bj casey podcasts

THE TEEN BRAIN EXPLAINED - Jennifer Pfeifer #86

Play Episode Listen Later May 14, 2026 71:34

Are our preconceptions about teen behaviour true? What can we learn from the psychology and neuroscience of teen development to help support them rather than blame them? Are mobile phones and social media responsible for the jump in youth mental health issues?In this episode we have the topic of the adolescent brain to get the up to date science on. So we're going to be testing our preconceptions about teenagers, and comparing the evidence base from research, to what we've come to believe through friends, family and heresay. So, we get into the development of the brain during puberty; just what behaviour hormones are and aren't responsible for; whether the late completion of the frontal cortex, responsible for self control and reasoning, affects their ability to make important decisions; the consequences of social connection circuits developing for their sense of belonging or exclusion; the alarming rise in mental health issues among young people over the past 15 years, and whether the research supports recent claims that digital devices and social media are largely responsible.Fortunately to navigate these choppy waters we have the co-director for Center for Translational Neuroscience at the University of Oregon and the co-director of the National Scientific Council on Adolescence, Jennifer Pfeiffer. She is the author of over 150 scientific papers on the neuroscience and Psychology of adolescence, puberty, social cognition and teen mental health and self regulation. She is on a mission to use science to change our narratives about the adolescent brain which she explains in her excellent new TED X talk, “The surprising science of adolescent brains”.https://www.youtube.com/watch?v=wr8VVJRcRSgWhat we discuss: 00:00 Intro06:11 Need to shift the narrative about teens.12:10 Puberty Vs Adolescence. 16:25 Preconceptions about teen development.17:00 Impulsive and risk taking (1st preconception).17:50 Frontal cortex not complete before 21/22 yo. (Executive reasoning)19:50 So called “Bad decisions” could be just from an adult point of view.21:40 Environmental factors deeply influence teen cognitive function.26:00 Interested only in friends, not in family relations, (2nd preconception).30:40 Teen brains mirror adults in the home.35:45 They love to break rules and push boundaries, (3rd preconception).36:40 Testing limits and failing integrates learning.39:50 Hormones make them emotionally vulnerable and erratic, (4th preconception).46:22 Trivialise fear of fitting in, missing out, and exclusion, (5th preconception).49:30 Fear of exclusion research.51:10 They're more likely to become addicted to persuasive technologies, (6th preconception).55:10 Metanalyses show a %15 increase risk from social media.56:25 %300 increased risk when there are parents with mental health problems.57:25 %150-200 increased risk from bullying.59:25 Factors in doubling of youth mental health issues.01:03:00 Recommendations for technology and young people.01:08:00 Advice to avoid blaming and shaming teens.References:Jennifer Pfeifer, TED X talk, “The surprising science of adolescent brains”.BJ Casey, Kristina Cause, ‘The Teenage Brain: Self Control'.Laurence Steinberg, ‘Cognitive and affective development in adolescence'Roy Baumeister, “Negativity Bias” CC Interview.Jonathan Haidt - “The Anxious Generation”. National Scientific Council on Adolescence report “What science tells us adolescents need online”.

university fear advice psychology oregon executives testing tedx teen recommendations hormones environmental factors cognitive adolescence impulsive preconceptions frontal pfeifer teen brain translational neuroscience laurence steinberg bj casey

Så fungerar en tonårshjärna – och därför är den optimal för ungdomsåren

Vetandets värld

Play Episode Listen Later Aug 13, 2025 19:34

Impulsiv och känslostyrd. Tonåringars hjärnor ses ofta som outvecklade vuxenhjärnor. Men de har unika förmågor som är optimala för just tonåringar. Lyssna på alla avsnitt i Sveriges Radio Play. Programmet sändes första gången 25/2 2025. Vi pratar ofta om unga människors hjärnor i negativa termer, som ofärdiga varianter av vuxenhjärnor. Men det handlar om helt normal utveckling, och deras hjärnor är ibland bättre anpassade för just en ung människas liv, än vad vuxnas hjärnor är.Det säger BJ Casey, professor i neurovetenskap vid Columbia University i New York, som forskat om unga hjärnor i decennier.I en tid när vi pratar mycket om bristerna och omognaden i unga människors hjärnor vill hon lyfta fram att det också finns en hel del positivt.Reporter: Lena Nordlundlena.nordlund@sverigesradio.seProducent: Lars Broströmlars.brostrom@sverigesradio.se

new york men columbia university optimal lyssna programmet fungerar sveriges radio play ungdoms vetenskapsradion bj casey

Så fungerar en tonårshjärna – och därför är den optimal för ungdomsåren

Vetandets värld

Play Episode Listen Later Feb 25, 2025 19:34

Impulsiv och känslostyrd. Tonåringars hjärnor ses ofta som outvecklade vuxenhjärnor. Men de har unika förmågor som är optimala för just tonåringar. Lyssna på alla avsnitt i Sveriges Radio Play. Vi pratar ofta om unga människors hjärnor i negativa termer, som ofärdiga varianter av vuxenhjärnor. Men det handlar om helt normal utveckling, och deras hjärnor är ibland bättre anpassade för just en ung människas liv, än vad vuxnas hjärnor är.Det säger BJ Casey, professor i neurovetenskap vid Columbia University i New York, som forskat om unga hjärnor i decennier.I en tid när vi pratar mycket om bristerna och omognaden i unga människors hjärnor vill hon lyfta fram att det också finns en hel del positivt. Reporter: Lena Nordlundlena.nordlund@sverigesradio.seProducent: Lars Broströmlars.brostrom@sverigesradio.se

new york men columbia university optimal lyssna fungerar sveriges radio play ungdoms vetenskapsradion bj casey