Differential contributions of the two human cerebral hemispheres to action timing
- Rhythmic actions benefit from synchronization with external events. Auditory-paced finger tapping studies indicate the two cerebral hemispheres preferentially control different rhythms. It is unclear whether left-lateralized processing of faster rhythms and right-lateralized processing of slower rhythms bases upon hemispheric timing differences that arise in the motor or sensory system or whether asymmetry results from lateralized sensorimotor interactions. We measured fMRI and MEG during symmetric finger tapping, in which fast tapping was defined as auditory-motor synchronization at 2.5 Hz. Slow tapping corresponded to tapping to every fourth auditory beat (0.625 Hz). We demonstrate that the left auditory cortex preferentially represents the relative fast rhythm in an amplitude modulation of low beta oscillations while the right auditory cortex additionally represents the internally generated slower rhythm. We show coupling of auditory-motor beta oscillations supports building a metric structure. Our findings reveal a strong contribution of sensory cortices to hemispheric specialization in action control.
Author: | Anja Pflug, Florian Gompf, Muthuraman Muthuraman, Sergiu GroppaORCiDGND, Christian KellORCiDGND |
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URN: | urn:nbn:de:hebis:30:3-546079 |
DOI: | https://doi.org/10.7554/eLife.48404 |
Pubmed Id: | https://pubmed.ncbi.nlm.nih.gov/31697640 |
Parent Title (German): | eLife |
Publisher: | eLife Sciences Publications, Ltd |
Place of publication: | Cambridge |
Document Type: | Article |
Language: | English |
Date of Publication (online): | 2019/11/07 |
Date of first Publication: | 2019/11/07 |
Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
Release Date: | 2020/04/08 |
Volume: | 8 |
Issue: | e48404 |
Note: | Copyright Pflug et al. This article is distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use and redistribution provided that the original author and source are credited. |
Note: | Data availability: All data are available for download at https://doi.org/10.5061/dryad.pg4f4qrj6 |
HeBIS-PPN: | 463773381 |
Institutes: | Medizin / Medizin |
Angeschlossene und kooperierende Institutionen / MPI für Hirnforschung | |
Dewey Decimal Classification: | 1 Philosophie und Psychologie / 15 Psychologie / 150 Psychologie |
Sammlungen: | Universitätspublikationen |
Licence (German): | Creative Commons - Namensnennung 4.0 |