Effects of Sex Steroids on the Development of the Vomeronasal System in the Rat

  • S. Segovia
  • A. Guillamón


The existence of morphological, physiological and biochemical sex differences in the central nervous system are well know (Arnold and Gorski 1984). These differences are normally established during a perinatal period of maximal susceptibility to sex steroids (Goy and McEwen 1980). Various nuclei that, either directly or indirectly, receive input from the vomeronasal organ (VNO) and the accessory olfactory bulb (AOB) (Scalia and Winans 1976) are targets for sex steroid hormones (Stumpf and Sar 1982) and present sexual dimorphism. For example: the medial amygdala (Staudt and Dörner 1976), the medial preoptic area (Dörner and Staudt 1968; Gorski et al. 1978, 1980) the ventro medial nucleus of the hypothalamus (Dörner and Staudt 1969) and the ventral premammillary nucleus (Dörner 1976). Moreover, many of these structures are also involved in reproductive behavior (Dörner 1976; Larsson 1979; Pfaff 1980).


Sexual Dimorphism Gonadal Steroid Mitral Cell Testosterone Propionate Medial Preoptic Area 
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Copyright information

© Springer-Verlag Berlin Heidelberg 1986

Authors and Affiliations

  • S. Segovia
    • 1
  • A. Guillamón
    • 1
  1. 1.Departamento de PsicobiologíaUniversidad Nacional de Educación a Distancia, Ciudad UniversitariaMadridSpain

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