期刊
CONSCIOUSNESS AND COGNITION
卷 10, 期 4, 页码 574-587出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1006/ccog.2001.0526
关键词
conscious vision; perceptual matching; visual cortex; qualia; access; GY
GY, an extensively studied human hemianope, is aware of salient visual events in his cortically blind field but does not call this vision. To learn whether lie has low-level conscious visual sensations or whether instead he has gained conscious knowledge about, or access to, visual information that does not produce a conscious phenomenal sensation, we attempted to image process a stimulus s presented to the impaired field so that when the transformed stimulus T(s) was presented to the normal hemifield it would cause a sensation similar to that caused by s in the impaired field. While degradation of contrast, spatio-temporal filtering, contrast reversal, and addition of smear and random blobs all failed to match the response to a flashed bar s, moving textures of low contrast were accepted to match the response to a moving contrast-defined bar, s(m) Orientation and motion direction discrimination of the perceptually matched stimuli [s(m) and T(s(m))] was closely similar. We suggest that the existence of a satisfactory match indicates that GY has phenomenal vision. (C) 2001 Elsevier Science.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据