There are two brain pathways associated with facial expression; the first is voluntary expression.
Other drugs, he notes, such as cocaine and amphetamines are involved in another brain pathway called the dopaminergic system.
If the brain pathway isn't there or is greatly reduced, you would expect that process to be deficient.
In fact, it turns out that their very brain pathways are shaped by the kinds of responses that they receive from other people.
The study was important, he said, because it found similar results in two species and showed that Ecstasy could damage two different brain pathways.
Understanding the vast brain pathways that music affects is beyond what we can do right now, given our present technology.
There's a biologic connection at work: Pain and emotional sensations share the same brain pathway.
We're gathering fundamental knowledge and showing there is a brain pathway that allows you to generate your own emotions.
Our findings indicate that brain pathways for a complex behavior can evolve in very similar ways, multiple times.
Did you know that nicotine acts on some of the same brain pathways as cocaine?