PSYC18H3 Lecture Notes - Lecture 2: Frans De Waal, Emotional Contagion, Ultimatum Game
Document Summary
Precursors to darwin"s theory: jean-baptiste lamarck; naturalist (1744-1829) Thought adaptation was a phenotype instead of a genotype: charles lyell; geologist (1797-1875) Uniformitarianism: the earth has been shaped by forces that are still in action today: thomas malthus; economist (1766-1834) Population growth kept in check by various vices. Charles darwin (1809-1882: observations during expedition to galapagos islands, observed slight variations in finches" beaks, depending on island of origin, how do these changes occur over time? o. Environmental factors that favour certain genes: examples: Sexual selection: making it to sexual maturity survival, choosing and securing best possible mate for reproduction. While males have historically been able to show outward signs of competition, females have different strategies . Ovulatory shift hypothesis: female behaviour changes as a function of fertility. Sexy cads or good dads: study design: 2 (ovulating vs. not ovulating) x 2 (sexy cad vs. good dad), between-subjects: method: Women interact w/ 2 twin males via webcam (one at a time)
