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  Human intracranial recordings link suppressed transients rather than 'filling-in' to perceptual continuity across blinks

Golan, T., Davidesco, I., Meshulam, M., Groppe, D., Megevand, P., Yeagle, E., et al. (2016). Human intracranial recordings link suppressed transients rather than 'filling-in' to perceptual continuity across blinks. eLife, 5: e17243, pp. 1-28.

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 Creators:
Golan, T., Author
Davidesco, I., Author
Meshulam, M., Author
Groppe, D., Author
Megevand, P., Author
Yeagle, E., Author
Goldfinger, M., Author
Harel, M., Author
Melloni, L.1, Author              
Schroeder, C., Author
Deouell, L., Author
Mehta, A., Author
Malach, R., Author
Affiliations:
1Neurophysiology Department, Max Planck Institute for Brain Research, Max Planck Society, ou_2461705              

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 Abstract: We hardly notice our eye blinks, yet an externally generated retinal interruption of a similar duration is perceptually salient. We examined the neural correlates of this perceptual distinction using intracranially measured ECoG signals from the human visual cortex in 14 patients. In early visual areas (V1 and V2), the disappearance of the stimulus due to either invisible blinks or salient blank video frames ('gaps') led to a similar drop in activity level, followed by a positive overshoot beyond baseline, triggered by stimulus reappearance. Ascending the visual hierarchy, the reappearance-related overshoot gradually subsided for blinks but not for gaps. By contrast, the disappearance-related drop did not follow the perceptual distinction it was actually slightly more pronounced for blinks than for gaps. These findings suggest that blinks' limited visibility compared with gaps is correlated with suppression of blink-related visual activity transients, rather than with "filling-in" of the occluded content during blinks.

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Language(s): eng - English
 Dates: 2016
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Internal
 Identifiers: eDoc: 724395
ISI: 000388224800001
 Degree: -

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Title: eLife
Source Genre: Journal
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Pages: - Volume / Issue: 5 Sequence Number: e17243 Start / End Page: 1 - 28 Identifier: ISSN: 2050-084X