The Neuroscience of Intelligence w. Prof Richard Haier

Dr. Roi Yozevitch
Dr. Roi Yozevitch
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Published 2021-04-06
Dr. Richard Haier is Professor Emeritus in the Pediatric Neurology Division of the School of Medicine at University of California, Irvine. He is also the editor-in-chief of the journal Intelligence since 2016. In 1994, he was one of 52 signatories on "Mainstream Science on Intelligence," an editorial written by the American psychologist Linda Gottfredson and published in the Wall Street Journal, which summarized findings from intelligence research. His work on the parieto-frontal integration theory (P-FIT) with Rex Jung examines the neuroanatomy of intelligence based on neuro-imaging research. He’s also the author of the book “The Neuroscience of Intelligence” (2016).

0:00 Introduction
1:42 The Effect of PC on Intelligence Research
7:10 Gender Differences at the distributional Margins
13:00 polygenic screening
15:28 IQ and Savant Syndrome
21:27 Epigenetics
28:10 Preschool Education
31:57 Brain Efficiency Hypothesis
39:52 Bad Research
48:39 Cognitive Limits and Environmentalism
58:15 Reaction-Time Tests
1:05:30 Increasing IQ
1:10:09 The Finn Study
1:14:36 Productivity - Persistence

עורך ראשי: ישעיה רוזנמן

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All Comments (15)
  • @suaypordulu6056
    richard haier one of the pioneers ın ıq research. it was really enlighting interview. thank you both of you
  • @w1cked001
    Haier got me into the topic too. Absolute red pill
  • @barbaragibbons
    To another point, the question arises of imagining an early childhood experience that could have had the effect of rerouting the host’s area of expertise from electrical engineering to theoretical physics. His subjective answer addressed his realized cognitive limitation and concluded that no imagined early experience could have stretched that limitation. Research on the double action glutamate NMDA receptor, in the hippocampus and other brain areas involved in learning, has focused on critical periods of brain development. During these periods the subunit NR2B predominates almost exclusively, conferring physiological properties ideal for networking by association (learning). The ratio of NR2B to NR2A changes with that association/experience to a receptor with different physics, NR2A subunit supplied. Those changes to predominately NR2A and NR1 containing receptors change the properties of that synapse to resistant (memory) from plastic (malliable). Currently that is the edge of what we know. For the involvement of experiences during early development on realized IQ, this area of genetics and experience needs to have more research.
  • @Anonymous-rj2lk
    About epigenetics: In Dr Haier's book, IQ is defined by how fast you can learn, learning is basically neuroplastic change in the brain, so the genes that are responsible for the rate of neuroplasticity are the same genes that are responsible for IQ, hence, epigenetically changing these genes will bring a change to IQ. Now, to test that theory you dont have to check every IQ relates gene epigenetic change(as Dr Haier said, its extremely complicated), you just need to test which environmental factors change the rate of neuroplasticity in the brain, which that neuroplastic rate's source lies in these genes, and if the rate has changed, an epigenetic change must occur in the genes themselves, and if that is the case, you can safely conclude that epigenetic change can change IQ. I would love to read what you think about it
  • @barbaragibbons
    Reaction time tests results would be thought to correlate with speed of cognition. For example Einstein’s brain had an excess of glia which insulate the axon and increase overall speed of electrical conduction. However, the examples of reaction time to a light position should be closer correlated to gaming ability such as basketball or other fast reaction sport. More specifically, the time it takes to become proficient in that reaction for someone totally unfamiliar should present another measurable factor. There are too many variables involved such as the non cortical or upper pathway of vision to get a clear result. On the other-hand I myself subjectively experience answers to problems/questions before I have any time to seemingly think or process information. I have stunned myself over and over where the question required complex processing. The answer just immediately comes to mind. This type of processing speed is what needs to be tested. My IQ is 135, not extreme.
  • @doofy67
    סרטון ממש מעניין
  • @guylapidoth3273
    אחלה פרק רועי! תביא עוד כאלה And don't worry about your accent. It's just a matter of practice
  • @Motivational.Quotes10k
    Having good genetics clearly helps. But environment is equally important. Take for example the Pygmalion Effect, only one proof of the importance of environment.( which can have many subtle advantages , beyond economics. The psychological factors are important. Exercise increases blood flow to the brain , so is only logical that it is important. Nutrition- omega 3. A normal glucose level, etc. Take a look on the Kernel NIRS neuro-feedback device.
  • @psychedelictacos9118
    I know that there is no valid online I.Q. test, but after listening to Richard Haier I would be curious to find out, does anyone know of an I.Q. test online that gives a good estimate of I.Q.? That is free?
  • @user-vg5wj3sx4b
    למה אחרי 40 דקות התרגום לעברית נפסק?
  • @MauroRincon
    I think you interrupt too often to show that you know about the topic. Not a good style