کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4345202 1296715 2011 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The effect of musical experience on hemispheric lateralization in musical feature processing
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب (عمومی)
پیش نمایش صفحه اول مقاله
The effect of musical experience on hemispheric lateralization in musical feature processing
چکیده انگلیسی

Music consists of a variety of spectral and temporal features. Generally, brain processing of these features is reported as being right hemisphere dominant. However, there are contradicting results as to whether musical experience affects hemispheric laterality or not. In the present study, we investigated the effect of musical experience on hemispheric lateralization of musical feature processing using magnetoencephalography (MEG). Mismatch fields (MMFs) were measured from 8 musicians and 8 nonmusicians in oddball tasks with four different musical features, including pitch, chord, timbre and rhythm. Regardless of the features, the MMFs showed right-hemispheric dominance in nonmusicians, whereas musicians showed symmetrical MMF amplitudes in both hemispheres. The electrical activity around the auditory cortex to the MMFs also supported the right-hemispheric dominance in nonmusicians and bilateral activation in musicians. Voxel-based morphometry did not detect any group differences around the auditory cortices. These results suggest that musical training changes the hemispheric roles for musical feature processing in the pre-attentive stage, and this functional alteration can occur without apparent anatomical changes.


► Brain activity was measured by MEG during four different kinds of oddball task.
► Nonmusicians showed right-hemispheric dominance in brain activity.
► Musicians showed bilateral symmetry in brain activity.
► Musical training shifts functional laterality in musical feature processing.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Neuroscience Letters - Volume 496, Issue 2, 1 June 2011, Pages 141–145
نویسندگان
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