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Spatial Discrimination of Sound Sources in the Median Plane: The Effect of a Preceding Noise
Author: Getzmann, Stephan
Source: Acta Acustica united with Acustica, Volume 90, Number 6, November/December 2004 , pp. 1185-1191(7)
Publisher: S. Hirzel Verlag
Abstract:
The effect of a preceding noise on the spatial discrimination of two subsequent, successively presented target sounds was tested in the median plane. Subjects judged the vertical position of the second target sound relative to the first in a two-alternative forced- choice paradigm. The first target sound was randomly presented either at the same position as a preceding 3-s noise or at a different position. In comparison with a control condition, in which no noise preceded, the spatial discrimination of the second target was improved in the first condition, but was worsened in the second. An additionally presented visual stimulus that acted as a spatial cue to the target position had no significant influence on performance. The improvement in discrimination is consistent with earlier findings in sound lateralization. It may be associated with an auditory contrast effect recently reported for vertical sound localization.Document Type: Research article
Publication date: 2004-11-01
- Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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