To what extent can the central nervous system be trained to alter the autonomic response?, assignment help

ANSWER MUST BE 250+ WORDS PLUS REFERENCE

The peripheral and central nervous system pathways interact and integrate their functions to create a response to a stimulus. To what extent can the central nervous system be trained to alter the autonomic response? Is further alteration of the autonomic response improbable or undesirable? Why do you believe this is the limit?