Projects per year
Abstract
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.
Original language | English |
---|---|
Pages (from-to) | 72-99 |
Number of pages | 28 |
Journal | Cognitive Neuropsychology |
Volume | 27 |
Issue number | 1 |
DOIs | |
Publication status | Published - 1 Jan 2010 |
Keywords
- Feature binding
- Motion
- Visual search
- Parietal cortex
- Attention
Fingerprint
Dive into the research topics of 'Deficits in visual search for conjunctions of motion and form after parietal damage but with spared hMT+/V5'. Together they form a unique fingerprint.Projects
- 2 Finished
-
Segmentation in 4D visual search
Braithwaite, J. & Humphreys, G.
Biotechnology & Biological Sciences Research Council
1/07/09 → 31/12/12
Project: Research Councils
-
The Neural Architecture of Primate Visuospatial Attention
Humphreys, G.
Biotechnology & Biological Sciences Research Council
1/10/04 → 29/02/08
Project: Research Councils