Interestingly, this approach also emphasizes the significance of the prefrontal cortex for the generation of the visualization.

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.

And one of the main reasons our brain got so big is because it got a new part, called the frontal lobe. And particularly, a part called the pre frontal cortex.

For one thing, those circuits almost always involved in human awareness include the lateral prefrontal cortex (due to the part it plays in short term memory and executive and control functions).

And the earhole isn't doing it to me at all.

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

Prefrontal cortex is an interesting brain area.

The side and the underside of the prefrontal show deep vertical grooves.

Really, consciousness is seated in the frontal lobe.

So at least as far as these aspects of our awareness depending on the prefrontal cortex are concerned among them the knowledge who we are and the ability to plan and to make decisions there is reason to assume that humans are distinct even from other primates.

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

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

We know that if you stimulate the temporal lobe, you can produce a feeling of out of body experiences, near death experiences, which you can do by just touching an electrode to the temporal lobe there.

So this is a model of the human brain, and this is prefrontal cortex, right at the front.

And in particular, one area of the temporal lobe is called the fusiform gyrus.

And you can see here, he's starting to get more energy into the frontal lobe.

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

When images are formed, a higher part of the visual cortex is involved in the temporal lobe.

Removal of just one lobe of the lung is specifically referred to as a lobectomy, and that of a segment of the lung as a wedge resection (or segmentectomy).

It's been shown to promote pre frontal cortex development where a lot of cognition is happening.

No student has ever complained of pains in the front lobe of the left side of the brain.

Faces are easy to see because we have an additional evolved facial recognition software in our temporal lobes.

Well, we know exactly where it happens, in the temporal lobe, right across, sort of above your ear there, in a little structure called the fusiform gyrus.

Its narrow leaves are three lobed (hence the specific name triloba ) and each of the lobes terminates in a sharp point.

Now what does a pre frontal cortex do for you that should justify the entire architectural overhaul of the human skull in the blink of evolutionary time?

The prefrontal possesses a flange, continuing from the lower part of the lacrimal bone to the lower part of the ascending process of the prefrontal, and connecting to a process on the side of the praemaxilla to form an elevation on the side of the crest base.

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.

So in my lab, we bring adolescents and adults into the lab to have a brain scan, we give them some kind of task that involves thinking about other people, their minds, their mental states, their emotions, and one of the findings that we've found several times now, as have other labs around the world, is part of the prefrontal cortex called medial prefrontal cortex, which is shown in blue on the slide, and it's right in the middle of prefrontal cortex in the midline of your head.

You have the middle area, where the temporal lobe might be, in here, and the posterior portion, where the maintenance functions are in the back.

It has also been suggested that stimulation of the temporal lobe by psychoactive ingredients of 'Magic Mushrooms' mimics religious experiences.

Well, it turns out the pre frontal cortex does lots of things, but one of the most important things it does is it is an experience simulator.

You'll see broad bacterial groups, and if you look at the shape of this pink lobe, it tells you something about the relative abundance of each group.

Then shalt thou kill the ram, and take of his blood, and put it upon the tip of the right ear of Aaron, and upon the tip of the right ear of his sons, and upon the thumb of their right hand, and upon the great toe of their right foot, and sprinkle the blood upon the altar round about.

And the temporal lobe hallucinations are all sense hallucinations, full of feeling, full of familiarity, located in space and time, coherent, dramatic.

Just very simply, the three parts of the brain the frontal lobe, where you focus your attention and concentration you have the temporal lobe, where you form images and keep memories and the posterior part of your brain, which contains the cerebellum, which controls motion and the brain stem, where you have your basic maintenance functions, like heartbeat and respiration.

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.

The reptilian part of our brain, which sits in the center of our brain, when it's threatened, it shuts down everything else, it shuts down the prefrontal cortex, the parts which learn, it shuts all of that down.

Models of working memory, relying on theories of network oscillations and persistent activity, have been built to capture some features of the prefrontal cortex in context related memory.

There is also a rare thing called temporal lobe epilepsy, and sometimes, if one has this, one may feel oneself transported back to a time and place in the past.

The arrows indicate peak gray matter volume in prefrontal cortex. You can see that that peak happens a couple of years later in boys relative to girls, and that's probably because boys go through puberty a couple of years later than girls on average, and then during adolescence, there's a significant decline in gray matter volume in prefrontal cortex.

And I will mention that I actually developed temporal lobe seizures a number of years ago, but it was during the time I was writing my last book, and some people say that book is quite different.

And yeah, sub atomic physics is deconstructive. You literally try to tear atoms apart to understand what's inside of them. But sculpture, from what I understand from great sculptors, is deconstructive, because you see a piece and you remove what doesn't need to be there.

So what happens when we pay attention is that the prefrontal cortex, the sort of executive part of our brains, sends a signal that makes a little part of our brain much more flexible, more plastic, better at learning, and shuts down activity in all the rest of our brains.

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.

He killed it and Moses took some of its blood, and put it on the tip of Aaron's right ear, and on the thumb of his right hand, and on the great toe of his right foot.