PSYCHOLOGY OF SEX
PSYCHOLOGY OF SEX PSY 346K
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This 3 page Class Notes was uploaded by Marco Wolf on Monday September 7, 2015. The Class Notes belongs to PSY 346K at University of Texas at Austin taught by Staff in Fall. Since its upload, it has received 61 views. For similar materials see /class/181807/psy-346k-university-of-texas-at-austin in Psychlogy at University of Texas at Austin.
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Date Created: 09/07/15
Evolutionary Psychology Asymmetrical Pressure I have been noticing you around campus I nd you very attractive Would you go out with me tonight 7 Women 50 7 Men 50 I have been noticing you around campus I nd you very attractive Would you come to my apartment tonight 7 Women 6 7 Men 69 I have been noticing you around campus I nd you very attractive Would you go to bed with me tonight 7 Women 0 7 Men 75 Men Women Date 50 50 Apartment 69 6 Bed 75 0 Clarke amp Hat eld 1989 Sexual Signaling Costly require good health Honest reflect good health Concealed ovulation 7 competing pressures signaling fertility hiding lack of fertility Attractiveness Indicators of healthfertility 7 symmetry amp averageness of features both adults and infants demonstrate this preference Chinese and Japanese showed same preference women show a preference for odor of symmetrical bodies only when they are ovulating 7 youthful baby face 7 fluctuating asymmetry 2D4D cultural differences Paternal Uncertainty Gene shopping 7 Resemblance does the baby resemble the mother or the father mothers 7 rate infant as resembling the father mothers if father present 7 rate infant as resembling the father mothers family 7 rate infant as resembling the father fathers 7 equally likely to rate infant as resembling father or mother McLain et al 2000 Knieps 1997 Response bias or greater paternal resemblance 7 impartialjudges varies by study 7 rate infant as resembling the mother 7 equally likely to rate infant as resembling father or mother McLain et al 2000 Knieps 1997 It s a wise man who knows his own son How common is gene shopping Paternal testing laboratories 7 ranging from 1 in 7 to 1 in 10 children not sired by person identi ed as father Accurate Female Orgasm Sexual pleasure Domestic bliss Male ego Paternal con dence A Few Comments on Evolutionary Theory Adaptation vs random genetic drift Punctuated equilibria vs gradual evolutionadaptation 7 species do not evolve slowly 7 fossil record leaps not gradual change 7 fossil record gradual changes suggests random genetic drift Evolution of new species vs adaptation within species
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