PSYC 3P60 Lecture Notes - Lecture 2: Developmental Systems Theory, Sandra Scarr, Visual Acuity
19 Jan 2016
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What are the mechanisms that explain why someone would act that way. What % of the giraffe population had long necks: gene frequencies; that"s. Evolution: process of change in gene frequencies(how much of the population has this trait) over many generations proposed by darwin how evolution works. Natural selection ex. peacocks tail feathers (over generations, males attracted females with more colorful feathers; these males were probably more physically fit) White predominant, because of industrial revolution turned into dark predominant. By turned into , we mean that moths land on birch trees and white ones are camouflaged; the industrial revolution turned the birch trees dark which made the dark ones more camouflaged. Adaptive trait is not necessarily better depends on environment. Environments acts to select hereditary traits that are adaptive. Selected traits are adaptive for each stage of development. Thus the brain is designed so its easier for you to handle the world.
