Electrocorticography Evidence of Tactile Responses in Visual Cortices.

Details

Serval ID
serval:BIB_55A7F4085F0B
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Electrocorticography Evidence of Tactile Responses in Visual Cortices.
Journal
Brain topography
Author(s)
Gaglianese A., Branco M.P., Groen IIA, Benson N.C., Vansteensel M.J., Murray M.M., Petridou N., Ramsey N.F.
ISSN
1573-6792 (Electronic)
ISSN-L
0896-0267
Publication state
Published
Issued date
09/2020
Peer-reviewed
Oui
Volume
33
Number
5
Pages
559-570
Language
english
Notes
Publication types: Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Abstract
There is ongoing debate regarding the extent to which human cortices are specialized for processing a given sensory input versus a given type of information, independently of the sensory source. Many neuroimaging and electrophysiological studies have reported that primary and extrastriate visual cortices respond to tactile and auditory stimulation, in addition to visual inputs, suggesting these cortices are intrinsically multisensory. In particular for tactile responses, few studies have proven neuronal processes in visual cortex in humans. Here, we assessed tactile responses in both low-level and extrastriate visual cortices using electrocorticography recordings in a human participant. Specifically, we observed significant spectral power increases in the high frequency band (30-100 Hz) in response to tactile stimuli, reportedly associated with spiking neuronal activity, in both low-level visual cortex (i.e. V2) and in the anterior part of the lateral occipital-temporal cortex. These sites were both involved in processing tactile information and responsive to visual stimulation. More generally, the present results add to a mounting literature in support of task-sensitive and sensory-independent mechanisms underlying functions like spatial, motion, and self-processing in the brain and extending from higher-level as well as to low-level cortices.
Keywords
Adult, Brain Mapping, Electrocorticography, Female, Humans, Photic Stimulation, Temporal Lobe, Touch, Visual Cortex, Visual Perception, Young Adult, ECoG, High frequency band, Multisensory, Tactile
Pubmed
Web of science
Open Access
Yes
Funding(s)
Swiss National Science Foundation / Projects / 320030_169206
Create date
24/07/2020 14:31
Last modification date
23/01/2021 6:21
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