Biases of Spatial Attention in Vision and Audition

Autor/inn/en	Sosa, Yamaya; Teder-Salejarvi, Wolfgang A.; McCourt, Mark E.
Titel	Biases of Spatial Attention in Vision and Audition
Quelle	In: Brain and Cognition, 73 (2010) 3, S.229-235 (7 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0278-2626
DOI	10.1016/j.bandc.2010.05.007
Schlagwörter	Auditory Stimuli; Intervals; Spatial Ability; Attention; Visual Perception; Observation; Lateral Dominance; Brain Hemisphere Functions; Cognitive Processes; Correlation + Suchen Sie Ihr Suchwort? Auditive Stimulation; Räumliches Vorstellungsvermögen; Aufmerksamkeit; Visuelle Wahrnehmung; Beobachtung; Hemisphärendominanz; Cognitive process; Kognitiver Prozess; Korrelation
Abstract	Neurologically normal observers misperceive the midpoint of horizontal lines as systematically "leftward" of veridical center, a phenomenon known as pseudoneglect. Pseudoneglect is attributed to a tonic asymmetry of visuospatial attention favoring left hemispace. Whereas visuospatial attention is biased toward left hemispace, some evidence suggests that audiospatial attention may possess a right hemispatial bias. If spatial attention is supramodal, then the leftward bias observed in visual line bisection should also be expressed in auditory bisection tasks. If spatial attention is modality specific then bisection errors in visual and auditory spatial judgments are potentially dissociable. Subjects performed a bisection task for spatial intervals defined by auditory stimuli, as well as a tachistoscopic visual line bisection task. Subjects showed a significant "leftward" bias in the visual line bisection task and a significant "rightward" bias in the auditory interval bisection task. Performance across both tasks was, however, significantly positively correlated. These results imply the existence of both modality specific and supramodal attentional mechanisms where visuospatial attention has a prepotent leftward vector and audiospatial attention has a prepotent "rightward" vector of attention. In addition, the biases of both visuospatial and audiospatial attention are correlated. (Contains 5 figures.) (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10