Left-Deviating Prism Adaptation in Left Neglect Patient: Reflexions on a Negative Result
Adaptation to right-deviating prisms is a promising intervention for the rehabilitation of patients with left spatial neglect. In order to test the lateral specificity of prism adaptation on left neglect, the present study evaluated the effect of left-deviating prism on straight-ahead pointing movem...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | Neural Plasticity |
| Online Access: | http://dx.doi.org/10.1155/2012/718604 |
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| author | Jacques Luauté Sophie Jacquin-Courtois Jacinta O'Shea Laure Christophe Gilles Rode Dominique Boisson Yves Rossetti |
| author_facet | Jacques Luauté Sophie Jacquin-Courtois Jacinta O'Shea Laure Christophe Gilles Rode Dominique Boisson Yves Rossetti |
| author_sort | Jacques Luauté |
| collection | DOAJ |
| description | Adaptation to right-deviating prisms is a promising intervention for the rehabilitation of patients with left spatial neglect. In order to test the lateral specificity of prism adaptation on left neglect, the present study evaluated the effect of left-deviating prism on straight-ahead pointing movements and on several classical neuropsychological tests in a group of five right brain-damaged patients with left spatial neglect. A group of healthy subjects was also included for comparison purposes. After a single session of exposing simple manual pointing to left-deviating prisms, contrary to healthy controls, none of the patients showed a reliable change of the straight-ahead pointing movement in the dark. No significant modification of attentional paper-and-pencil tasks was either observed immediately or 2 hours after prism adaptation. These results suggest that the therapeutic effect of prism adaptation on left spatial neglect relies on a specific lateralized mechanism. Evidence for a directional effect for prism adaptation both in terms of the side of the visuomanual adaptation and therefore possibly in terms of the side of brain affected by the stimulation is discussed. |
| format | Article |
| id | doaj-art-210fee40b217490ab01cac1ab2e26c07 |
| institution | Kabale University |
| issn | 2090-5904 1687-5443 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Neural Plasticity |
| spelling | doaj-art-210fee40b217490ab01cac1ab2e26c072025-02-03T01:20:29ZengWileyNeural Plasticity2090-59041687-54432012-01-01201210.1155/2012/718604718604Left-Deviating Prism Adaptation in Left Neglect Patient: Reflexions on a Negative ResultJacques Luauté0Sophie Jacquin-Courtois1Jacinta O'Shea2Laure Christophe3Gilles Rode4Dominique Boisson5Yves Rossetti6Pole de rééducation et réadaptation, Plateforme mouvement et handicap, Hôpital Henry Gabrielle, Hospices Civils de Lyon, 69000 Lyon, FrancePole de rééducation et réadaptation, Plateforme mouvement et handicap, Hôpital Henry Gabrielle, Hospices Civils de Lyon, 69000 Lyon, FranceOxford Centre for Functional MRI of the Brain, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford OX3 9DU, UKPole de rééducation et réadaptation, Plateforme mouvement et handicap, Hôpital Henry Gabrielle, Hospices Civils de Lyon, 69000 Lyon, FrancePole de rééducation et réadaptation, Plateforme mouvement et handicap, Hôpital Henry Gabrielle, Hospices Civils de Lyon, 69000 Lyon, FrancePole de rééducation et réadaptation, Plateforme mouvement et handicap, Hôpital Henry Gabrielle, Hospices Civils de Lyon, 69000 Lyon, FrancePole de rééducation et réadaptation, Plateforme mouvement et handicap, Hôpital Henry Gabrielle, Hospices Civils de Lyon, 69000 Lyon, FranceAdaptation to right-deviating prisms is a promising intervention for the rehabilitation of patients with left spatial neglect. In order to test the lateral specificity of prism adaptation on left neglect, the present study evaluated the effect of left-deviating prism on straight-ahead pointing movements and on several classical neuropsychological tests in a group of five right brain-damaged patients with left spatial neglect. A group of healthy subjects was also included for comparison purposes. After a single session of exposing simple manual pointing to left-deviating prisms, contrary to healthy controls, none of the patients showed a reliable change of the straight-ahead pointing movement in the dark. No significant modification of attentional paper-and-pencil tasks was either observed immediately or 2 hours after prism adaptation. These results suggest that the therapeutic effect of prism adaptation on left spatial neglect relies on a specific lateralized mechanism. Evidence for a directional effect for prism adaptation both in terms of the side of the visuomanual adaptation and therefore possibly in terms of the side of brain affected by the stimulation is discussed.http://dx.doi.org/10.1155/2012/718604 |
| spellingShingle | Jacques Luauté Sophie Jacquin-Courtois Jacinta O'Shea Laure Christophe Gilles Rode Dominique Boisson Yves Rossetti Left-Deviating Prism Adaptation in Left Neglect Patient: Reflexions on a Negative Result Neural Plasticity |
| title | Left-Deviating Prism Adaptation in Left Neglect Patient: Reflexions on a Negative Result |
| title_full | Left-Deviating Prism Adaptation in Left Neglect Patient: Reflexions on a Negative Result |
| title_fullStr | Left-Deviating Prism Adaptation in Left Neglect Patient: Reflexions on a Negative Result |
| title_full_unstemmed | Left-Deviating Prism Adaptation in Left Neglect Patient: Reflexions on a Negative Result |
| title_short | Left-Deviating Prism Adaptation in Left Neglect Patient: Reflexions on a Negative Result |
| title_sort | left deviating prism adaptation in left neglect patient reflexions on a negative result |
| url | http://dx.doi.org/10.1155/2012/718604 |
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