2009, Número 5
<< Anterior Siguiente >>
Rev Fac Med UNAM 2009; 52 (5)
Las diferencias anatómicas cerebrales que implican diferencias funcionales (2a de dos partes)
Parra GL, García HAA, Ortiz VS, Pérez SD, Nájera RJ, Basurto ANE, Espinoza CVE, Rivas BRI
Idioma: Español
Referencias bibliográficas: 43
Paginas: 212-218
Archivo PDF: 46.05 Kb.
FRAGMENTO
La conducta sexual y el circuito neural dimórfico
Los circuitos cerebrales asociados con conductas sexuales exhiben diferencias estructurales que se correlacionan con el sexo, la preferencia sexual, o la identidad de género. Se ha encontrado que el dimorfismo sexual en estos circuitos resulta importante hasta la pubertad, esto implica que factores postnatales, como la producción de hormonas gonadales y factores psicosociales, juegan un rol importante en el establecimiento de la naturaleza dimórfica en circuitos neurales que median conductas sexuales.
REFERENCIAS (EN ESTE ARTÍCULO)
Jongh CE. 2007. Infomed. http://www.sld.cu/sitios/neuroc/temas. php?idv=1718. 12/12/07; 14:03.
Scalia F, Winans SS. New perspectives on the morphology of the olfactory system; Olfactory and vomeronasal pathways in mammals. In: Doty RL, ed. Mammalian olfaction, reproductive processes and behavior. New York: Academic Press; 1976: 7-28.
Johnston RA. Pheromones, the vomeronasal system, and communication. Ann NY Acad Sci 1998; 855: 333-348.
Lee SVD, Boot IM. Spontaneous pseudopregnancy in mice. Acta Physiol Pharmacol Neurol 1955; 4: 442-443.
Vandenbergh J. Male odor accelerates female sexual maturation in mice. Endocrinology 1969; 84: 658-660.
Whitten W. Modification of the estrous cycle of the mouse by external stimuli associated with the male. J Endocrinol 1956; 13: 399-404.
Bruce H. A block to pregnancy in the mouse caused by the proximity of strange males. J Reprod Fertil 1960; 1: 96-103.
Keverne EB. Odor here, odor there: chemosensation and reproductive function. Nature Neuroscience 2005; 8: 1637-1638.
Segovia S, Guillamón A. Sexual dimorphism in the vomeronasal pathway and sex differences in reproductive behaviors. Brain Res Rev 1993; 18: 51-74.
Segovia S, Guillamón A. Effects of sex steroids on the development of the vomeronasal organ in the rat. Dev Brain Res 1982; 5: 209-212.
Segovia S, Guillamon A. Searching for sex differences in the vomeronasal pathway. Horm Behav 1996; 30: 618-626.
Segovia S, Guillamón A, Del Cerro MC et al. The development of brain sex differences: a multisignaling process. Behav Brain Res 1999; 105: 69-80.
Segovia S, Orensanz LM, Valencia A, Guillamón A. Effects of sex steroids on the development of the accessory olfactory bulb in the rat: A volumetric study. Dev Brain Res 1984; 16: 312-314.
Del Abril A, Guillamón A, Segovia S. The bed nucleus of the stria terminalis in the rat: Regional sex differences controlled by gonadal steroids early after birth. Dev Brain Res 1987; 32: 295-300.
Collado P, Valencia A, Del Abril A et al. Effects of estradiol on the development of sexual dimorphism in the bed nucleus of the accessory olfactory tract in the rat. Dev Brain Res 1993; 75: 285-287.
Keverne EB. Importance of olfactory and vomeronasal systems for male sexual function. Physiology and Behavior 2004; 83: 177-187.
Williams PL y col. Anatomía de Gray. 38a ed. España; Churchill Livingstone y Harcourt Brace, 1998: 2100.
Rivera JCJ. Dimorfismo sexual en el cerebro. Ciencia al día 1998; 1(2): 1-13.
Ishunina TA, Unmehopa UA, Van Heerikhuize JJ et al. Metabolic activity of the human ventromedial nucleus neurons in relation to sex ageing. Brain Research 2001; 893: 70-76.
Byne W, Tobet S, Mittiace LA et al. The interstitial nuclei of the human anterior hypothalamus: an investigation of variation with sex, sexual orientation, and HIV Status. Hormones and Behavior 2001; 40: 86-92.
