| Lateralisation of non-metric rhythm. | |
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MedLine Citation:
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PMID: 21424982 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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There are contradictory results on lateralisation and localisation of rhythm processing. Our aim was to test whether there is a hemispheric dissociation of metric and non-metric rhythm processing. We created a non-metric rhythm stimulus without a sense of metre and we measured brain activities during passive rhythm perception. A total of 11 healthy, right-handed, native female Hungarian speakers aged 21.3 ± 1.1 were investigated by functional magnetic resonance imaging (fMRI) using a 3T MR scanner. The experimental acoustic stimulus consisted of comprehensive sentences transformed to Morse code, which represent a non-metric rhythm with irregular perceptual accent structure. Activations were found in the right hemisphere, in the posterior parts of the right-sided superior and middle temporal gyri and temporal pole as well as in the orbital part of the right inferior frontal gyrus. Additional activation appeared in the left-sided superior temporal region. Our study suggests that non-metric rhythm with irregular perceptual accents structure is confined to the right hemisphere. Furthermore, a right-lateralised fronto-temporal network extracts the continuously altering temporal structure of the non-metric rhythm. |
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Authors:
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R A Horvath; A Schwarcz; M Aradi; T Auer; N Feher; N Kovacs; T Tenyi; C Szalay; G Perlaki; G Orsi; S Komoly; T Doczi; F G Woermann; Cs Gyimesi; J Janszky |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-3-21 |
Journal Detail:
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Title: Laterality Volume: - ISSN: 1464-0678 ISO Abbreviation: - Publication Date: 2011 Mar |
Date Detail:
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Created Date: 2011-3-22 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9609064 Medline TA: Laterality Country: - |
Other Details:
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Languages: ENG Pagination: 1-16 Citation Subset: - |
Affiliation:
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Epilepsy Center Bethel, Bielefeld, Germany. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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