Rutschmann, Roland M. and Greenlee, Mark W. (2004) BOLD response in dorsal areas varies with relative disparity level. NEUROREPORT, 15 (4). pp. 615-619. ISSN 0959-4965
Full text not available from this repository. (Request a copy)Abstract
Using fMRI, we explored cortical responses to dichoptically presented random-dot (RD) stimuli which formed a checkerboard by means of horizontal disparity (Julesz). Depth reversals occurred every 800 ms by appropriate horizontal shifting of a subset of the RD pattern. We compared cortical blood oxygen level dependent (BOLD) responses of five subjects under conditions with and without binocular disparity. The results indicate that only extrastriate, but not striate, areas responded more to the stimuli with binocular disparity. We further found that the BOLD signal increased with increasing disparity level only in dorsal areas of occipito-parietal and prefrontal cortex. These results suggest that the fMRI BOLD response can reflect the processing of relative binocular disparity in extrastriate cortex.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | INFERIOR TEMPORAL CORTEX; HUMAN BRAIN; BINOCULAR DISPARITY; DEPTH-PERCEPTION; VISUAL AREAS; MOTION; STEREOPSIS; NEURONS; SHAPE; REPRESENTATION; binocular disparity; depth perception; functional magnetic resonance imaging; visual cortex |
| Subjects: | 100 Philosophy & psychology > 150 Psychology |
| Divisions: | Human Sciences > Institut für Psychologie > Lehrstuhl für Psychologie I (Allgemeine Psychologie I und Methodenlehre) - Prof. Dr. Mark W. Greenlee |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 26 Jul 2021 08:22 |
| Last Modified: | 26 Jul 2021 08:22 |
| URI: | https://pred.uni-regensburg.de/id/eprint/37865 |
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