Dörner G. Neuroendocrine response to estrogen and brain differentiation in heterosexuals, homosexuals and transsexuals. Archv Sex Behav 1988; 17: 57-75.
Swaab DF, Hoffman MA. An enlarged suprachiasmatic nucleus in homosexual men. Brain Res 1990; 537: 141-148.
Le Vay S. A difference in hypothalamic structure between heterosexual and homosexual men. Science 253: 1034-1037.
Barbosa P, Sousa N, Madeira D. Ultrastructural evidence of sexual dimorphism in supraoptic neurons: a morphometric study. Journal of Neurocytology 1993; 22: 697-706.
Swaab DF, CJ Chung W, PM Kruijver F et al. Structural and functional sex differences in the human hypothalamus. Hormones and Behavior 2001; 40: 93-98.
Byne W, Lasco MS, Kemether E et al. The interstitial nuclei of the human anterior hypothalamus: an investigation of sexual variation in volume and cell size, number and density. Brain Research 2000; 856: 254-258.
Paredes RG, Piña AL, Bermudez-Rattoni F. Hypothalamic but not cortical grafos induce recovery of sexual behavior and connectivity in medial preoptic area-lesioned rats. Brain Res 1993; 620(2): 351-355.
Xio K, Kondo Y, Sakuma Y. Differential regulation of female rat olfactory preference and copulatory pacing by the lateral septum and medial preoptic area. Neuroendocrinology 2005: 81(1): 56-61.
Vanguardia 2007. http://www.vanguardia.com.mx/diario/home. 12/12/07; 20:30.
Pombo AM, Argemí J. Tratado de endocrinología pediátrica. México; Ediciones Díaz de Santos, 1997: 1440.
Carlson NR. Fisiología de la conducta, 8ª ed. Madrid; Pearson, 2006: 784.
Amunts K, Armstrong E, Malikovic A, Homke, Mohlberg H, Schleicher A, Zilles K; Gender-specific left-right asymmetries in human visual cortex; J Neurosci 2007; 27(6):1356-64.
Zigmod MJ, Bloom FE, Landis SC et al. Fundamental neuroscience. Oval Road, London; Academic Press, 1999: 1600.
Gur RE, Kohler C, Turetsky BJ, Kanes SJ, Bilker WB, Brennan AR, Gur RC. A sexually dimorphic ratio of orbitofrontal to amygdale volume is altered in schizophrenia. Biol Psychiatry 2004; 55(5): 512-7.
Panizzon MS, Hoff AL, Nordahl TE, Kremen WS, Reisman B, Wieneke M, Harris Goodman C, Espinoza S, Liu W, Lim K. Sex differences in the corpus callosum of patients with schizophrenia. Schizophr Res 2003; 62 (1-2): 115-22.
Markham JA, Mckian KP, Stroup TS, Juraska JM. Sexually dimorphic aging of dendritic morphology in CA1 of hippocampus. Hippocampus 2005; 15(1): 97-103.
Cohen KM. Relationships among childhood sex-atypical behavior, spatial ability, handedness, and sexual orientation in men. Arch Sex Behav 2002; 31(1): 129-43.
Matsui M, Gur RC, Turetsky BI, Yan MX, Gur RE. The relation between tendency for psychopathology and reduced frontal brain volume in healthy people. Neuropsychiatry Neuropsychol Behav Neurol 2000; 13(3): 155-62.
Gruzeiler JH, Wilson L, Liddiard D, Peters E, Pusavat L. Cognitive asymmetry patterns in schizophrenia: active and withdrawn syndromes and sex differences as moderators. Shizophr Bull 1999; 25(2): 349-62.
Sanders G, Wright M. Performance of sexually dimorphic cognitive and motor tasks. Arch Sex Behav 1997; 26(5): 463-80.
Schlaepfer TE, Harris GJ, Tien AY, Peng L, Lee S, Pearlson GD. Subjects: a magnetic resonance imaging study. Psychiatry Res 1995; 61(3): 129-35.
Cowell PE, Turetsky BI, Gur RC, Grossman RI, Shtasel DL, Gur RE. Sex differences in aging of the human frontal and temporal lobes. J Neurosci 1994; 14(8): 4748-55.
Braun CM, Dumas A, Colin I. Effects of memory load on interhemispheric relay. Am J Psychol 1994; 107(4): 537-49.