And you do that by measuring the relative activation of the left prefrontal cortex in the fMRI, versus the right prefrontal cortex.

And you know, of course, what'll happen if you do a pre frontal lobotomy.

One of the brain regions that changes most dramatically during adolescence is called prefrontal cortex.

And so we had this focal area called the medial prefrontal cortex that went way up in activity.

Not so long ago, physical treatments such as lobotomy and ECT could be inflicted on patients without their consent, and sometimes for punitive purposes.

Three brain areas the hippocampus, the prefrontal cortex, and the amygdala are particularly susceptible to pathological changes in size and function.

It goes to the nucleus accumbens, all the way up to the prefrontal cortex, orbital frontal cortex, where decisions are made, high level.

We had this broad patch of area called the lateral prefrontal cortex that went way down in activity, and I'll summarize that for you here.

In red is an area that active in the prefrontal cortex, the frontal lobe of the brain, and in blue is this area that was deactivated.

Similarly, there is evidence that the prefrontal cortex a key structure in emotional regulation as well as in decision making and working memory shrinks in major depression.

In very short, people who have more activity in the right side of the prefrontal cortex are more depressed, withdrawn. They don't describe a lot of positive affect.

So they decided I didn't know this, again, I found this out later that the only thing that could be done was for this 43 year old man to have a pre frontal lobotomy.

Repeated stress causes neurons in the hippocampus and the prefrontal cortex to shrink and lose connections with other nerve cells, while it also causes neurons in the amygdala to grow and form new connections.

Brain areas The explicit making of moral right and wrong judgments coincides with activation in the ventromedial prefrontal cortex (VMPC) while intuitive reactions to situations containing implicit moral issues activates the temporoparietal junction area.

It was impossible. So they decided there was no therapy, there was no treatment. But there was one treatment, which actually had been pioneered at the Hartford hospital in the early 1940s, and you can imagine what it was. It was pre frontal lobotomy.

Data obtained from animal experiments show that harmful physiological changes result from the inability of the brain and body to respond to repeated stress with adaptive modifications in structure and function. Three brain areas the hippocampus, the prefrontal cortex, and the amygdala are particularly susceptible to pathological changes in size and function.

Similarly, there is evidence that the prefrontal cortex a key structure in emotional regulation as well as in decision making and working memory shrinks in major depression. On the other hand, rather than atrophying, the amygdala, the seat of emotional memories, becomes hyperactive both in post traumatic stress disorder and depressive illness, and there is evidence from animal studies of a hypertrophy of nerve cells after repeated stress.