Involuntary hand levitation associated with parietal damage: another alien hand syndrome
The alien hand syndrome (AHS) usually consists of an autonomous motor activity perceived as an involuntary and purposeful movement, with a feeling of foreignness of the involved limb, commonly associated with a failure to recognise ownership of the limb in the absence of visual clues. It has been de...
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| Format: | Article |
| Language: | English |
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Thieme Revinter Publicações
2001-09-01
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| Series: | Arquivos de Neuro-Psiquiatria |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X2001000400007&tlng=en |
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| author | Paulo E.M. Carrilho Paulo Caramelli Francisco Cardoso Egberto Reis Barbosa Carlos A. Buchpiguel Ricardo Nitrini |
| author_facet | Paulo E.M. Carrilho Paulo Caramelli Francisco Cardoso Egberto Reis Barbosa Carlos A. Buchpiguel Ricardo Nitrini |
| author_sort | Paulo E.M. Carrilho |
| collection | DOAJ |
| description | The alien hand syndrome (AHS) usually consists of an autonomous motor activity perceived as an involuntary and purposeful movement, with a feeling of foreignness of the involved limb, commonly associated with a failure to recognise ownership of the limb in the absence of visual clues. It has been described in association to lesions of the frontal lobes and corpus callosum. However, parietal damage can promote an involuntary, but purposeless, hand levitation, which, sometimes, resembles AHS. In the present study, four patients (cortico-basal ganglionic degeneration -- n=2; Alzheimer's disease -- n=1 and parietal stroke -- n=1) who developed alien hand motor behaviour and whose CT, MRI and/or SPECT have disclosed a major contralateral parietal damage or dysfunction are described. These results reinforce the idea that parietal lobe lesions may also play a role in some patients with purposeless involuntary limb levitation, which is different from the classic forms of AHS. |
| format | Article |
| id | doaj-art-ad00a637e25d49a1b40b7e44a91b3ffd |
| institution | OA Journals |
| issn | 1678-4227 |
| language | English |
| publishDate | 2001-09-01 |
| publisher | Thieme Revinter Publicações |
| record_format | Article |
| series | Arquivos de Neuro-Psiquiatria |
| spelling | doaj-art-ad00a637e25d49a1b40b7e44a91b3ffd2025-08-20T01:59:39ZengThieme Revinter PublicaçõesArquivos de Neuro-Psiquiatria1678-42272001-09-01593A52152510.1590/S0004-282X2001000400007Involuntary hand levitation associated with parietal damage: another alien hand syndromePaulo E.M. Carrilho0Paulo Caramelli1Francisco Cardoso2Egberto Reis Barbosa3Carlos A. Buchpiguel4Ricardo Nitrini5Universidade de São PauloUniversidade de São PauloUniversidade Federal de Minas GeraisUniversidade de São PauloUniversidade de São PauloUniversidade de São PauloThe alien hand syndrome (AHS) usually consists of an autonomous motor activity perceived as an involuntary and purposeful movement, with a feeling of foreignness of the involved limb, commonly associated with a failure to recognise ownership of the limb in the absence of visual clues. It has been described in association to lesions of the frontal lobes and corpus callosum. However, parietal damage can promote an involuntary, but purposeless, hand levitation, which, sometimes, resembles AHS. In the present study, four patients (cortico-basal ganglionic degeneration -- n=2; Alzheimer's disease -- n=1 and parietal stroke -- n=1) who developed alien hand motor behaviour and whose CT, MRI and/or SPECT have disclosed a major contralateral parietal damage or dysfunction are described. These results reinforce the idea that parietal lobe lesions may also play a role in some patients with purposeless involuntary limb levitation, which is different from the classic forms of AHS.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X2001000400007&tlng=enalien hand syndromeparietal lobeAlzheimer's diseasecortico-basal ganglionic degeneration |
| spellingShingle | Paulo E.M. Carrilho Paulo Caramelli Francisco Cardoso Egberto Reis Barbosa Carlos A. Buchpiguel Ricardo Nitrini Involuntary hand levitation associated with parietal damage: another alien hand syndrome Arquivos de Neuro-Psiquiatria alien hand syndrome parietal lobe Alzheimer's disease cortico-basal ganglionic degeneration |
| title | Involuntary hand levitation associated with parietal damage: another alien hand syndrome |
| title_full | Involuntary hand levitation associated with parietal damage: another alien hand syndrome |
| title_fullStr | Involuntary hand levitation associated with parietal damage: another alien hand syndrome |
| title_full_unstemmed | Involuntary hand levitation associated with parietal damage: another alien hand syndrome |
| title_short | Involuntary hand levitation associated with parietal damage: another alien hand syndrome |
| title_sort | involuntary hand levitation associated with parietal damage another alien hand syndrome |
| topic | alien hand syndrome parietal lobe Alzheimer's disease cortico-basal ganglionic degeneration |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X2001000400007&tlng=en |
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