PSYCH 1 Chapter Notes - Chapter 3-4: Operant Conditioning Chamber, Naturalistic Fallacy, Expectancy Theory
Document Summary
John paul scott and john fuller studied behavior of basenji hounds, cocker spaniels, and their mixed-breed offspring. Robert tyron wanted to demonstrate that a type of behavior frequently studied by psychologists could be strongly influenced by a variation in genes. Epigenetics examines gene-regulating activity that doesn"t involve changes to the dna code and that can persist through one or more generations . We inherit from our parents not only dna but also a variety of chemical markers that regulate genes, turning them on at certain times and off at others and determining how much protein they produce. Darwin"s insight: selective breeding occurs in nature. Artificial selection referred to in origin of species. Natural selection selective breeding in nature is dictated not by the needs and whims of humans but by the obstacles to reproduction that imposed by the natural environment.
