Journal article
Callosotomy patients exhibit temporal uncoupling during continuous bimanual movements
Nature neuroscience, Vol.5(4), pp.376-381
04/2002
DOI: 10.1038/nn822
PMID: 11914724
Abstract
Rhythmic bimanual movements are highly constrained in the temporal domain, with the gestures of the two hands tightly synchronized. Previous studies have implicated a subcortical locus for temporal coupling based on the observation that these constraints persist in callosotomy patients. We now report that such coupling is restricted to movements entailing a discrete event (such as a movement onset). Three callosotomy patients exhibited a striking lack of temporal coupling during continuous movements, with the two hands oscillating at non-identical frequencies. We propose a subcortical locus of temporal coupling for movements involving discrete events. In contrast, synchronization between the hands during continuous movements depends on interhemispheric transmission across the corpus callosum.
Details
- Title: Subtitle
- Callosotomy patients exhibit temporal uncoupling during continuous bimanual movements
- Creators
- Steven W Kennerley - University of California, Berkeley, 3210 Tolman Hall #1650, Berkeley, California 94720, USAJörn DiedrichsenEliot HazeltineAndras SemjenRichard B Ivry
- Resource Type
- Journal article
- Publication Details
- Nature neuroscience, Vol.5(4), pp.376-381
- Publisher
- United States
- DOI
- 10.1038/nn822
- PMID
- 11914724
- ISSN
- 1097-6256
- eISSN
- 1546-1726
- Grant note
- P50 NS17778 / NINDS NIH HHS R01 NS30256 / NINDS NIH HHS
- Language
- English
- Date published
- 04/2002
- Academic Unit
- Psychological and Brain Sciences; Iowa Neuroscience Institute
- Record Identifier
- 9984070613002771
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