travels through the pyramids, these are pyramidal pathways and
the emotional movements travel elsewhere.
And this is an approximation.
The reality is that we don't understand as much as we would like to about
how these extrapyramidal pathways are organized.
But what we do understand is that they are separate from these
volitional, intentional, deliberate pathways.
And therefore, an individual who has an inability to produce
volitional movements in response to a command has complete ability
to do the same movement for some other emotional reason.
When we have a facial expression, the facial expression that we have at
rest, as you look at this facial expression, you see that it's intact.
And we know that she has a problem in her corticobulbar tract,
in her motor cortex that controls the volitional control of her face.
And so what that, in fact, tells us is that the appearance of our face
at rest is an emotional act.
We produce, the face that we put on