Cortical mechanisms for afterimage formation: evidence from interocular grouping | |
Dong, Bo1,2; Holm, Linus3; Bao, Min1![]() | |
刊名 | SCIENTIFIC REPORTS
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2017-01-23 | |
通讯作者邮箱 | baom@psych.ac.cn |
卷号 | 7期号:0页码:41101 |
ISSN号 | 2045-2322 |
通讯作者 | Bao, Min |
英文摘要 | Whether the retinal process alone or retinal and cortical processes jointly determine afterimage (AI) formation has long been debated. Based on the retinal rebound responses, recent work proposes that afterimage signals are exclusively generated in the retina, although later modified by cortical mechanisms. We tested this notion with the method of "indirect proof". Each eye was presented with a 2-by-2 checkerboard of horizontal and vertical grating patches. Each corresponding patch of the two checkerboards was perpendicular to each other, which produces binocular rivalry, and can generate percepts ranging from complete interocular grouping to either monocular pattern. The monocular percepts became more frequent with higher contrast. Due to adaptation, the visual system is less sensitive during the AIs than during the inductions with AI-similar contrast. If the retina is the only origin of AIs, comparable contrast appearance would require stronger retinal signals in the AIs than in the inductions, thus leading to more frequent monocular percepts in the AIs than in the inductions. Surprisingly, subjects saw the fully coherent stripes significantly more often in AIs. Our results thus contradict the retinal generation notion, and suggest that in addition to the retina, cortex is directly involved in the generation of AI signals. |
WOS标题词 | Science & Technology |
类目[WOS] | Multidisciplinary Sciences |
研究领域[WOS] | Science & Technology - Other Topics |
关键词[WOS] | BINOCULAR-RIVALRY ; NEGATIVE AFTERIMAGES ; PERCEIVED CONTRAST ; STRIATE CORTEX ; VISUAL-CORTEX ; ADAPTATION ; ATTENTION ; MICROSACCADES ; MONKEY ; NEURONS |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000392418700001 |
内容类型 | 期刊论文 |
源URL | [http://ir.psych.ac.cn/handle/311026/21142] ![]() |
专题 | 心理研究所_中国科学院行为科学重点实验室 |
作者单位 | 1.Chinese Acad Sci, Inst Psychol, Key Lab Behav Sci, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100101, Peoples R China 3.Umea Univ, Dept Psychol, S-90187 Umea, Sweden |
推荐引用方式 GB/T 7714 | Dong, Bo,Holm, Linus,Bao, Min. Cortical mechanisms for afterimage formation: evidence from interocular grouping[J]. SCIENTIFIC REPORTS,2017,7(0):41101. |
APA | Dong, Bo,Holm, Linus,&Bao, Min.(2017).Cortical mechanisms for afterimage formation: evidence from interocular grouping.SCIENTIFIC REPORTS,7(0),41101. |
MLA | Dong, Bo,et al."Cortical mechanisms for afterimage formation: evidence from interocular grouping".SCIENTIFIC REPORTS 7.0(2017):41101. |
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