TY  - JOUR
A1  - Pflug, Anja
A1  - Gompf, Florian
A1  - Muthuraman, Muthuraman
A1  - Groppa, Sergiu
A1  - Kell, Christian Alexander
T1  - Differential contributions of the two human cerebral hemispheres to action timing
T2  - eLife
N2  - 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.
Y1  - 2019
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/54607
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-546079
N1  - 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.
N1  - Data availability: All data are available for download at https://doi.org/10.5061/dryad.pg4f4qrj6
VL  - 8
IS  - e48404
PB  - eLife Sciences Publications, Ltd
CY  - Cambridge
ER  -