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We describe a novel procedure for measuring instrumental sexual behavior in the male rat by using a second-order schedule of presentation of sexual reinforcement, an estrous female. Experimental assessment and validation of the paradigm have been achieved by examining (a) the importance of the conditioned stimulus in maintaining instrumental responding by measuring the effects of its omission during a test session, (b) the effects and motivational specificity on instrumental behavior of the postejaculatory refractory period (a period of sexual unarousability) and of satiety for food by measuring the impact of each manipulation on animals working for food and for a female, (c) the effects of replacing an estrous female with an anestrous one as the earned reward, and (d) the correlations between conditioned and unconditioned measures of sexual behavior. We conclude that the second-order paradigm provides a means of distinguishing between the effects of neuroendocrine manipulations on incentive motivational and performance variables underlying the expression of sexual behavior.
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P Fray, and
E Kostarczyk, and
S Taylor, and
P Stacey
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Journal of comparative psychology (Washington, D.C. : 1983),
B J Everitt, and
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E Kostarczyk, and
S Taylor, and
P Stacey
March 1992,
Journal of comparative psychology (Washington, D.C. : 1983),
B J Everitt, and
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June 1990,
Journal of comparative psychology (Washington, D.C. : 1983),
B J Everitt, and
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B J Everitt, and
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Journal of comparative psychology (Washington, D.C. : 1983),
B J Everitt, and
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April 1977,
Journal of comparative and physiological psychology,
B J Everitt, and
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B J Everitt, and
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Journal of comparative psychology (Washington, D.C. : 1983),
B J Everitt, and
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Journal of comparative and physiological psychology,
B J Everitt, and
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