Possible involvement of primary motor cortex in mentally simulated movement

Roth, M., Decety, J., Raybaudi, M., Massarelli, R., Delon-Martin, C., Segebarth, C., Morand, S. , Gemignani, A., Décorps, M. and Jeannerod, M. (1996) Possible involvement of primary motor cortex in mentally simulated movement. NeuroReport, 7(7), pp. 1280-1284. (doi: 10.1097/00001756-199605170-00012) (PMID:8817549)

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Abstract

The role of the primary motor cortex (M1) during mental simulation of movement is open to debate. In the present study, functional magnetic resonance imaging (fMRI) signals were measured in normal right-handed subjects during actual and mental execution of a finger-to-thumb opposition task with either the right or the left hand. There were no significant differences between the two hands with either execution or simulation. A significant involvement of contralateral M1 (30% of the activity found during execution) was detected in four of six subjects. Premotor cortex (PM) and the rostral part of the posterior SMA were activated bilaterally during motor imagery. These findings support the hypothesis that motor imagery involves virtually all stages of motor control.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Morand, Dr Stephanie
Authors: Roth, M., Decety, J., Raybaudi, M., Massarelli, R., Delon-Martin, C., Segebarth, C., Morand, S., Gemignani, A., Décorps, M., and Jeannerod, M.
College/School:College of Medical Veterinary and Life Sciences > Institute of Neuroscience and Psychology
Journal Name:NeuroReport
Publisher:Lippincott, Williams & Wilkins
ISSN:0959-4965
ISSN (Online):1473-558X

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