PSY 155 lecture2

PSY 155 lecture2 - Natural Selection: How the mind was...

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Natural Selection: Natural Selection: How the mind was designed How the mind was designed Evolution and Cognition (Psych 155)  Evolution and Cognition (Psych 155)  Professor Leda Cosmides       TA: Mike  Mrazek Office hours: Cosmides: Thursdays, 3:00-4:30 Psych East 3808,  Tuesdays 12:00-1:30 HSSB 1010 Mrazek: Mondays, 11 am – 1 pm, Bldg 429, room  102 ([email protected]) Course website:   http://mentor.lscf.ucsb.edu/course/fall/psyc155
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How the mind was designed How the mind was designed Outline Phylogenetic versus adaptationist  approaches Features of organisms Life = reproduction Evolution by means of natural selection Evolutionary approaches to psychology
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Remember. .. Remember. .. Genotype versus Phenotype 23 pairs of chromosomes ½ from mother, ½ from father Genes: factories that build and regulate  organisms. .. Can’t divide phenotype into parts coded for  by genes versus parts coded for by  environment All aspects of an organism are joint product  of genes and environment
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Who are you? Who are you? Kingdom: Animalia Not:  plants, fungi, protista, or  monera Phylum: Chordata Not:  mollusks, arthropods, or worms Subphylum: Vertebrata Class: Mammalia Not:  birds, fish, reptiles,  amphibians. .. Order: Primate Not:  canids, felids, etc. Family: Hominidae Includes:  modern humans, Homo  erectus, Australopithecnes Genus: Homo Species: sapiens Subspecies: sapiens Not:  neanderthalensis
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Phylogenetic versus adaptationist  Phylogenetic versus adaptationist  approaches approaches What different questions do they lead you to  ask?
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Phylogenetic approach Phylogenetic approach We are related to one  another, and to all  other species, by  virtue of common  descent Leads you to ask: How are we similar  to our closest  relatives (e.g.,  chimpanzees)
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Adaptationist approach Adaptationist approach Most useful for  psychologists Emphasizes natural  selection Process that  designs organisms Can make species  similar to one  another, or  different
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This note was uploaded on 04/07/2008 for the course PSYCH 155 taught by Professor Cosmides during the Spring '08 term at UCSB.

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PSY 155 lecture2 - Natural Selection: How the mind was...

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