psy_101_ch3%264

psy_101_ch3%264 - Phineas Gage 1848 Vermont. Twins studies,...

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Phineas Gage 1848 Vermont. Twins studies, identicals separated at birth. Humans are 99.9% related Each person is an evolutionary success story. Evolution- is the change over time in frequency of certain genes Natural selection is a product of adaptation Some old adaptations become a liability (deer-cockroaches) Social evolution we are Stone Age Alzheimer’s disease should be weeded out Inborn biological tendencies Language Human faces Amount judgments Social Altruistic – why be nice/humans live in consistent groups Fallacy of logic Behavior X exists because environment Y We know Y exists because X exists Two fallacies of evolution Evolution has no foresight Just because it’s inborn does not make it correct Data from evolution is found in genes/DNA Gregory Mendel Austrian monk peapods 1860 Dominant recessive genes Phenotype versus genotype Cell contains nucleus 46 chromosomes 23 pairs Behavioral genetics study how heredity and environment interact Heritability coefficient Gene manipulation to reach causal conclusions Neuron 100 billion Soma dendrites axons Trillions of connections Varied in sizes and shapes and number of connections Glial cells 10 to 1 ratio Two important neuronal features Nerve impulse and chemical release Rest, action potential, restoration Neurons sit in salty fluid
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psy_101_ch3%264 - Phineas Gage 1848 Vermont. Twins studies,...

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