Attenuation of neural responses in primary visual cortex during the attentional blink

Williams, Mark A., Visser, Troy A. W., Cunnington, Ross and Mattingley, Jason B. (2008) Attenuation of neural responses in primary visual cortex during the attentional blink. The Journal of Neuroscience, 28 39: 9890-9894. doi:10.1523/JNEUROSCI.3057-08.2008

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Author Williams, Mark A.
Visser, Troy A. W.
Cunnington, Ross
Mattingley, Jason B.
Title Attenuation of neural responses in primary visual cortex during the attentional blink
Journal name The Journal of Neuroscience   Check publisher's open access policy
ISSN 0207-6474
1529-2401
Publication date 2008-09-24
Year available 2008
Sub-type Article (original research)
DOI 10.1523/JNEUROSCI.3057-08.2008
Open Access Status File (Publisher version)
Volume 28
Issue 39
Start page 9890
End page 9894
Total pages 5
Editor John H .R. Maunsell
Place of publication Washington, United States
Publisher Society for Neuroscience
Collection year 2009
Language eng
Subject C1
170101 Biological Psychology (Neuropsychology, Psychopharmacology, Physiological Psychology)
970117 Expanding Knowledge in Psychology and Cognitive Sciences
Abstract Information-processing bottlenecks are characteristic of many cognitive and neural systems. One such bottleneck is revealed by tasks in which rapidly successive stimulus events must be reported. Here, observers missed the second of two visual targets if it occurred within 700 ms of the first [an "attentional blink" (AB)], even though this second target could be reported accurately when the first item was ignored. Isolating neural responses to such rapid events has proven difficult because current magnetic resonance imaging methods rely on relatively sluggish changes in the brain's physiological response to sensory inputs. Here, we overcame this limitation by presenting successive visual targets at different spatial locations, thereby exploiting the retinotopic organization of early cortical visual areas to distinguish neural activity associated with successive target events. We show that neural activity in primary visual cortex is significantly modulated during the AB, and that this activity mirrors behavioral measures of target identification accuracy. The findings suggest that the neural signature of perceptual suppression during processing of rapidly successive stimuli is evident at the earliest stages of cortical sensory processing.
Keyword attention
attentional blink
temporal selection
fMRI
vision
human
Q-Index Code C1
Q-Index Status Confirmed Code

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2009 Higher Education Research Data Collection
Queensland Brain Institute Publications
 
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Citation counts: TR Web of Science Citation Count  Cited 21 times in Thomson Reuters Web of Science Article | Citations
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Created: Fri, 06 Mar 2009, 13:18:30 EST by Debra McMurtrie on behalf of Queensland Brain Institute