1. Copyright © 2006, Elsevier Inc. All rights reserved C HAPTER 8 The Human Sexual Response

2. Copyright © 2006, Elsevier Inc. All rights reserved F IGURE 8-1 T HE FEMALE SEXUAL RESPONSE CYCLE.

3. Copyright © 2006, Elsevier Inc. All rights reserved F IGURE 8-2 T HE SEXUAL RESPONSE CYCLE IN MEN ( A ) AND WOMEN ( B ). C URVES REPRESENT DEGREES OF SEXUAL AROUSAL. T HE THREE DIFFERENT FEMALE CYCLE PATTERNS IN ( B ) ARE DISCUSSED IN THE TEXT.

4. Copyright © 2006, Elsevier Inc. All rights reserved F IGURE 8-3 T HE MALE SEXUAL RESPONSE CYCLE.

5. Copyright © 2006, Elsevier Inc. All rights reserved F IGURE 8-4 R EPRESENTATION OF THE ERECT PENIS INSERTED INTO THE VAGINA DURING VAGINAL COITUS

6. Copyright © 2006, Elsevier Inc. All rights reserved B OX 1: H UMAN P HEROMONES AND THE V OMERONASAL O RGAN

7. Copyright © 2006, Elsevier Inc. All rights reserved B OX 2: H UMAN M ATING S YSTEMS

8. Copyright © 2006, Elsevier Inc. All rights reserved F IGURE 8-5 T HE K INSEY ADULT HETEROSEXUAL – HOMOSEXUAL CONTINUUM : 0, EXCLUSIVELY HETEROSEXUAL BEHAVIOR ; 1, MOSTLY HETEROSEXUAL, WITH INCIDENTAL HOMOSEXUAL EXPERIENCE ; 2, HETEROSEXUAL, WITH SUBSTANTIAL HOMOSEXUAL EXPERIENCE ; 3, AN INDIVIDUAL WITH SIMILAR AMOUNTS OF HETEROSEXUAL AND HOMOSEXUAL EXPERIENCE ; 4, HOMOSEXUAL, WITH SUBSTANTIAL HETEROSEXUAL EXPERIENCE ; 5, MOSTLY H OMOSEXUAL, WITH INCIDENTAL HETEROSEXUAL EXPERIENCE ; AND 6, EXCLUSIVELY HOMOSEXUAL BEHAVIOR. T HE PROPORTION OF EACH ARROW SHADED REPRESENTS THE PERCENTAGE OF HETEROSEXUAL BEHAVIOR. I NDIVIDUALS WITH SCORES OF 1 THROUGH 5 COULD BE TERMED BISEXUAL.