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Psy Evol Ch2 P.35-51
vocab
Term | Definition |
---|---|
Karl Grammar (1996) research | single bar men touch more when women fertile: female clues (dress) vs male adaptions sense ovulation |
Gangestad (2004) research | ovulating women initiate more sexual encounters |
evolutionary psychology | synthesis of evolutionary biology and psychology |
creationism | intelligent design: not falsifiable, not predictive or explanitory |
seeding theory | life arrived on earth via a meteorite or ET visit: no evidence, no new research, pushes causal chain back in time |
evolution by natural selection | explains known facts, yields predictions, guides inquiry |
products of evolution | adaptations, by-products (concomitants), random effects (noise) |
by products | "carried along" with characteristics that have functional design (e.g. belly button) |
noise | chance mutations, sudden environmental changes, chance developmental effects (shape of one's belly button) |
most adaptations | species typical (walking, breasts) |
selection | fashions adaptations by filtering out features not contributing to propagation |
function of adaptation | how it contributes to survival or reproduction |
adaptation evololutions | helpful mutations passed down and spread in entire species |
environment of evolutionary adaptedness (EEA) | statistical composite of selection pressures for adaptations's period of evolution |
EEA | selection forces or adaptive problems that shaped it |
adaptation's period of evolution | time span during which it was constructed until it characterized universal species design |
adaptations are | the primary product of evolution by selection |
core of all animal natures | a large collection of adaptations (eyes, ears, taste buds, bones ...) |
general evolutionary theory | evolution by natural selection |
middle-level evolutionary theories | parasite-host coevolution, parental investment and sexual selection, reciprocal altruism |
specific evolutionary hypotheses | females select mates based on their ability and willingness to contribute resources |
specific predictions derived from hypotheses | women prefer high status men that invest in them; they divorce non-investors |
only evolutionary theory | can create complex functional design |
humans spent 99% of their evolutionary history as | hunter-gatherers |
evaluation of evolution | rests on the cumulative weight of the evidence |
top-down (theory-driven) approach for generating and testing evolutionary hypotheses | start at top with general evolutionary theory and derive hypotheses |
bottom-up (observation-driven) approach for generating and testing evolutionary hypotheses | develop hypothesis about adaptive function based on a known observation |
low WHR women | get pregnant sooner, show lower incidence of heart disease and endocrinological problems - higher fertility |
most attractive WHR | .70 |
value of an evolutionary hypothesis | depends partly on its precision |
all species | have a nature |
psychological theories require | core fundamental premises about human nature; explicitly or implicitly evolutionary |
evolutionary psychology focuses | on the analysis of the human mind as a collection of evolved mechanisms |
evolved psychological mechanism | solved a specific problem of survival or reproduction recurrently over evolutionary history; takes in narrow slice of information; |
input of evolved psychological mechanism tells | particular adaptive problem faced: snake-bite damage; rancid smell-food selection |
input of evolved psychological mechanism transformed | through decision rules to output: if angry rival stronger then avoid fight |
output of evolved psychological mechanism can be | physiological activity, information to other psychological mechanisms, or manifest behavior: snake-aroused |
output of evolved psychological mechanism is directed toward | the solution of a specific adaptive problem: jealous; output on average leads to a successful solution in evolutionary past |