Theory and data concerning human and nonhuman motivation and emotion, drawing on perspectives from evolution, physiology, learning and culture. Three lectures; one term Prerequisite(s): One of LIFE SCI 2D03, PNB 2XC3 or PSYCH 2TT3; and one of ISCI 2A18, LIFE SCI 2C03, PNB 2XB3, PSYCH 2D03, 2F03, 2N03, 2NF3 Not open to students with credit or registration in PSYCH 3Y03 or 4Y03.