A psychobiological system diagram below shown the control of appetite based on a its network of interactions forming part. It conseptualized three levels: the levels of psychological events and behavioral operations, the level of peripheral physiology and metabolic events, and the level of neurotransmitter and metabolic interactions in the brain. PVN: paraventricular nucleus NST: nucleus of the tractus solitarius CCK: cholesystokinin FFA: fre…



