作者
Zien Huang, Poutasi WB Urale, Catherine A Morgan, Geraint Rees, D Samuel Schwarzkopf
发表日期
2023/8/9
期刊
Royal Society Open Science
卷号
10
期号
8
页码范围
230380
出版商
The Royal Society
简介
The visual cortex contains information about stimuli even when they are not consciously perceived. However, it remains unknown whether the visual system integrates local features into global objects without awareness. Here, we tested this by measuring brain activity in human observers viewing fragmented shapes that were either visible or rendered invisible by fast counterphase flicker. We then projected measured neural responses to these stimuli back into visual space. Visible stimuli caused robust responses reflecting the positions of their component fragments. Their neural representations also strongly resembled one another regardless of local features. By contrast, representations of invisible stimuli differed from one another and, crucially, also from visible stimuli. Our results demonstrate that even the early visual cortex encodes unconscious visual information differently from conscious information …
学术搜索中的文章
Z Huang, PWB Urale, CA Morgan, G Rees… - Royal Society Open Science, 2023