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Earl and Nazima Kowall/Corbis

Figure 9.1 Results of a survey of male sexual practices. (Data from Billy et al., 1993.)

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© Rolf Bruderer/Corbis

Sexual behavior often continues well into old age.

Figure 9.2 The sequence of events leading to sexual orientation for most men and women in a gender-polarizing culture. (From Bem, 1996.)

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AP/Wide World Photos

Teena Brandon, a Nebraska transsexual, passed as a male and referred to himself as Brandon. Violating rigid social norms about sexual identity, Brandon was murdered in 1993 in a hate crime.

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Mitchell Gerber/Corbis

Mitchell Gerber/Corbis

RuPaul Andre Charles (left) is famous as drag queen RuPaul (right). Also a recording artist, television personality, and gay media star, RuPaul says, “If it was just drag I was about I would've already disappeared.”

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UPI-Bettmann/Corbis

Physician Renee Richards played competitive tennis when she was a man, Richard Raskin, and after sex reassignment surgery.

Figure 9.3 The human sexual response cycle. (Based on Kaplan, 1979, and Masters & Johnson, 1966.)

Figure 9.4 Estimated prevalence and severity of erectile dysfunction in a sample of 1,290 men between 40 and 70 years of age. (Adapted from “Impotance and Its Medical and Physiological Correlates: Results of the Massachusetts Male Aging Study,” by H. A. Feldman, I. Goldstein, D. G. Hatzichristou, R. J. Krane, and J. B. McKunlay, 1994, Journal of Urology, 151, pp. 54-61. Copyright © 1994 by the American Urological Association.)

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© A. Ramey/PhotoEdit

Smoking and many other drugs contribute to sexual dysfunction.

Figure 9.5 A model of functional and dysfunctional sexual arousal. (Adapted from Barlow, 1986.)

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Romilly Lockyer/Brand X Pictures/PictureQuest

A therapist usually treats a dysfunction in one partner by seeing the couple together.

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Larry Mulvehill/The Image Works

An inflatable penile implant may be used for men with inadequate sexual functioning.

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© Joel Gordon

Belts, chains, and handcuffs may increase sexual arousal in individuals with sadistic or masochistic tendencies.

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AFP/Getty Images

In 2002, the Catholic Church in the United States was forced to acknowledge a series of cover-ups involving pedophilia by a number of clergy that went back several decades.

Figure 9.6 A model of the development of paraphilia.

Figure 9.7 Ratings of Tony's incestuous urges (deviant) and desire for normal interactions with daughter (nondeviant) during covert desensitization treatment. (From “Measurement and Modification of Incestuous Behavior: A Case Study,” by T. L. Harbert, D. H. Barlow, M. Hersen, and J. B. Austin, 1974, Psychological Reports, 34, 79-86. Copyright © Psychological Reports, Reproduced with permission of the authors and publisher.)

Durand 9-1

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