2.3+biology+of+sex+and+gender

2.3+biology+of+sex+and+gender - The Biology of Sex Gender...

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1 The Biology of From the Previous Class . .. : Motivation: What is drive theory? Hunger: How do we know what to eat? How does metabolism change with weight change? Eating disorders: Today’s Questions : Sex as a form of motivation: What are the phases of sexual arousal, & what are the biological bases of this arousal? Sexual anomalies: Sexual orientation: How do nature & nurture determine sexual orientation?
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2 Sex as a Form of Motivation : Sexual response phases (discovered in a lab!) Plateau Orgasm arousal: ↑ respiration, ↑ muscle tension, penis is erect, vagina is lubricated, Sex as a Form of Motivation : Refractory phase: Men, after orgasm, can’t become aroused for certain period of time Coolidge effect: Men have quicker return to arousal with a new partner Frequency of insemination during 6 hrs after initial insemination Same partner New partner Sex as a Form of Motivation The role of testosterone : Induced in sexual motivation from … Castration of gonads (testes, ovaries) Drugs to block production of androgen testosterone Which comes first? in testosterone results from sexual activity Women more likely to initiate sex during ovulation when testosterone is high ovulation Day of menstrual cycle Testosterone level
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3 Sex as a Form of Motivation Brain structures : Activation during orgasm: Emotion areas:
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This note was uploaded on 09/30/2011 for the course PSY 4322 taught by Professor Natalieceballos during the Fall '11 term at Texas State.

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2.3+biology+of+sex+and+gender - The Biology of Sex Gender...

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