to horrifying statistics 25% of the men on death row have a history have head trauma to the frontal cortex. bided time you are five years old that social economic status is a predictor of the level of stress hormones in your bloodstream and the less frontal maturation so few were foolish enough to pick the wrong family to be born into that is already going to impact metabolism of your frontal cortex by age five of your oldie three steps behind with frontal regulation behavior so in that realm the consequences are enormous and huge of the underappreciated. >> the question of the role of testosterone and the consequences. if it is related to a status of where does that act in the brain? in those that affect their aggression of the adults? would a pharmaceutical route to be for any type of cognitive training? i feel like that is something they haven't done. >>. >> which part of the brain has the most part of receptors for testosterone? the amygdala is ground zero does testosterone causes those amygdala neurons to five-year for the aggressive output? not at all. only if they were already firin

and if your frontal cortex is damaged, you know the difference between right and wrong and you say i'mreach right here because this has the better payoff and at the last second you go for the wrong one. >> trevor: were you grabbing the pussy there, what were you doing? i didn't know what that-- that seems like it, you know it's wrong and then you-- you grab for that. >> please, sir, i'm a professor. >> trevor: forgive me, grabbing the vagina. i apologize. america is very politically polarized at this point. and in the book you talk about how scientifically you've discovered or the research has shown that america is at a point where progressives and conservatives actually have brains that are wired differently. >> yeah, which either countses alike-- you think? or is very informative in that it's got nothing to do a lot of the time, with sort of the issues that one would think are going on in people's heads when they come up with political stansas, instead things like on the average, social conservatives are made more anxious by novel tee than are social progressives. they're made more a

and that was it would link specific behavior to the prefrontal cortex so the first case to tie the frontal lobe injury sunday sustain some kind of brain damage he may very well experience changes in your personality now lawyers parsing the you can use that as a criminal defense. this confirmed the idea of the frontal lobe to be answered behavior's tied to that area. and it can impair your judgment. and not to make a legal case. but very rarely requires the person cannot understand the consequences of the action they don't understand between right and wrong those who have psychotic problems or other mental health problems it is a tough case to prove so right now most of the time the brain defenses are used is in the death penalty case used in the hearings with the medications a person has already been convicted of a crime and it tried to get the life instead of death than they can interview the person's friends and family. they can talk about all sorts of things into be fairly successful to help their clients get life instead of death. is very popular now. so now you're all but expected to

linked specific behavior to a specific part of the brain, the prefrontal cortex, so it was the first case documented to tie frontal lobe injury to behavioral changes. from this spring this idea that if you sustain brain damage, particularly in the frontal lobe you may experience mild to profound changes in your personality and those changes, you can use them as a criminal defense. decades of research following the gauge incident confirm the ideas at the frontal lobe is the area we have executive function and certain behaviors tied to that area and if the frontal lobe is damaged it can impair your judgment but that is not enough to make a legal case. not enough for a legal defense with an insanity defense which is used in court is very rarely required that a person cannot understand or appreciate the nature or consequences of their actions as they don't understand the difference between right and wrong. the insanity defense is for people who have serious psychotic problems, mental illness, other mental health problems, very rare, tough case to prove. right now most of the time the brain defenses are used, when i sa