A toggle switch of visual awareness?. (March 2015)
- Record Type:
- Journal Article
- Title:
- A toggle switch of visual awareness?. (March 2015)
- Main Title:
- A toggle switch of visual awareness?
- Authors:
- Le, Ada
Stojanoski, Bobby B.
Khan, Saniah
Keough, Matthew
Niemeier, Matthias - Abstract:
- Abstract: Major clues to the human brain mechanisms of spatial attention and visual awareness have come from the syndrome of neglect, where patients ignore one half of space. A longstanding puzzle, though, is that neglect almost always comes from right-hemisphere damage, which suggests that the two sides of the brain play distinct roles. But tests of attention in healthy people have revealed only slight differences between the hemispheres. Here we show that major differences emerge if we look at the timing of brain activity in a task optimized to identify attentional functions. Using EEG to map cortical activity on a millisecond timescale, we found transient (20–30 ms) periods of interhemispheric competition, followed by short phases of marked right-sided activity in the ventral attentional network. Our data are the first to show interhemispheric interactions that, much like a toggle switch, quickly allocate neural resources to one or the other hemisphere.
- Is Part Of:
- Cortex. Volume 64(2015)
- Journal:
- Cortex
- Issue:
- Volume 64(2015)
- Issue Display:
- Volume 64, Issue 2015 (2015)
- Year:
- 2015
- Volume:
- 64
- Issue:
- 2015
- Issue Sort Value:
- 2015-0064-2015-0000
- Page Start:
- 169
- Page End:
- 178
- Publication Date:
- 2015-03
- Subjects:
- Attention -- Pseudoneglect -- Right hemisphere -- Interhemispheric competition -- EEG
Neuropsychology -- Periodicals
Nervous system -- Periodicals
Neurology -- Periodicals
Psychophysiology -- Periodicals
Behavior -- Periodicals
Neurology -- Periodicals
612.825 - Journal URLs:
- http://www.sciencedirect.com/science/journal/00109452 ↗
http://www.sciencedirect.com/science/journal/00109452 ↗
http://www.cortex-online.org ↗
http://www.elsevier.com/journals ↗ - DOI:
- 10.1016/j.cortex.2014.09.015 ↗
- Languages:
- English
- ISSNs:
- 0010-9452
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 3477.150000
British Library DSC - BLDSS-3PM
British Library STI - ELD Digital store - Ingest File:
- 5339.xml