Neuronal activity in primate striatum and pallidum related to bimanual motor actions

Neuroreport
Th WannierEric M Rouiller

Abstract

To assess whether striatal and pallidal neurones may contribute to bimanual co-ordination, two macaque monkeys were trained to perform a delayed conditional sequence of co-ordinated pull and grasp movements, executed either bimanually or unimanually. Most of the 58 task-related neurones, recorded from the caudate nucleus, putamen, external and internal divisions of the globus pallidus, exhibited an activity related to the execution of the movements. Only a quarter of neurones displayed preparatory activity. The majority of units exhibited a significant modulation of activity in unimanual trials irrespective of the hand used to perform the task. In bimanual trials, one-third of units exhibited discharge patterns reflecting a bimanual synergy, suggesting a possible role for basal ganglia in inter-limb co-operation.

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Citations

Dec 4, 2004·Learning & Memory·Kenichi KuriyamaMatthew P Walker
Nov 23, 2011·Journal of Visualized Experiments : JoVE·Eric SchmidlinEric M Rouiller
Apr 24, 2007·Brain Research·Eduard KraftBruce G Jenkins
Mar 10, 2015·Neuroscience Research·Jean-François DaneaultChristian Duval

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