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首页> 外文期刊>BMC Neuroscience >Imprinting modulates processing of visual information in the visual wulst of chicks
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Imprinting modulates processing of visual information in the visual wulst of chicks

机译：印迹调节小鸡视觉蠕动中视觉信息的处理

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摘要

Background Imprinting behavior is one form of learning and memory in precocial birds. With the aim of elucidating of the neural basis for visual imprinting, we focused on visual information processing. Results A lesion in the visual wulst, which is similar functionally to the mammalian visual cortex, caused anterograde amnesia in visual imprinting behavior. Since the color of an object was one of the important cues for imprinting, we investigated color information processing in the visual wulst. Intrinsic optical signals from the visual wulst were detected in the early posthatch period and the peak regions of responses to red, green, and blue were spatially organized from the caudal to the nasal regions in dark-reared chicks. This spatial representation of color recognition showed plastic changes, and the response pattern along the antero-posterior axis of the visual wulst altered according to the color the chick was imprinted to. Conclusion These results indicate that the thalamofugal pathway is critical for learning the imprinting stimulus and that the visual wulst shows learning-related plasticity and may relay processed visual information to indicate the color of the imprint stimulus to the memory storage region, e.g., the intermediate medial mesopallium.
机译：背景印记行为是性早熟鸟类学习和记忆的一种形式。为了阐明视觉烙印的神经基础，我们集中于视觉信息处理。结果视觉蠕动病灶的功能与哺乳动物的视觉皮层相似，在视觉印迹行为上引起顺行性健忘症。由于对象的颜色是压印的重要线索之一，因此我们研究了视觉效果中的颜色信息处理。在孵化后早期，检测到来自视觉异常的内在光学信号，在黑暗饲养的雏鸡中，从尾部到鼻部在空间上组织了对红色，绿色和蓝色的响应的峰值区域。颜色识别的这种空间表示显示出塑性变化，并且沿着视觉沃尔特斯前后轴的响应模式根据标记雏鸡的颜色而改变。结论这些结果表明，丘脑-真菌途径对于学习印迹刺激至关重要，视觉上的颤动表现出与学习有关的可塑性，并可能将加工后的视觉信息传递给记忆刺激区域，例如记忆中间区域。中脑皮层。

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