In physiological terms, pleasure can be defined as activation of the limbic areas of the brain (Campbell, 1973). The nerve fibers serving pleasure seeking are inextricably interwoven with fibers that control physiological functions that are indispensable for individual and species survival, such as heart beating, breathing, blood pressure, and sexual excitation. [Source: Encyclopedia of Applied Developmental Science; Limbic System, Hedonic Escalation]
hedonic escalation
developmental processes
concepts