How does sending a probe through the brain during awake surgery cause a patient to have involuntary emotions?

I once saw a show about this guy who had surgery on his brain to treat his tourettes syndrome, and when they put a probe or something through his brain, he started to have severe depressive feelings and some other things. My real question is, doesn't this mean that the brain is more physical than psychological? But how would sending a probe affect a person's emotions without there being a psychological reason to feel sad?|||The way I understand it is that the probe stimulates a part of the brain, this releases neurotransmiters and affects others.





Between endorphins, serotonin, and miriads of others you would have countless possibilities.





I don't think the probe causes the emotion naturally.


In normal existence our moods can create these chemicals.


But you really raise a very important issue, is this really more physical?


Someday we may get an answer.





Very good question, now remain thinking!