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Myers EXPLORING PSYCHOLOGY (6th Edition in Modules). Module 26 Sexual Motivation James A. McCubbin , PhD Clemson University Linda Zimmerman Oakton Community College Worth Publishers. Sexual Knowledge Quiz. http://www.healthunit.com/article.aspx?ID=15160. Sexual Motivation.
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Myers EXPLORING PSYCHOLOGY (6th Edition in Modules) Module 26 Sexual Motivation James A. McCubbin, PhD Clemson University Linda Zimmerman Oakton Community College Worth Publishers
Sexual Knowledge Quiz • http://www.healthunit.com/article.aspx?ID=15160
Sexual Motivation Sex is a physiologically based motive, like hunger, but it is more affected by learning and values.
Sexual Response Cycle • Masters and Johnson (N= 382 f and 312 m) the four stages of sexual responding • excitement • plateau • orgasm • resolution • Refractory Period • resting period after orgasm, during which a • man cannot achieve another orgasm
Sexual Disorder …a problem that consistently impairs sexual arousal or functioning Can include: lack of motivation, arousal Premature ejaculation (men) Erectile dysfunction (men) Orgasmic dysfunction (women) Treatments: Sexual therapy Medication
Estrogen • a sex hormone, secreted in greater amounts by females than by males • in nonhuman females, levels peak during ovulation, promoting sexual receptivity
Testosterone • most important of the male sex hormones • both males and females have it • extra testosterone in males: • stimulates growth of sex organs in the fetus • development of the male sex characteristics during puberty
Sexual Orientation • an enduring sexual attraction toward: • members of one’s own sex (homosexual orientation) • Members of the other sex (heterosexual orientation)
Brain Differences • On the average (the evidence is strongest for males), various biological and behavioral traits of gays and lesbians fall between those of straight men and straight women.
Brain Differences • One hypothalmic cell cluster is larger in straight men than in women and gay men, same difference is found in male sheep displaying other-sex versus same-sex attraction. • Anterior commissure is larger in gay men than in women or straight men.
Genetic Influences • Shared sexual orientation is higher among identical twins than among fraternal twins. • Sexual attraction in male fruit flies can be genetically manipulated. http://clipsforclass.com/sexuality.php
Prenatal Hormonal Influences • Altered prenatal hormone exposure may lead to homosexuality in humans and other animals. • Men with several older brothers are more likely to be gay.
Brain differences and prenatal influences may contribute to observed gay-straight differences in childrens’: