Auditory and visual temporal sensitivity: evidence for a hierarchical structure of modality-specific and modality-independent levels of temporal information processing |
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Authors: | Corinne?C?Stauffer Judith?Haldemann Stefan?J?Troche Email author" target="_blank">Thomas?H?RammsayerEmail author |
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Institution: | (1) Institute for Psychology, University of Bern, Muesmattstrasse 45, 3000 Bern 9, Switzerland; |
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Abstract: | The present study investigated modality-specific differences in processing of temporal information in the subsecond range.
For this purpose, participants performed auditory and visual versions of a rhythm perception and three different duration
discrimination tasks to allow for a direct, systematic comparison across both sensory modalities. Our findings clearly indicate
higher temporal sensitivity in the auditory than in the visual domain irrespective of type of timing task. To further evaluate
whether there is evidence for a common modality-independent timing mechanism or for multiple modality-specific mechanisms,
we used structural equation modeling to test three different theoretical models. Neither a single modality-independent timing
mechanism, nor two independent modality-specific timing mechanisms fitted the empirical data. Rather, the data are well described
by a hierarchical model with modality-specific visual and auditory temporal processing at a first level and a modality-independent
processing system at a second level of the hierarchy. |
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Keywords: | |
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