (2) the opacity of “black-box” machine learning algorithms such as deep neural networks. In addition, Dr. Robinson shared that, following her extensive experience working on the Human Connectome Project, she realized that traditional image registration methods may not be sufficient for individualized predictions. Finally, Dr. Robinson shared how her relationship with her mentors shaped the trajectory of her current career. Her mentors not only guided her on the application of computational methods to neuroscience, but also encouraged her to develop her own methods. At OHBM 2023, Dr. Robinson will present how her work contributes to improved personalized predictions of cortical features in patient populations and how interpretable machine learning approaches can enhance precision.

    OHBM 2023 Keynote Interview Series: Emily Jacobs

    Play Episode Listen Later Jun 14, 2023 36:15


    Dr. Emily Jacobs is an Associate Professor of Psychological & Brain Sciences and the director of the Ann S. Bowers Women's Health Initiative at University of California, Santa Barbara. She received her PhD in Neuroscience at the University of California, Berkeley, and her BA in Neuroscience from Smith College. Prior to UCSB, she was an instructor at Harvard Medical School and at the Department of Medicine/Division of Women's Health at Brigham & Women's Hospital.  In this episode we discuss the pioneering work of Dr. Jacobs and her group in leveraging brain imaging, computation, and endocrine approaches to deepen our understanding of the influence of sex hormones on the central nervous system across spatial and temporal scales. She discusses her group's work using structural and functional neuroimaging methods to explore how the brain changes in response to endogenous hormonal changes, such as across the menstrual cycle, during menopause, or across pregnancy, as well as to exogenous hormones via oral hormonal contraceptives. Through the Ann S. Bowers Women's Health Initiative, Dr. Jacobs and her group are working towards creating a population-level brain imaging dataset to advance our understanding of women's brain health across the lifespan.   Dr. Jacobs also shared her journey into neuroscience research, her thoughts on how science can inform public policy, and talked about her groups' efforts to improve girls' representation in STEM by partnering with K-12 groups. This work was featured in the book STEMinists: The Lifework of 12 Women Scientists and Engineers.  At OHBM 2023, Dr. Jacobs will highlight the power of sex steroid hormones and the role that they play in shaping the brain over multiple timescales, drawing attention to some of the reasons why it has taken the field so long to focus on women's brain health. Comcom Organizers: Elisa Guma and Simon Steinkamp Produced by: Alfie Wearn

    OHBM 2023 Keynote Interview Series: Hongkui Zeng (Talairach Lecture)

    Play Episode Listen Later Jun 7, 2023 29:14


    Hongkui Zeng is Executive Vice President and Director of the Allen Institute for Brain Science. Her current research interests focus on understanding neuronal diversity and connectivity in the mouse brain-wide circuits and how different cell types work together to process and transform information. Through her leadership of multiple scientific teams at the Allen Institute, she has built several research programs using transcriptomic, connectomic and multimodal approaches. What unifies each of these programs is their shared goal to characterize and classify the wide variety of cell types that constitute the mammalian brain, laying the foundation for unraveling the cell type basis of brain function.  At OHBM 2023, Dr. Zeng will be presenting the Talairach Lecture entitled “Understanding Brain Cell Type Diversity.” Read on to learn about Dr. Zeng's research, career trajectory, and advice for early career scientists through her conversation with Xinhui Li and Kevin Sitek! An edited version of this interview is also available to watch on YouTube or to listen to on your favorite podcast service.

    S3E18: Pre-surgical fMRI uses and nuances

    Play Episode Listen Later May 31, 2023 85:30


    This week on #Neurosalience we have two guests, Dr. Natalie Voets and Dr. Andreas Bartsch, who have both been working together to advance the use of fMRI as a complementary yet promising and important technique for guiding neurosurgery. Along with clinical researchers around the world, they have been writing a massive white paper for the OHBM Best Practices Committee on the presurgical mapping of language function. They were also both co-authors on a clear and comprehensive 2022 paper published in the British Journal of Neurosurgery, titled: “Functional MRI applications for intra-axial brain tumors: uses and nuances in surgical practice”  Here we have an in-depth discussion of the state of the art of fMRI as it's used in the context of Neurosurgery. While fMRI is becoming a more commonly used tool for helping inform surgeons of brain tissue to be avoided during surgery, standards and best practices are still being worked out as the technique itself has so many stages including acquisition, brain activation paradigm design, processing, and finally interpretation. Natalie and Andreas are not only trained in neuroimaging, but very much in the weeds of daily surgical practice, so have extremely useful insights on all aspects of how fMRI can be and should be used for pre-surgical mapping. Dr. Bartsch is currently with Radiologie Bramber, and affiliated with the University of Heidelberg. He's an MD/PhD Radiologist and Neuroradiologist who studied at Charite Hospital at the University of Berlin, Tufts University in Boston, as well as at the University of Oxford.  Dr. Voets is an Associate Professor at the Nuffield Department of Clinical Neuroscience at the University of Oxford and a Special Advisor in Neuroimaging at Genesis Cancer Care. She is also an Intraoperative Awake Neurosurgery Technician at Oxford University Hospitals NHS Foundation Trust. Episode producers: Omer Faruk Gulban Jeff Mentch Brain Art Artist: Kai Kiwitz Title: Mapping the Human Connectome Description: Mapping the human connectome requires workflows that can deal with ever-increasing amounts of data. Here, the cellular architecture of the human cortex has been analyzed by a deep-learning based approach on a cell-body stained brain section. Visualizing what the approach has learned about the cellular architecture results in stunning images that illustrate the beauty of the human connectome.

