List of contributors; Dedication; Preface; Acknowledgments; Part I. Sex Steroid Responsive Circuits Regulating Male and Female Reproductive Behaviours: 1. Hormonal influence on neurons of the mating behaviour pathway in male hamsters Ruth I. Wood and Sarah W. Newman; 2. Neural circuitry for the hormonal control of male sexual behaviour Pauline Yahr; 3. Oestrogen receptor mRNA: neuroanatomical distribution and regulation in three behaviorally relevant physiological models Joan I. Morrell, Christine K. Wagner, Karl F. Malik and Christine A. Lisciotto; 4. Hormonal regulation of limbic and hypothalamic pathways Richard B. Simerly; Part II. Sex Steroid Interaction with Specific Neurochemical Circuits: 5. Ovarian steroid interactions with hypothalamic oxytocin circuits involved in reproductive behaviour Loretta M. Flanagan and Bruce S. McEwen; 6. Gonadal steroid regulation of hypothalamic opioid function Ronald P. Hammer, Jr and Sun Cheung; 7. Neonatal and adult effects of gonadal steroids on the cholecystokinin circuit modulating reproductive behaviour Paul Popper, Catherine A. Priest and Paul E. Micevych; 8. Cholinergic regulation of female sexual behaviour Gary Dohanich; 9. Sex steroid regulation of tachykinin peptides in neuronal circuitry mediating reproductive functions Thomas R. Akesson and Paul E. Micevych; 10. Dopaminergic influences on male rat sexual behaviour Elaine M. Hull; 11. Studying neurotransmitter systems to understand development and function of sex differences in the brain: the case of Vasopressin Geert J. De Vries; Part III. Cellular and Molecular Mechanisms Regulated by Sex Steroids: 12. Neurosteroids and neuroactive steroids Paul Robel and Etienne-Emile Baulieu; 13. Estrogen synthesis and secretion by the songbird Barney A. Schlinger and Arthur P. Arnold; 14. Neurobiological regulation of hormonal response by progestin and estrogen receptors Jeffrey D. Blaustein, Marc J. Tetel and John M. Meredith; 15. Molecular actions of steroid hormones and their possible relations to reproductive behaviours Mona Freidin and Donald Pfaff; 16. Effects of gonadal steroids on the central nervous system detected by the study of Fos protein expression Gloria E. Hoffman, Rula Abbud, Wei-Wei Le, Barbara Attardi, Kathie Berghorn and M. Susan Smith; 17. Developmental interactions of estrogens with the neurotrophins and their receptors C. Dominique Toran-Allerand; 18. Gonadal steroid influences on cell-cell interactions in the magnocellular hypothalamo-neurohypophysial system Glenn I. Hatton; Index.