What event affecting the brain can cause bizarre behavioral outcomes, such as the extreme example of one hand refusing to cooperate with the other, as in the case of the man whose left hand turned off the television and hit his family members?

I believe the answer is: Split brain surgery

Split brain surgery refers to a type of surgery that being done by severing the corpus callosum, the part of brain the separates the right and left hemisphere. This surgery could cause incoordination between our right and left body as one of the side effects.

answer; migrate from a region;