Androgen-sensitive midbrain sites and visual attention in chicks

Details Androgen-sensitive midbrain sites and visual attention in chicks Androgen-sensitive midbrain sites and visual attention in chicks

Feb 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976natur.259..689m&link_type=abstract

Nature, Volume 259, Issue 5545, pp. 689-690 (1976).

Physics

Scientific paper

NEUROANATOMICAL networks within the preoptic-hypothalamic continuum of the avian brain contain neurones that are androgen-sensitive1 and involved in the control of precocial copulation2. In autoradiographic studies of the male chick brain, one of us (C.C.M.) has found midbrain structures, nucleus intercollicularis (ICo) and nucleus isthmo-opticus (IO) that concentrate radioactive testosterone or its metabolites. Neither of these structures has been implicated in the expression of sexual behaviour. Rather, there is evidence that both are involved in visual responsiveness that is not specifically associated with sexual behaviour. We wish to present the autoradiographic findings and relate them to the existing evidence of the functions of these two nuclei and testosterone in visual attention.

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