Abstract
Sexual behaviors have evolved to optimize reproduction for a given species. However, in addition to reproduction, individuals also engage in sexual behavior for the associated feelings of euphoria we humans (and most likely all other animals) experience as orgasm. Sexual behaviors include both courtship, such as plumage displays in birds and subtle body language in people, and copulatory behaviors that we commonly think of as “sex,” including in many animals stereotypical pelvic thrusting, erection, and ejaculation. Such behaviors are produced as a result of a tight coordination between various sensory inputs as well as the internal state of the organism. Of particular importance to the regulation of sexual behavior are the sex hormones testosterone and estradiol, which have evolved an efficient and elegant dual role in many species that both prepares gametes for reproduction and primes the neural circuits underlying sexual behavior. You will find that much of what we know about the brain and sexual behavior comes from studies in nonhuman animals including birds and rodents, and in particular the rat. In addition, fruit fly, mice, and voles have been informative in delineating the genetics of sexual behavior.
Joseph J. Normandin and Anne Z. Murphy contributed the male sexual behavior sections. Donald W. Pfaff contributed the female sexual behavior sections
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Abbreviations
- AR:
-
Androgen receptor
- DM:
-
Dorsomedial nucleus of the L5-S1 spinal cord
- DL:
-
Dorsolateral nucleus of the L5-S1 spinal cord
- ERα :
-
Estrogen receptor alpha
- ERβ :
-
Estrogen receptor beta
- LSt:
-
Lumbar spinothalamic spinal cord cells
- MeA:
-
Medial amygdala
- MPOA:
-
Medial preoptic area of the hypothalamus
- nPGi:
-
Nucleus paragigantocellularis of the brainstem
- PAG:
-
Periaqueductal gray of the midbrain
- PVN:
-
Paraventricular nucleus of the hypothalamus
- SPFpc:
-
Parvocellular subparafascicular nucleus of the thalamus
- V1aR:
-
Vasopressin receptor 1a
Further Reading
Bocklandt S, Hamer DH (2003) Beyond hormones: a novel hypothesis for the biological basis of male sexual orientation. J Endocrinol Invest 26:8–12
Burnett AL, Goldstein I, Andersson KE, Argiolas A, Christ G, Park K, Xin ZC (2010) Future sexual medicine physiological treatment targets. J Sex Med 7:3269–3304
Emmons SW, Lipton JJ (2003) Genetic basis of male sexual behavior. Neurobiology 54:93–110
Giuliano F, Rampin O (2004) Neural control of erection. Physiol Behav 83:189–201
Giuliano F, Pfaus J, Srilatha B, Hedlund P, Hisasue S, Marson L, Wallen K (2010) Experimental models for the study of female and male sexual function. J Sex Med 7:2970–2995
Normandin JJ, Murphy AZ (2011) Somatic genital reflexes in rats with a nod to humans: anatomy, physiology, and the role of the social neuropeptides. Horm Behav 59(5):656–665, Epub 19 Feb 2011
Ortigue S, Bianchi-Demicheli F, Patel N, Frum C, Lewis JW (2010) Neuroimaging of love: fMRI meta-analysis evidence toward new perspectives in sexual medicine. J Sex Med 7:3541–3552
Pfaff DW (1999) Drive. M.I.T Press, Cambridge, MA
Pfaff DW et al (eds) (2009) Hormones, brain and behavior, 2nd edn. Academic/Elsevier, San Diego
Pfaus JG (2009) Pathways of sexual desire. J Sex Med 6:1506–1533
Tetel MJ, Pfaff DW (2010) Contributions of estrogen receptor-α and estrogen receptor-ß to the regulation of behavior. Biochem Biophys Acta 1800:1084–1089
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Normandin, J.J., Pfaff, D.W., Murphy, A.Z. (2013). Sexual Behavior. In: Pfaff, D.W. (eds) Neuroscience in the 21st Century. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-1997-6_77
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DOI: https://doi.org/10.1007/978-1-4614-1997-6_77
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