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Separating distractor rejection and target detection in posterior parietal cortex - an event-related fMRI study of visual marking
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Pollmann, S., Weidner, R., Humphreys, Glyn W., Olivers, Christian N. L., Müller, K., Lohmann, G., Wiggins, C. J. and Watson, Derrick G. . (2003) Separating distractor rejection and target detection in posterior parietal cortex - an event-related fMRI study of visual marking. Neuroimage, Vol.18 (No.2). pp. 310-323. ISSN 1053-8119
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Official URL: http://dx.doi.org/10.1016/S1053-8119(02)00036-8
Abstract
Successful survival in a competitive world requires the employment of efficient procedures for selecting new in preference to old information. Recent behavioral studies have shown that efficient selection is dependent not only on properties of new stimuli but also on an intentional bias that we can introduce against old stimuli. Event-related analysis of functional magnetic resonance imaging data from a task involving visual search across time as well as space indicates that the superior parietal lobule is specifically involved in processes leading to the efficient segmentation of old from new items, whereas the temporoparietal junction area and the ascending limb of the right intraparietal sulcus are involved in the detection of salient new items and in response preparation. The study provides evidence for the functional segregration of brain regions within the posterior parietal lobe. (C) 2003 Elsevier Science (USA). All rights reserved.
| Item Type: | Journal Article |
|---|---|
| Subjects: | Q Science > QP Physiology R Medicine R Medicine > RC Internal medicine > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry |
| Divisions: | Faculty of Science > Psychology |
| Library of Congress Subject Headings (LCSH): | Visual perception, Parietal lobes, Cerebral cortex, Attention (Psychology), Human information processing |
| Journal or Publication Title: | Neuroimage |
| Publisher: | Academic Press Inc Elsevier Science |
| ISSN: | 1053-8119 |
| Date: | February 2003 |
| Volume: | Vol.18 |
| Number: | No.2 |
| Number of Pages: | 14 |
| Page Range: | pp. 310-323 |
| Identification Number: | 10.1016/S1053-8119(02)00036-8 |
| Status: | Peer Reviewed |
| Publication Status: | Published |
| Funder: | Deutsche Forschungsgemeinschaft (DFG), Medical Research Council (Great Britain) (MRC) |
| Grant number: | SCHR 375/8-1 (DFG); G9623474 (MRC) |
| URI: | http://wrap.warwick.ac.uk/id/eprint/10002 |
Data sourced from Thomson Reuters' Web of Knowledge
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