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14

Stress, Judgment, and Impulse Control

Lecture no. 14 from the course: Stress and Your Body

Stress, Judgment, and Impulse Control

Taught by Professor Robert Sapolsky | 30 min | Categories: The Great Courses Plus Online Health,Fitness & Nutrition Courses

In addition to affecting the hippocampus, stress can prove harmful to the frontal cortex as well—the seat of behavioral regulation. As in previous lectures, discover what happens to this essential part of the brain when it comes under attack from chronic stress.

Reviews

r********m
September 2, 2018
"The frontal cortex is the part of the brain least constrained by genes and most shaped by environment." The lecture was highly interesting so far but here we reach a point where Prof. Sapolsky completely derails from scientific consensus. Fact is that the frontal cortex is the part of the brain where a big part of human intelligence is located and as it is not fully mature until age 25 one could assume that at young age IQ depends more on your genes but at adult age the influence of environment is more important. This sounds so good in theory - the only problem is that scientific studies show that the EXACT OPPOSITE is the case. While at young age your IQ is largely influenced by shared (your family) and non-shared environment, this massively diminishes until adult age when finally no shared environmental influence is left at all and any non-shared environmental influence shrinks to a meager 15%. All the rest of human IQ at adult age seems to be determined by genes: A whopping 85%. Twin and adoption studies have shown this over and over again. Here's a link to a meta-study showing the results of the most well-replicated studies in human psychology, which includes IQ: http://www18.homepage.villanova.edu/diego.fernandezduque/Teaching/PhysiologicalPsychology/zCurrDir4200/CurrDirGeneticsTraits.pdf How is it possible that Prof. Sapolsky ignores these facts which are the best-replicated ones from the whole field of human psychology? Once again it seems that he can't get rid if this constant bias that socioeconomic status would be most important in human development when study after study shows that this is obviously not the case.

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t********m
March 12, 2016

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