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- Title
Does a Rhythmic Context Have an Effect on Perceptual Weights in Auditory Intensity Processing?
- Authors
Oberfeld, Daniel
- Abstract
The effects of a rhythmic context on auditory intensity processing were studied. Experiment 1 tested the hypothesis that the involuntary temporal direction of attention by a rhythmic context sequence influences the temporal weighting of loudness. Perceptual weight analysis was used to measure the attention directed to individual temporal portions of a longer stimulus by estimating the importance of individual temporal segments for global loudness judgements. A rhythmic context resulted in a sharper temporal weighting profile, but the expected rhythmic pattern of weights was not observed. In Experiment 2, the accuracy for detecting a peak in the temporal loudness profile of a level-fluctuating noise was measured for the level increment presented at expected and unexpected times. The rhythmic context again caused a more pronounced temporal weighting profile. However, the accuracy was neither significantly in- creased for expected target segment positions nor decreased for unexpected target segment positions, relative to the condition without a rhythmic context sequence.
- Subjects
NOISE; SOUND; HEARING; BIOACOUSTICS; AUDITORY pathways
- Publication
Canadian Journal of Experimental Psychology / Revue Canadienne de Psychologie Expérimentale, 2008, Vol 62, Issue 1, p24
- ISSN
1196-1961
- Publication type
Article
- DOI
10.1037/1196-1961.62.1.24