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Effects of pattern shape on adaptation of dLGN cell

机译:图案形状对dLGN细胞适应性的影响

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摘要

Pattern adaptation is one of the fundamental sensory processes in the visual system. In this study, we compared pattern adaptation induced by two types of sinusoidal drifting grating in dLGN cells of cat. The two types of grating have the same parameters (e.g. spatial frequency, temporal frequency and contrast) except their pattern shapes, one of which is normal grating and the other annular grating. The results suggested that the annular grating elicited stronger response and stronger pattern adaptation than the normal grating. This is consistent with the adaptation and aftereffect to the two types of drifting gratings seen in psychology and may reflect the subcortical neural mechanism underlying these psychological phenomena.
机译:模式适应是视觉系统中的基本感觉过程之一。在这项研究中,我们比较了两种类型的正弦漂移光栅在猫的dLGN细胞中引起的模式适应。两种类型的光栅除了它们的图案形状外,具有相同的参数(例如,空间频率,时间频率和对比度),其中一种是普通光栅,另一种是环形光栅。结果表明,环形光栅比普通光栅具有更强的响应能力和更强的图案适应性。这与心理学中对两种类型的漂移光栅的适应和后效应一致,并且可能反映了这些心理现象背后的皮层下神经机制。

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