期刊
NEUROIMAGE
卷 52, 期 1, 页码 245-251出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.neuroimage.2010.03.081
关键词
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资金
- Heinrich-Heine-University [9772328]
- VolkswagenStiftung [1/80191]
Precise timing as determined by sensorimotor synchronization is crucial for a wide variety of activities. Although it is well-established that musicians show superior timing as compared to non-musicians, the neurophysiological foundations - in particular the underlying functional brain network - remain to be characterized To this end, drummers, professional pianists and non-musicians performed an auditory synchronization task while neuromagnetic activity was measured using a 122-channel whole-head magnetoencephalography (MEG) system The underlying functional brain network was determined using the beamformer approach Dynamic Imaging of Coherent Sources (DICS) Behaviorally, drummers performed less variably than non-musicians Neuromagnetic analysis revealed a cerebello-thalamo-cortical network in all subjects comprising bilateral primary sensorimotor cortices (S1/M1), contralateral supplementary motor and premotor regions (SMA and PMC), thalamus, posterior parietal cortex (PPC). ipsilateral cerebellum and bilateral auditory cortices Stronger PMC-thalamus and PPC-thalamus interactions at alpha and beta frequencies were evident in drummers as compared to non-musicians In professional pianists stronger PMC-thalamus interaction as compared to non-musicians at beta frequency occurred The present data suggest that precise timing is associated with increased functional interaction within a PMC-thalamus-PPC network. The PMC-thalamus connectivity at beta frequency might be related to musical expertise, whereas the PPC-thalamus interaction might have specific relevance for precise timing (C) 2010 Elsevier Inc All rights reserved
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