    S3E17: Birth of a new journal - Imaging Neuroscience

    Play Episode Listen Later May 17, 2023 39:52


    This week on #Neurosalience, we discuss the recent editorial team resignations at NeuroImage over open access publishing charges and the start of the new journal Imaging Neuroscience. We have two of the senior editors of NeuroImage, Sonja Kotz from Mastricht University, and Shella Keilholz from Emory and Georgia Tech who give us a bit more insight into the factors leading up to the resignation, and what will be happening moving forward as the editors migrate from Elsevier to a non-profit company, MIT press. Sonja Kotz and Shella Keilholz have been with NeuroImage for many years, and in this discussion, we also touch on the current publishing landscape, how that is changing as new platforms and non-profit companies emerge to help keep costs low, and the benefits to authors, readers, and science as a whole. We also discuss the extremely unique and special culture of editors of NeuroImage - now Imaging Neuroscience, and how this has been and will continue to be so fundamental to the quality of the journal over the years. Lastly, we discuss the future of publishing - from what will be published beyond just pdfs to the challenges of review and curation as more and more papers are produced.  Episode producers: Omer Faruk Gulban Jeff Mentch Brain Art Artist: Sina Mansour Title: Dreaming Connectomes Description: Connectome images transformed using Deep dream AI Please send any feedback, guest suggestions, or ideas to ohbm.comcom@gmail.com

    S3E16: Hiromasa Takemura – From tract tracing to systems neuroscience

    Play Episode Listen Later May 3, 2023 60:50


    Today our guest is Hiromasa Takemura, the 2022 OHBM Early Career Investigator Award winner! He is the 26th recipient of this prestigious award, joining a group of investigators who made an impact early in their career, and have continued to do so. Dr Takemura's work has impacted the field mostly as it has traversed between tract tracing and basic systems neuroscience. In combining those two fields his impact has been enormous.   Dr Takemura is a professor in the Division of Sensory and Cognitive Brain Mapping in the Department of System Neuroscience and also a professor at the International Research for Collaboration Centre of the National Institutes of Natural Sciences and the National Institutes for Physiological Sciences in Okazaki Japan. He is the senior researcher at the Center for Information and Neural Networks (CiNet) and the Advanced ICT Research Institute at National institute of Information and Communications Technology (NICT), in Osaka, Japan.   In 2007 he received a B.A. in Liberal Arts from the University of Tokyo. Following this, in 2009 he received his M.A. in Multidisciplinary Studies also at the University of Tokyo. Finally, in 2012 he received his P.hD from the Department of Life Sciences at the University of Tokyo under his advisor Ikuya Murakami. From 2012-2015 he went to Stanford to work with Brian Wandell.    Episode producers: Omer Faruk Gulban Alfie Wearn   Brain Art Artist: Marc Ramos Title: Venus Brain   Please send any feedback, guest suggestions, or ideas to ohbm.comcom@gmail.com

    S3E15: Audrey Fan – Disseminating quantitative MRI for clinicians

    Play Episode Listen Later Apr 20, 2023 71:16


    Today our guest is Dr. Audrey Fan, Assistant Professor in the Departments of Neurology and Biomedical Engineering. She also serves as co-director of the Imaging Core for UC Davis Health's Alzheimer's Disease Center, an NIH-funded Alzheimer's research center. Dr. Fan is an imaging physicist and translational scientist. She develops novel magnetic resonance imaging (MRI) and positron emission tomography (PET) methods to study brain physiology in cerebrovascular disease and vascular dementia. She has translated new imaging technologies to patient studies in acute stroke, Moyamoya disease and intracranial stenosis. She received her Bachelor's degree from Stanford, then her Ph.D. from the department of Electrical Engineering and Computer Science at MIT. She returned to Stanford for her post-doctoral training, and, recently moved to UC Davis to start up her own lab. Dr. Fan is one of only a handful of researchers who are wielding MRI to non-invasively extract, with ever more effectiveness, useful quantitative information about brain physiology that is also clinically relevant. This includes quantitative blood flow, volume, and oxygenation as well as cerebral metabolic rate and oxygen extraction fraction with a goal to help guide treatment and therapy for stroke, vascular dementia, and other neurovascular disorders. This is such an important area to work in - as MRI is so sensitive to so many physiologic variables with such a broad parameter space. Even at about 40 years old, MRI has untapped potential and clinical efficacy - which Audrey is working to utilize. This conversation gives a great perspective of the unique challenges and opportunities of this exciting subfield of MRI. ~ Episode producers: Omer Faruk Gulban Alfie Wearn ~ Brain Art Artist: Omer Faruk Gulban Title: OHBM22 Brain Art ~ Please send any feedback, guest suggestions, or ideas to ohbm.comcom@gmail.com

