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http://bura.brunel.ac.uk/handle/2438/6534
Title: | Functional imaging reveals working memory and attention interact to produce the attentional blink |
Authors: | Johnston, SJ Linden, DEJ Shapiro, KL |
Keywords: | Adult;Attention;Attentional blink;Brain mapping;Female;Humans |
Issue Date: | 2012 |
Publisher: | Massachusetts Institute of Technology Press |
Citation: | Journal of Cognitive Neuroscience, 24(1): 28 - 38, Jan 2012 |
Abstract: | If two centrally presented visual stimuli occur within approximately half a second of each other, the second target often fails to be reported correctly. This effect, called the attentional blink (AB; Raymond, J. E., Shapiro, K. L., & Arnell, K. M. Temporary suppression of visual processing in an RSVP task: An attentional blink? Journal of Experimental Psychology, Human Perception and Performance, 18, 849-860, 1992], has been attributed to a resource "bottleneck," likely arising as a failure of attention during encoding into or retrieval from visual working memory (WM). Here we present participants with a hybrid WM-AB study while they undergo fMRI to provide insight into the neural underpinnings of this bottleneck. Consistent with a WM-based bottleneck account, fronto-parietal brain areas exhibited a WM load-dependent modulation of neural responses during the AB task. These results are consistent with the view that WM and attention share a capacity-limited resource and provide insight into the neural structures that underlie resource allocation in tasks requiring joint use of WM and attention. |
Description: | Copyright @ 2012 Massachusetts Institute of Technology Press |
URI: | http://www.mitpressjournals.org/doi/abs/10.1162/jocn_a_00054 http://bura.brunel.ac.uk/handle/2438/6534 |
DOI: | http://dx.doi.org/10.1162/jocn_a_00054 |
ISSN: | 0898-929X |
Appears in Collections: | Psychology Dept of Life Sciences Research Papers |
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