Enlighten
Research publications by members of the University of Glasgow
home > services > Enlighten

The co-ordination of bimanual prehension movements in a centrally deafferented patient

Jackson, G.M., Jackson, S.R., Husain, M., Harvey, M., Krämer, T., and Dow, L. (2000) The co-ordination of bimanual prehension movements in a centrally deafferented patient. Brain, 123 (2). pp. 380-393.

Full text not currently available from Enlighten.

Abstract

Many everyday tasks require that we use our hands co-operatively, for example, when unscrewing a jar. For tasks where both hands are required to perform the same action, a common motor programme can be used. However, where each hand needs to perform a different action, some degree of independent control of each hand is required. We examined the coordination of bimanual movement kinematics in a female patient recovering from a cerebrovascular accident involving anterior regions of the parietal lobe of the right hemisphere, which resulted in a dense hemianaesthesia of her left arm. Our results indicate that unimanual movements executed by our patient using her non-sensate hand are relatively unimpaired. In contrast, during bimanual movements, reaches executed by our patient using her non-sensate hand show gross directional errors and spatiotemporal irregularities, including the inappropriate coupling of movement velocities. These data are discussed with reference to the role played by limb proprioception in the planning and control of prehension movements.

Item Type:Article
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Harvey, Dr Monika
Authors: Jackson, G.M., Jackson, S.R., Husain, M., Harvey, M., Krämer, T., and Dow, L.
College/School:College of Science and Engineering > School of Psychology
Journal Name:Brain

University Staff: Request a correction | Enlighten Editors: Update this record