Mismatch Receptive Fields in Mouse Visual Cortex
Mismatch Receptive Fields in Mouse Visual Cortex
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DOI：
10.1016/j.neuron.2016.09.057
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发表时间：
2016-11-23
期刊：
影响因子：
16.2
通讯作者：
Keller, Georg B.
中科院分区：
文献类型：
--
作者：
Zmarz, Pawel;Keller, Georg B.
在初级视觉皮层中，当在视觉空间的特定位置遇到特定刺激时，神经元子集会做出反应。这种活动可以用视觉感受野来模拟。除了视觉驱动的活动外，视觉皮层中还有神经元整合视觉和运动相关的输入，以表明实际和预测的视觉流之间的不匹配。在这里，我们展示了这些不匹配的神经元具有接受野，并在视觉空间的有限区域发出实际和预测视觉流之间的局部不匹配的信号。这些不匹配的感受野与视觉皮层的视网膜定位图对齐，并且与视觉感受野的大小相似。因此，接受野不匹配的神经元表明，实际视觉流与基于自运动预测的视觉流存在局部偏差，因此可能是检测相对于自运动引起的视觉流运动的物体的基础。
In primary visual cortex, a subset of neurons responds when a particular stimulus is encountered in a certain location in visual space. This activity can be modeled using a visual receptive field. In addition to visually driven activity, there are neurons in visual cortex that integrate visual and motor-related input to signal a mismatch between actual and predicted visual flow. Here we show that these mismatch neurons have receptive fields and signal a local mismatch between actual and predicted visual flow in restricted regions of visual space. These mismatch receptive fields are aligned to the retinotopic map of visual cortex and are similar in size to visual receptive fields. Thus, neurons with mismatch receptive fields signal local deviations of actual visual flow from visual flow predicted based on self-motion and could therefore underlie the detection of objects moving relative to the visual flow caused by self-motion.