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.

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

There is about 20 regions of the brain that have been modeled, simulated and tested the auditory cortex, regions of the visual cortex cerebellum, where we do our skill formation slices of the cerebral cortex, where we do our rational thinking.

So we've got motor cortex activation up there.

On the side here, this is temporal cortex.

You don't form images with your primary visual cortex.

You're flying through the cortex of my colleague's brain.

So from the retina you go onto visual cortex.

This big cortex, or whatever, we're pretty proud of ourselves.

Each individual's cortex is folded differently, very much like a fingerprint.

So you have the prefrontal cortex here, lighting up in red.

And primary visual cortex sees just simple geometry, just the simplest of shapes.

When people have these simple geometrical hallucinations, the primary visual cortex is activated.

There is the brain stem in between the cerebral cortex and the spinal cord.

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

Again, I'm putting your anterior cingulate cortex to the test here, causing you conflicting pattern detections.

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

I've gone and had an fMRI myself, to see how my visual cortex is taking over.

And you see that in humans, because of the development of the pre frontal cortex, it's called.

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

Why care if it is the brain stem or the cerebral cortex and how this is made?

And something else that happens is that those image making regions where you have the plotting of all these neural maps, can then provide signals to this ocean of purple that you see around, which is the association cortex, where you can make records of what went on in those islands of image making.

And then, as you grow up, the cortex develops, and inhibits these latent sexual urges towards your mother.

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

You cannot have a conscious mind if you don't have the interaction between cerebral cortex and brain stem.

Except that they're not as rich as ours, because they don't have a cerebral cortex like we do.

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

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Now, at this level, in what's called the inferotemporal cortex, there are only visual images, or figments or fragments.

By definition, two people picked at random can't have correlations in the distribution of gray matter in the cortex.

And you can see huge areas of cortex where there are massive correlations in the distribution of gray matter.

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An FM device in the cortex of the brain, the motor cortex, will send signals in real time to the motor points in the relevant muscles so that the person will be able to move their arm, let's say, in real time, if they've lost control of their arm.

It takes a central cortex, if you like, to be able to orchestrate all those elements at the same time.

And I strongly disagree with the idea that consciousness should be considered as the great product of the cerebral cortex.

And some of the research now is showing is that people on the spectrum actually think with primary visual cortex.

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