S: (n) psychoanalysis, analysis, depth psychology (a set of techniques for exploring underlying motives and a method of treating various mental disorders; based on the theories of Sigmund Freud) "his physician recommended psychoanalysis"
S: (n) instinct, inherent aptitude (inborn pattern of behavior often responsive to specific stimuli) "the spawning instinct in salmon"; "altruistic instincts in social animals"