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ERIC Number: EJ860071
Record Type: Journal
Publication Date: 2009-Aug
Pages: 14
Abstractor: As Provided
Reference Count: 46
ISSN: ISSN-0096-1523
Covert Auditory Spatial Orienting: An Evaluation of the Spatial Relevance Hypothesis
Roberts, Katherine L.; Summerfield, A. Quentin; Hall, Deborah A.
Journal of Experimental Psychology: Human Perception and Performance, v35 n4 p1178-1191 Aug 2009
The spatial relevance hypothesis (J. J. McDonald & L. M. Ward, 1999) proposes that covert auditory spatial orienting can only be beneficial to auditory processing when task stimuli are encoded spatially. We present a series of experiments that evaluate 2 key aspects of the hypothesis: (a) that "reflexive activation of location-sensitive neurons is not sufficient to produce attentional facilitation" and (b) that "any task constraint that makes space important for the listener will produce auditory spatial cue effects" (p. 1236). Experiment 1 showed significant reflexive-orienting benefits on a nonspatial task, refuting the first claim. However, Experiments 2 to 4 reveal that informative spatial cues can improve performance on a nonspatial task, consistent with the second claim. Auditory spatial-cue benefits found with nonspatial tasks appear smaller and less reliable than those found in visual spatial-orienting studies, possibly due to differences in the coding of spatial information in vision and audition. The final experiments consider the mechanisms by which auditory spatial orienting might facilitate auditory processing and provide tentative evidence that attention enhances processing at one ear rather than influencing neurons tuned to the attended location. (Contains 2 footnotes, 4 tables and 4 figures.)
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A