NDLI: Decomposing rhythm processing: electroencephalography of perceived and self-imposed rhythmic patterns

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Decomposing rhythm processing: electroencephalography of perceived and self-imposed rhythmic patterns

Content Provider	PubMed Central
Author	Schaefer, Rebecca S. Vlek, Rutger J. Peter, Desain
Abstract	Perceiving musical rhythms can be considered a process of attentional chunking over time, driven by accent patterns. A rhythmic structure can also be generated internally, by placing a subjective accent pattern on an isochronous stimulus train. Here, we investigate the event-related potential (ERP) signature of actual and subjective accents, thus disentangling low-level perceptual processes from the cognitive aspects of rhythm processing. The results show differences between accented and unaccented events, but also show that different types of unaccented events can be distinguished, revealing additional structure within the rhythmic pattern. This structure is further investigated by decomposing the ERP into subcomponents, using principal component analysis. In this way, the processes that are common for perceiving a pattern and self-generating it are isolated, and can be visualized for the tasks separately. The results suggest that top-down processes have a substantial role in the cerebral mechanisms of rhythm processing, independent of an externally presented stimulus.
Related Links	http://dx.doi.org/10.1007/s00426-010-0293-4
Ending Page	106
Page Count	12
Starting Page	95
File Format	PDF
ISSN	03400727
e-ISSN	14302772
Journal	Psychological Research
Issue Number	2
Volume Number	75
Language	English
Publisher	Springer-Verlag
Publisher Date	2011-03-01
Access Restriction	Open
Rights Holder	Springer-Verlag
Subject Keyword	Experimental and Cognitive Psychology Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Experimental and Cognitive Psychology Arts and Humanities Medicine Developmental and Educational Psychology

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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