Baumann, Oliver and Greenlee, Mark W. (2007) Neural correlates of coherent audiovisual motion perception. CEREBRAL CORTEX, 17 (6). pp. 1433-1443. ISSN 1047-3211,
Full text not available from this repository. (Request a copy)Abstract
Real-life moving objects are often detected by multisensory cues. We investigated the cortical activity associated with coherent visual motion perception in the presence of a stationary or moving auditory noise source using functional magnetic resonance imaging. Twelve subjects judged episodes of 5-s random-dot motion containing either no (0%) or abundant (16%) coherent direction information. Auditory noise was presented with the displayed visual motion that was moving in phase, was moving out-of-phase, or was stationary. Subjects judged whether visual coherent motion was present, and if so, whether the auditory noise source was moving in phase, was moving out-of-phase, or was not moving. Performance was greatest for a moving sound source that was in phase with the visual coherent dot motion compared with when it was in antiphase. A random-effects analysis revealed that auditory motion activated extended regions in both cerebral hemispheres in the superior temporal gyrus (STG), with a right-hemispheric preponderance. Combined audiovisual motion led to activation clusters in the STG, the supramarginal gyrus, the superior parietal lobule, and the cerebellum. The size of the activated regions was substantially larger than that evoked by either visual or auditory motion alone. The congruent audiovisual motion evoked the most extensive activation pattern, exhibiting several exclusively activated subregions.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | SUPERIOR TEMPORAL SULCUS; SPATIAL WORKING-MEMORY; AUDITORY-CORTEX; PARIETAL CORTEX; PREMOTOR CORTEX; SELECTIVE ATTENTION; POSTERIOR PARIETAL; SENSORY MODALITIES; MOVING TARGETS; SINGLE NEURONS; audiovisual integration; brain imaging; coherence; multimodal; superior temporal gyrus; supramarginal gyrus |
| 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: | 04 Dec 2020 07:46 |
| Last Modified: | 04 Dec 2020 07:46 |
| URI: | https://pred.uni-regensburg.de/id/eprint/32642 |
Actions (login required)
 |
View Item |
