PSYCH 112 Lecture 4: pysch lect 4
Document Summary
Note: when answering questions: answer the questions asked, be concise, using your own words, depth, not breadth (how well you understand not how much) Introduces a stream of heredity: a change to the mechanism in heredity, single celled organisms to multi celled organisms. Biological adaptations: bipedalism, the hand, generalized dentition. Brain adaptations: larger brains, absolute size, relative size, early birthing, lateralization, more lateralization among humans than chimps, brain metabolism. 10x the energy than a chimp: greater gene expression, more genes are being expressed in humans than chimps. Psychological adaptations: humans are faster and more flexible at adapting than other species, mhc discordance. Idea that we were driving them to extinction because we were eating all food. Indicating that our ancestors ate a highly varied diet. Brain adaptations: seen in hominin line, not chimp line, organ inside your skull, not your mind, larger brain size, a lot of differentiation in brain size.
