PSYCH 3F03 Lecture Notes - Lecture 3: Genetic Drift, Twin Study, Sexual Selection
18 Oct 2020
School
Department
Course
Professor
Document Summary
Learning objectives: difference between top down and bottom up strategies for generating hypothesis, top-down = theory driven, bottom-up = observation driven, 8 common methods for testing evolutionary hypotheses, comparing species, cross-cultural methods, physiological and brain imaging, genetic methods. Twin studies: comparing males and females jealousy, comparing individuals within a species, comparing the same individuals in different contexts, experimental methods, 4 major sources of collecting data for testing evolutionary hypotheses, major sources: Experimental observations: highly controlled, empirical but lack of natural setting, lab artifacts. Archaeological recotds: procides snapshots through time and infer evolutionary change and diversification, but soft tissues and behaviours not preserved and captures only a fraction of life. Hunter-gatherer societies: gain insight but lack of control. Self-report: not always reliable, other sources. Learning objectives: define evolution from a strictly biological perspective and list 5 mechanisms of evolution, natural selection, sexual selection, mutation, gene flow (migration, genetic drift, understand the ultimate source of all genetic variation, mutations.
