Sex differences and reversal of brain asymmetry by testosterone in chickens
Sex differences and reversal of brain asymmetry by testosterone in chickens
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鸡的性别差异和睾酮对大脑不对称性的逆转
DOI：
10.1016/0166-4328(87)90026-x
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发表时间：
1987
影响因子：
2.7
通讯作者：
L. Rogers
中科院分区：
文献类型：
--
作者：
J. Zappia;L. Rogers
研究了睾酮对雏鸡视觉辨别不对称性的影响。两周大的小鸡进行测试的卵石地板视觉辨别任务。雄性小鸡被发现具有用于视觉辨别学习的大脑不对称性，因为与使用左眼系统进行单眼测试的小鸡相比，使用右眼系统进行双眼测试或单眼测试的小鸡具有上级学习性能。未发现对照雌性雏鸡具有脑不对称性。替西泮治疗（12.5毫克的庚酸睾酮在第2天postthatch）逆转了模式的大脑不对称观察到的控制男性，但不是女性。此外，在雄性和雌性小鸡中，在用谷氨酸进行单侧颅内处理后，证明了视觉辨别学习的不对称性。
The study examined the effect of testosterone on the asymmetry of visual discrimination performance of young chicks. Two-week-old chicks were tested on the pebble floor visual discrimination task. Male chicks were found to have brain asymmetry for visual discrimination learning, since chicks tested binocularly, or tested monocularly using their right eye system, have superior learning performance compared to chicks tested monocularly using their left eye system. Control female chicks were not found to have brain asymmetry. Testosterone treatment (12.5 mg of testosterone oenanthate on day 2 posthatch) reversed the pattern of brain asymmetry observed in control males but not females. In addition, asymmetry of visual discrimination learning is demonstrated in both male and female chicks after unilateral intracranial treatment with monosodium glutamate.