期刊
COGNITIVE NEUROPSYCHOLOGY
卷 27, 期 1, 页码 72-99出版社
ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD
DOI: 10.1080/02643294.2010.497727
关键词
Parietal cortex; Feature binding; Attention; Visual search; Motion
资金
- European Union
- MRC (Medical Research Council, UK)
- BBSRC [BB/G010919/1] Funding Source: UKRI
- MRC [G0601568] Funding Source: UKRI
- Biotechnology and Biological Sciences Research Council [BBS/B/16429, BB/G010919/1] Funding Source: researchfish
- Medical Research Council [G0601568] Funding Source: researchfish
It has been argued that area hMT+/V5 in humans acts as a motion filter, enabling targets defined by a conjunction of motion and form to be efficiently selected. We present data indicating that (a) damage to parietal cortex leads to a selective problem in processing motion-form conjunctions, and (b) that the presence of a structurally and functional intact hMT+/V5 is not sufficient for efficient search for motion-form conjunctions. We suggest that, in addition to motion-processing areas (e.g., hMT+/V5), the posterior parietal cortex is necessary for efficient search with motion-form conjunctions, so that damage to either brain region may bring about deficits in search. We discuss the results in terms of the involvement of the posterior parietal cortex in the top-down guidance of search or in the binding of motion and form information.
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