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Outline Arousal and Sexual Response

Outline Arousal and Sexual Response - Sexual Arousal and...

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Sexual Arousal and Sexual Response
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Sexual arousal Frequently refer to sexual arousal as “turned on” or “revved up” or “hot” which likens it to an energy system Scientifically - a state of activation of a complex system of reflexes involving sexual organs, hormones and the nervous system which includes the brain. Brain has capacity to create images and fantasies Other factors: our emotions, the level of intimacy between two people and host of others
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Sexual Arousal - The role of hormones to influence sexuality, sensuality and interpersonal attraction in humans Hormones chemical messengers produced in one part of the body that stimulate activity in another part produced by endocrine glands which are part of the endocrine system, our internal system of chemical communication. Sex hormones or steroid hormones are secreted by testicles, ovaries and adrenal glands In males, 95% of androgens produced by testes, 5% by adrenal cortex In females, equal proportions of androgens produced by ovaries and adrenal cortex
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Sexual Arousal - The role of hormones Steroid hormones estrogen: “female” sex hormone produced by ovaries & testes Males produce much smaller quantities of estrogen Neuropeptide hormones influence arousal, attraction and response – produced in brain Oxytocin –”love hormone” which influences erotic and emotional attraction to each other Oxytocin facilitates ejection of milk from nipple during breast feeding
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Sexual Arousal - The role of hormones Neuropeptide hormones - Oxytocin Secreted during cuddling and physical intimacy Touch triggers its release Increased levels of circulating oxytocin stimulates sexual activities in a variety of animals including humans Increases skin sensitivity to touch, encouraging affectionate behavior Oxytocin increases as a person moves through the sexual response cycle High levels associated with orgasmic release in both sexes and uterine contractions Elevated levels maintained for time after orgasms Could contribute to emotional and erotic bonding of sexual partners.
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Sexual Arousal - Hormones in male sexual behavior testosterone and desire Testosterone has a greater impact on male sexual desire or drive or libido than on sexual functioning castration research Men who have undergone castration, the removal of the testes, for medical reasons such as prostate cancer experience varying degrees of reduced sexual interest and activity Surgical procedure called Orchidectomy
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Sexual Arousal - Hormones in male sexual behavior Drugs called antiandrogens used in Europe and US to treat sex offenders as well as prostrate cancer Reduces amount testosterone circulating in blood Also reduces both sexual interest and sexual activity in human males (and females) Hypogonadism –state of testosterone deficiency resulting from certain diseases of the endocrine system Studies of men with this condition provides strong evidence that testosterone important in male sexual desire.
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