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Measuring of the postcopulatory departure in male rats

100%
Beck J.
Acta Neurobiologiae Experimentalis
|
1997
|
vol. 57
|
issue 3
255-258
EN
Spontaneous departure from the female was observed in male rats during testing of instrumental sexual responses. Male rats were tested in an apparatus consisting of two compartments connected by a runway composed of four parallel corridors. The final corridor of the runway and the goal compartment as well as the goal compartment and the start compartment were connected by one-way doors enabling the male to run only in one direction. An incentive female was tethered in the goal compartment. After contact with the female, lasting up to the end of a mount bout, or after exploration of the goal compartment, if the copulatory behaviour was not displayed, the male spontaneously passed to the start compartment and a new run started thereafter. The male thus performed the runs through the apparatus without any intervention from the experimenter.
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The role of sexual reward in the temporal patterning of copulatory behaviour in male rats

75%
Beck J., Bialy M.
Acta Neurobiologiae Experimentalis
|
1993
|
vol. 53
|
issue 3
451-456
EN
In 8 male rats instrumental responses reinforced by contact with an estrous female with an intact or a surgically closed vagina were investigated. Contact with the female lasted until the end of the mount bout. It was observed that neither the rewarding value of the mount bout (expressed by the duration of the response) nor its arousing properties (expressed by the rate of bar presses) depended on the quality (mounts or intromissions) or quantity of the copulatory events of which it was composed. It is suggested that the temporal patterning of in male rats depends on fluctuations of . This sexual reward can be a result of both genital stimulation as well as the performance of mounting under the influence of sign stimuli coming from the estrous female.
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