PSYC 1315 1st Edition Lecture 22Outline of Last LectureMotivation and emotion Current Lecture Motivation and emotionDisordered eating AnorexiaNervosa Relentless pursuit of thinness through starvation Can literally starve themselves to death BulimiaNervosa Follows a binge-and-purge eating pattern The Biology of Sex Brain areas associated with motivation for sexual behavior: Hypothalamus Limbic system Sex hormones: - Estrogens-Predominatesinfemales,producedby the ovaries in females- Androgens-Predominatesinmales,producedby testes in males and the adrenal glands in both males and females Testosterone is an androgen Master’s and Johnsons Human Sexual Response Pattern Four phases: excitement, plateau, orgasm, and resolution Gender Differences During the resolution phase, females maybe stimulated to orgasm again without delay Whereas men, enter a refractory period in which they cannot have another orgasm. May last several minutes to a day Refractory period increases as men age Similar descriptions of orgasms Cognitive Factors Sexual scripts: Patterns of expectancies for how people should behave sexually Traditional religious script: sex is accepted only within marriage Romantic script: sex is equated with
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