Slowing of Motor Imagery after a Right Hemispheric Stroke
The temporal congruence between real and imagined movements is not always preserved after stroke. We investigated the dependence of temporal incongruence on the side of the hemispheric lesion and its link with working memory deficits. Thirty-seven persons with a chronic stroke after a right or left...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2012-01-01
|
| Series: | Stroke Research and Treatment |
| Online Access: | http://dx.doi.org/10.1155/2012/297217 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832558885025611776 |
|---|---|
| author | Francine Malouin Carol L. Richards Anne Durand |
| author_facet | Francine Malouin Carol L. Richards Anne Durand |
| author_sort | Francine Malouin |
| collection | DOAJ |
| description | The temporal congruence between real and imagined movements is not always preserved after stroke. We investigated the dependence of temporal incongruence on the side of the hemispheric lesion and its link with working memory deficits. Thirty-seven persons with a chronic stroke after a right or left hemispheric lesion (RHL : n=19; LHL : n=18) and 32 age-matched healthy persons (CTL) were administered a motor imagery questionnaire, mental chronometry and working memory tests. In contrast to persons in the CTL group and LHL subgroup, persons with a RHL had longer movement times during the imagination than the physical execution of stepping movements on both sides, indicating a reduced ability to predict movement duration (temporal incongruence). While motor imagery vividness was good in both subgroups, the RHL group had greater visuospatial working memory deficits. The bilateral slowing of stepping movements in the RHL group indicates that temporal congruence during motor imagery is impaired after a right hemispheric stroke and is also associated with greater visuospatial working memory deficits. Findings emphasize the need to use mental chronometry to control for movement representation during motor imagery training and may indicate that mental practice through motor imagery will have limitations in patients with a right hemispheric stroke. |
| format | Article |
| id | doaj-art-ac9bbdcba18841998eedf1bfa4f742d0 |
| institution | Kabale University |
| issn | 2090-8105 2042-0056 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Stroke Research and Treatment |
| spelling | doaj-art-ac9bbdcba18841998eedf1bfa4f742d02025-02-03T01:31:18ZengWileyStroke Research and Treatment2090-81052042-00562012-01-01201210.1155/2012/297217297217Slowing of Motor Imagery after a Right Hemispheric StrokeFrancine Malouin0Carol L. Richards1Anne Durand2Department of Rehabilitation, Laval University and Center for Interdisciplinary Research in Rehabilitation and Social Integration (CIRRIS), IRDPQ 525 Boulevard Hamel East, Quebec City, QC, G1M 2S8, CanadaDepartment of Rehabilitation, Laval University and Center for Interdisciplinary Research in Rehabilitation and Social Integration (CIRRIS), IRDPQ 525 Boulevard Hamel East, Quebec City, QC, G1M 2S8, CanadaInstitut de Réadaptation en Déficience Physique de Québec, 525 Boulevard Hamel East, Quebec City, QC, G1M 2S8, CanadaThe temporal congruence between real and imagined movements is not always preserved after stroke. We investigated the dependence of temporal incongruence on the side of the hemispheric lesion and its link with working memory deficits. Thirty-seven persons with a chronic stroke after a right or left hemispheric lesion (RHL : n=19; LHL : n=18) and 32 age-matched healthy persons (CTL) were administered a motor imagery questionnaire, mental chronometry and working memory tests. In contrast to persons in the CTL group and LHL subgroup, persons with a RHL had longer movement times during the imagination than the physical execution of stepping movements on both sides, indicating a reduced ability to predict movement duration (temporal incongruence). While motor imagery vividness was good in both subgroups, the RHL group had greater visuospatial working memory deficits. The bilateral slowing of stepping movements in the RHL group indicates that temporal congruence during motor imagery is impaired after a right hemispheric stroke and is also associated with greater visuospatial working memory deficits. Findings emphasize the need to use mental chronometry to control for movement representation during motor imagery training and may indicate that mental practice through motor imagery will have limitations in patients with a right hemispheric stroke.http://dx.doi.org/10.1155/2012/297217 |
| spellingShingle | Francine Malouin Carol L. Richards Anne Durand Slowing of Motor Imagery after a Right Hemispheric Stroke Stroke Research and Treatment |
| title | Slowing of Motor Imagery after a Right Hemispheric Stroke |
| title_full | Slowing of Motor Imagery after a Right Hemispheric Stroke |
| title_fullStr | Slowing of Motor Imagery after a Right Hemispheric Stroke |
| title_full_unstemmed | Slowing of Motor Imagery after a Right Hemispheric Stroke |
| title_short | Slowing of Motor Imagery after a Right Hemispheric Stroke |
| title_sort | slowing of motor imagery after a right hemispheric stroke |
| url | http://dx.doi.org/10.1155/2012/297217 |
| work_keys_str_mv | AT francinemalouin slowingofmotorimageryafterarighthemisphericstroke AT carollrichards slowingofmotorimageryafterarighthemisphericstroke AT annedurand slowingofmotorimageryafterarighthemisphericstroke |