The contributions of auditory and cognitive factors to age-dependent differences in auditory spatial attention were investigated. In conditions of real spatial separation, the target sentence was presented from a central location and competing sentences were presented from left and right locations. In conditions of simulated spatial separation, different apparent spatial locations of the target and competitors were induced using the precedence effect. The identity of the target was cued by a callsign presented either prior to or following each target sentence, and the probability that the target would be presented at the three locations was specified at the beginning of each block. Younger and older adults with normal hearing sensitivity below completed all 16 conditions (2-spatial separation method 2-callsign conditions 4-probability conditions). Overall, younger adults performed better than older adults. For both age groups, performance improved with target location certainty, with a priori target cueing, and when location differences were real rather than simulated. For both age groups, the contributions of natural spatial cues were most pronounced when the target occurred at “unlikely” spatial listening locations. This suggests that both age groups benefit similarly from richer acoustical cues and a priori information in difficult listening environments.
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August 2008
August 01 2008
The effect of age on auditory spatial attention in conditions of real and simulated spatial separation
Gurjit Singh;
Gurjit Singh
Department of Psychology,
University of Toronto
, 3359 Mississauga Road North, Mississauga, Ontario L5L 1C6, Canada and Toronto Rehabilitation Institute, University of Toronto
, 3359 Mississauga Road North, Mississauga, Ontario L5L 1C6, Canada
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M. Kathleen Pichora-Fuller;
M. Kathleen Pichora-Fuller
a)
Department of Psychology,
University of Toronto
, 3359 Mississauga Road North, Mississauga, Ontario L5L 1C6, Canada and Toronto Rehabilitation Institute, University of Toronto
, 3359 Mississauga Road North, Mississauga, Ontario L5L 1C6, Canada
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Bruce A. Schneider
Bruce A. Schneider
Department of Psychology,
University of Toronto
, 3359 Mississauga Road North, Mississauga, Ontario L5L 1C6, Canada
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a)
Author to whom correspondence should be addressed. Tel.: 905-828-3865. FAX: 905-569-4326. Electronic mail: [email protected]
J. Acoust. Soc. Am. 124, 1294–1305 (2008)
Article history
Received:
May 29 2007
Accepted:
May 29 2008
Citation
Gurjit Singh, M. Kathleen Pichora-Fuller, Bruce A. Schneider; The effect of age on auditory spatial attention in conditions of real and simulated spatial separation. J. Acoust. Soc. Am. 1 August 2008; 124 (2): 1294–1305. https://doi.org/10.1121/1.2949399
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