PSY201H5 Lecture Notes - Twin Study, Amygdala, Parental Investment
Document Summary
Motivation refers to the moving force that energizes behaviour. Motives reflect: strength of motives: direction or goal of motives o, biological needs, psychosocial needs. Hypothalamic regulation of eating hypothalamus receives information regarding nutrient levels in body stimulation induces eating lesions of the lateral region produce starvation lateral region o o ventromedial region lesions induce overeating stimulation inhibits eating. Evolutionary analysis of human sexual behaviour parental investment patterns of sexual activity differences in mate preferences jealousy. Sexual orientation sexual orientation is the direction of attraction for a sexual partner: homosexuality: attraction for person of the same-sex twin studies document a biological basis for homosexuality hormonal responses differ between homosexual and heterosexual men. Affiliation motives the need to associate with others and maintain social bonds companionship, friendship, and love evolutionary bases safety, grooming, survival rejection, loss of intimate, loneliness anxiety, jealousy, and depression.
