Temporal segmentation of repeating auditory patterns.

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Abstract
Investigated the identification of repeating auditory patterns in 2 experiments with 8 university summer school students each. In some cases, the pauses compatibly segmented the pattern elements into stable temporal units (an 8-element pattern segmented by 2). In other cases, the pauses incompatibly segmented the pattern elements into temporal units that varied across repetitions (an 8-element pattern segmented by 3). Compatible segmentation produced excellent identification, with Ss learning the pattern by linking temporal units. Incompatible segmentation produced poor identification. Ss learned these patterns by using a run of identical elements as an anchor and learned successive elements during pattern repetitions. However, the end of the pattern was determined by temporal pauses, so that Ss described an 8-element pattern segmented by 3 or 9 as a 9-element pattern and a 9-element pattern segmented by 2 or 8 as an 8-element pattern. Findings indicate that periodic temporal segmentation yielded pattern perception based on the structure of the temporal grouping rather than on the structure of the pattern elements. (PsycINFO Database Record (c) 2006 APA, all rights reserved)

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