Reference : Enhanced neural activation in brain regions mediating sexual responses following expo...
Scientific journals : Article
Social & behavioral sciences, psychology : Neurosciences & behavior
Life sciences : Zoology
Enhanced neural activation in brain regions mediating sexual responses following exposure to a conditioned stimulus that predicts copulation.
Taziaux, Mélanie [Université de Liège - ULg > > CNCM/ Centre fac. de rech. en neurobiologie cell. et moléc. >]
Kahn, A. [> > > >]
Moore, J. [> > > >]
Balthazart, Jacques mailto [Université de Liège - ULg > Département des sciences biomédicales et précliniques > Biologie de la différenciation sexuelle du cerveau >]
Holloway, K. S. [> > > >]
Elsevier Science
Yes (verified by ORBi)
New York
[en] Analysis of Variance ; Animals ; Conditioning, Classical/physiology ; Behavior, Animal ; Copulation/physiology ; Female ; Gene Expression Regulation/physiology ; Male ; Neurons/physiology ; Preoptic Area/cytology/physiology ; Proto-Oncogene Proteins c-fos/metabolism ; Quail ; Septal Nuclei/cytology/physiology ; Statistics, Nonparametric
[en] Stimuli associated with sexual behavior increase reproductive success if presented prior to copulation. In Japanese quail, inseminations that take place in a context that predicts the arrival of a female are more likely to result in fertilized eggs. We demonstrate here that in male Japanese quail a sexual conditioned stimulus (CS) also enhances activity in two brain regions that mediate sexual behavior, the medial preoptic area and the medial part of the bed nucleus of the stria terminalis. C-fos expression, a marker of neural activation, was higher in these areas in subjects exposed sequentially to a sexual CS and copulation than in subjects exposed to copulation or the CS alone or in subjects exposed to no sexual stimulus, either an identical, untrained CS or an empty arena. These results suggest a link between a proximate result of sexual CS presentation, male brain activation, and a known ultimate outcome, increased fertilizations.

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