    S3E14: Stephanie Forkel - Neurovariability

    Play Episode Listen Later Apr 5, 2023 66:54


    Today, our guest is Dr. Stephanie Forkel, a Donders Principal Investigator and Assistant Professor at Radboud University, studying the impact of neural variability on cognition in health and disease. In 2013, she received her PhD in neuroimaging at King's College in London where she helped establish an understanding that neurovariability is critical for prediction of recovery after stroke. Over her academic career she has continued to develop this line of work and has trained in many different places, including University of Salzburg, The National University of Ireland in Galway, Ludwig-Maximilians-Universität München, Klinikum Großhadern in Germany, University of Greenwich in the UK, UC Davis in the US, and CNRS in France. Dr. Forkel is a dynamic trailblazer, a thought leader, and a deeply engaged leader in both basic and clinical neuroimaging and she's taken on many roles in the Organization for Human Brain Mapping. We hope you enjoy this week's podcast.  Episode producers: Omer Faruk Gulban Jeff Mentch Brain Art Artist: Vesna Prchkovska Please send any feedback, guest suggestions, or ideas to ohbm.comcom@gmail.com

    S3E13: Todd Constable - Functional MRI of the Individual

    Play Episode Listen Later Mar 22, 2023 83:49


    Today, my guest is Dr. Todd Constable, a Professor in the Department of Radiology and Biomedical Imaging at Yale University. He is also director of MRI Research in the Department of Diagnostic Radiology in the Yale School of Medicine. Todd received his PhD in 1990 in Medical Physics from the University of Toronto, then moved to Yale for his post-doc and has been there ever since. While his training was in physics, he has clearly become a neuroscientist as well - having been working in fMRI since the early 90's. He still is active in both the physics development and neuroscience applications of MRI, working on low cost MRI strategies as well as working on more insightful ways to use fMRI data for clinical use. Specifically, he has mentored some outstanding students, including Emily Finn and Monica Rosenberg, who have helped pioneer the use of fMRI for predictive modeling of individual traits. Here we talk about, among other things, about the benefits, power, and potential clinical applications of predictive modeling in fMRI. I hope you enjoy our conversation.

    S3E12: Matthew Wall - Sex, Drugs, & fMRI

    Play Episode Listen Later Feb 22, 2023 79:19


    Today, our guest is Dr. Matthew Wall, head of MRI applications at Invicro, a London-based company that explores ways to advance personalized medicine. Matthew received his Ph.D. in 2003 in Cognitive and Brain Sciences at the University of Cambridge and until 2006, performed a post doc at Royal Holloway. He joined the company, Glaxo-Smith Kline in 2009, which then became Imanova in 2012 and then more recently, Invicro. Dr. Wall is a medical imaging specialist - working on both methods and applications - and mostly using fMRI. HIs initial training was in experimental psychology, but he's since studied vision, pain, fMRI-methodologies, resting-state fMRI, cognitive neuroscience, and psychopharmacology. Recently he's been involved in research on psychedelics, cannabis, sex hormones, depression, weight-loss, neurodegenerative disorders, and sexual function. His current role at Invicro allows him the opportunity to be involved in a number of clinical and non-clinical research projects, from commercial early Phase I clinical trials, to pure academic work. Today we have a broad ranging conversation about the challenges of fMRI in generating biomarkers and how the central challenge is shaping up to be more fully characterizing and understanding the many dimensions of human variability. We also get into a great discussion on psilocybin and his brain imaging work towards understanding how it alleviates depression. We then talk about cannabis, as well as his more recent work on understanding the neural correlates of various treatments to reduce hypoactive sexual desire disorder. Episode producers: Omer Faruk Gulban Alfie Wearn Brain Art Artist: Dan White Title: Neurotrip Author's Description: OHBM Brain Art Video Entry: https://o8t.wistia.com/medias/kulnjqe2ty Please send any feedback, guest suggestions, or ideas to ohbm.comcom@gmail.com

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