Light exposure of chick embryo influences lateralized recall of imprinting memory.
Light exposure of chick embryo influences lateralized recall of imprinting memory.
复制标题
鸡胚胎的光照影响印记记忆的侧化回忆。
DOI：
10.1037//0735-7044.113.6.1267
复制
发表时间：
1999
影响因子：
1.9
通讯作者：
L. Rogers
中科院分区：
文献类型：
--
作者：
A. Johnston;L. Rogers
众所周知，环境线索（例如孵化后期的光线）会导致鸟类某些形式的视觉引导行为的偏侧化。作者研究了光对雏鸡印记记忆侧向回忆的影响。在孵化的E19天，闭上一只眼睛24小时。另一只眼睛受到光的刺激。对小鸡进行印记，然后在向任一半球注射低剂量（500 ng）谷氨酸后测试它们的印记偏好。在孵化期间右眼暴露在光线下的雏鸡在注射左半球后表现出对印记刺激的回忆，但在注射到右半球后却没有。对于左眼暴露在光线下的雏鸡来说，情况恰恰相反。因此，在孵化前，眼睛同侧的半球暴露在光线下对于回忆印记记忆至关重要。用于回忆印记记忆的半球接收间接视觉输入，并由环境刺激（不对称光输入）决定。
Environmental cues, such as light during the later part of incubation, are known to establish lateralization of some forms of visually guided behaviors in birds. The authors investigated the effect of light on lateralized recall of imprinting memory in chicks. On Day E19 of incubation, one eye was occluded for 24 hr. The other eye received stimulation by light. Chicks were imprinted and then tested for their imprinting preferences after administration of a low dose (500 ng) of glutamate into either hemisphere. Chicks that had the right eye exposed to light during incubation showed recall of the imprinting stimulus after injection of the left hemisphere but not after injection into the right hemisphere. The reverse was found for chicks that had the left eye exposed to light. Hence, the hemisphere ipsilateral to the eye exposed to light before hatching became essential for recall of imprinting memory. The hemisphere used in recall of imprinting memory received indirect visual inputs and was determined by environmental stimulation (asymmetrical light input).