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A comparison of the effects of differences in temporal gating and ear of presentation on profile discrimination

Hill, N.I. and Bailey, P.J. (2002) A comparison of the effects of differences in temporal gating and ear of presentation on profile discrimination. Perception, 31 (11). pp. 1395-1402. ISSN 0301-0066

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Published Version: http://dx.doi.org/10.1068/p3124

Abstract

The aim of the study was to examine the effects of differences in temporal gating and ear of presentation (both separately and in combination) on listeners' ability to detect an increment in the level of a 1 kHz component (the target) relative to that of four spectrally flanking components. The flanking components were always presented to the listeners' right ear, while the target component was either presented to the same ear (monaural presentation) or to the left ear (dichotic presentation). Similarly, the target and flanking components were either gated on and off at the same time (synchronous presentation), or else the target component began 100 ms before and terminated 100 ms after the four flanking components (asynchronous presentation). On average, thresholds were lowest in the synchronous, monaural condition, and highest in the two asynchronous conditions. Ear differences alone did result in elevated thresholds for most listeners. However, combining differences in gating and ear of presentation produced thresholds that were indistinguishable from those obtained when gating differences alone were employed. These results are consistent with the suggestion that differences in temporal gating lead to more complete segregation of concurrent frequency components than differences in spatial location.

Item Type: Article
Academic Units: The University of York > Psychology (York)
Depositing User: York RAE Import
Date Deposited: 27 Feb 2009 12:04
Last Modified: 27 Feb 2009 12:04
Published Version: http://dx.doi.org/10.1068/p3124
Status: Published
Publisher: Pion Ltd
Identification Number: 10.1068/p3124
URI: http://eprints.whiterose.ac.uk/id/eprint/7175

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