PSY 320 Lecture Notes - Lecture 3: Phylogenetics, Cortisol, Psych
Document Summary
Evolution and genetics review: look at assignment (anatomy one) on canvas before monday, first exam is next wednesday, first journal of neuroscience article = next week. Phylogenetics: mapping out the evolution of different phyla (groups of species) Ex: evolution of the human brain: mouse, cat, chimp, rat, dolphin etc. More cortical folding= more intelligence: evolution of the human brain. Baboons lower on the hierarchal rung are more likely to get sick. Ex: chimps have friends who have personalities that are similar to themselves. Shows that friend preference is a characteristics developed in common ancestor six million years ago: genetic selection. Understanding that you could selectively breed for things. Original population was variable but was able to select for how well rats could perform in a maze. (that was his operational definition of intelligence. ) Bred smarter ones together and dull ones together over several generations to result in two distinct populations.
