期刊
CORTEX
卷 49, 期 1, 页码 327-335出版社
ELSEVIER MASSON, CORPORATION OFFICE
DOI: 10.1016/j.cortex.2012.03.007
关键词
Human vision; Transcranial magnetic stimulation; Feedback
资金
- Biotechnology and Biological Sciences Research Council (UK)
- Australian Research Council
- Wales Institute of Cognitive Neuroscience
- Cardiff University
- BBSRC [BB/C519854/2, BB/C519854/1] Funding Source: UKRI
- Biotechnology and Biological Sciences Research Council [BB/C519854/1, BB/C519854/2] Funding Source: researchfish
Recent neuroimaging evidence suggests that visual inputs arising beyond the fovea can be 'fed back' to foveal visual cortex to construct a new retinotopic representation. However, whether these representations are critical for extra-foveal perception remains unclear. Using transcranial magnetic stimulation we found that relatively late (350-400 msec) disruption of foveal retinotopic cortex impaired perceptual discrimination of objects in the periphery. These results are consistent with the hypothesis that feedback to the foveal retinotopic cortex is crucial for extra-foveal perception, and provide additional evidence for 'constructive' feedback in human vision. (C) 2012 Elsevier Ltd. All rights reserved.
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