Audiospatial integration.
A method to examine audiospatial integration was developed through studies of normal and brain-injured patients. The method used a sound source sequentially outlining a spatial pattern within an array of 100 loudspeakers. For 48 subjects tested with this method, the presence or absence of visual cues had no effect in audiospatial processing. Eye movements also did not match the perceived sound patterns. Significantly higher hit rates were obtained by placing the panel of loudspeakers in front, behind or above the subject rather than on the left or right. These differences were observed with involuntary but not with voluntary head-fixation. Theoretical concepts of audiospatial processing are discussed.
D000161:Acoustic Stimulation; D000293:Adolescent; D000328:Adult; D001307:Auditory Perception; D001925:Brain Damage, Chronic / Q000523:psychology*; D004292:Dominance, Cerebral; D004585:Electrooculography; D005260:Female; D006801:Humans; D008297:Male; D013017:Sound Localization; D014796:Visual Perception