click below
click below
Normal Size Small Size show me how
Lect. 5. Psyc. 307
Essential concepts
Term | Definition |
---|---|
Evolved psychological mechanisms (EPMs) | components of the mind that facilitate the production of behavior that helped solve an adaptive problem |
evolution is the only known process | to shape the nature of biological organisms |
evolutionary psychologists | study the psychological parts of human nature |
adaptations | effectively and economically solved a challenge that ultimately impacts DRS, are inherited through genes, are reliably expressed |
adaptations are reliably expressed | evident only in specific contexts, developmental periods, vary across individuals |
adaptations develop over a time period (environment of evolutionary adaptedness) | in response to particular selective pressures |
by-products | spandrels |
spandrels | accompany adaptations, but don't solve survival or reproduction problems |
noise | random effects |
EPMs | relate specifically to EEA problem, mental processing modules, specific, inputs via decision rules |
EPMs generate outputs | physiological events, inputs to other EPMs, behavior |
EPM outputs | must on average have produced better outcomes than alternatives (DRS) (“effective”) |
EPMs form relates to the context of human evolutionary history | and not necessarily of today, provide a non-arbitrary means for parceling the mind |
just because an EPM can be used for a range of problems (IQ, working memory) | doesn’t mean it wasn’t designed to solve a particular problem |
In most cases EPMs require environmental inputs to develop | callouses, male sexual anatomy, language |
all species have | a nature (eating, mating behavior)=EPMs |
psychological disorders maybe result of | interaction with non-EEA |
all psychological traits have | meaningful genetic contribution |
traits reliably expressed | but can vary to some degree across individuals due to environmental interacations |
human nature | adaptations over time to particular selective pressures |
EPMs are processing modules | of the mind |
EPMs determine human nature | rationale for dividing up the mind |
EPMs problem specific or | domain general (working memory, IQ, classical conditioning) |
support for problem specific EPMs | food conditioning best with smell, but fear conditioning with sight |
learning vs EPMs | false dichotomy: interaction ex. language needs input |
convergent validity | the degree to which two measures of constructs that theoretically should be related, are in fact related |
comparative assessments | compare similar species wrt a given trait (ex. sleep patterns) |
types of evidence | archaeological, historical, comparative, cross-cultural, naturalistic observation, surveys, human products, physiological, nervous system and genetic, experiments |
archaeological evidence | artifacts present clues to nature of EEA (tools, cave drawings) |
survey evidence | self-report (easy, but biased), other report (biased), question form |
cross cultural evidence | reliably expressed across cultures, explain anomalies |
naturalistic observation | only allowed in public places |
human products | incite into human thought (teams, fast food, internet) |
genetic evidence | how alleles show up in particular nervous system |
experiments | can't compare humans with and without selective pressure |
guidance from evolutionary theory | top-down process (survival, mating, raising offspring, kin interaction) |
mama bear syndrome | one's inner beast releases itself on its prey to show dominance, stemming from protection instinct. |
traditional societies | resemble EEA |
general psychology evidence | bottom up process (Why do humans have descent illusion?) |