Effects of lesions in the medial preoptic region on precocial copulation in the male chick |
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Authors: | Cornelius C. Meyer |
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Affiliation: | Departments of Psychology and Biology, Quinnipiac College, Hamden, Connecticut 06518 USA |
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Abstract: | Chicks showing androgen-induced precocial copulation to a prone hand were given bilateral electrolytic lesions in the medial preoptic region. Symmetrical lesions in the medial preoptic area disrupted copulatory behavior over the 10-day postoperative test period. Asymmetrical or sham lesions did not differentially affect copulatory activity. Postoperative records indicated that all animals showed similar increases in weight gain and comb size. |
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