V1 中的视网膜活动反映的是后像的感知大小，而不是视网膜大小。
Retinotopic activity in V1 reflects the perceived and not the retinal size of an afterimage.
机构信息
The Brain and Mind Institute, The University of Western Ontario, London, Ontario, Canada.
出版信息
Nat Neurosci. 2012 Mar 11;15(4):540-2. doi: 10.1038/nn.3069.
DOI:10.1038/nn.3069
PMID:22406550
Abstract
An afterimage looks larger when one fixates on a distant than on a closer surface. We show that the retinotopic activity in the primary visual cortex (V1) associated with viewing an afterimage is modulated by perceived size, even when the size of the retinal image remains constant. This suggests that V1 has an important role in size constancy when the viewing distance of the stimulus changes.
摘要
当注视远处表面时，后像看起来会更大。我们表明，与观看后像相关的初级视觉皮层 (V1) 的视网膜投射活动会受到感知大小的调节，即使视网膜图像的大小保持不变。这表明，当刺激的观察距离改变时，V1 在大小恒常性中具有重要作用。
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