GENETICISM By N., Pam M.S. - May 11, 2013 the name of the concept that a person's behaviour is inborn, as in Sigmund Freud's theory of instincts and psychosexual development. See genetic determinism. GENETICISM: "Geneticism is in Sigmund Freud's theories." Related Psychology Terms FREUDIAN THEORY OF PERSONALITY PSYCHOSEXUAL DEVELOPMENT PHALLIC STAGE ENVIRONMENTAL DETERMINISM SYMPTOM SUBSTITUTION STRANGULATED AFFECT FREUD, ANNA WOLF MAN CENSOR PRIMAL-HORDE THEORY Cite this page: N., Pam M.S., "GENETICISM," in PsychologyDictionary.org, May 11, 2013, https://psychologydictionary.org/geneticism/ (accessed August 4, 2020).