The visual vertical in the pusher syndrome: influence of hemispace and body position
| Autor: | Yann Coello, Marc Rousseaux, Jacques Honoré, Arnaud Saj |
|---|---|
| Přispěvatelé: | Laboratoire de Neurosciences Fonctionnelles et Pathologies (LNFP), Université de Lille, Droit et Santé-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2005 |
| Předmět: |
Adult
Male medicine.medical_specialty media_common.quotation_subject MESH: Space Perception MESH: Musculoskeletal Equilibrium MESH: Orientation Sitting Functional Laterality 050105 experimental psychology Neglect Perceptual Disorders 03 medical and health sciences 0302 clinical medicine Orientation medicine Humans 0501 psychology and cognitive sciences Clockwise MESH: Functional Laterality Postural Balance MESH: Perceptual Disorders Aged media_common MESH: Aged MESH: Humans MESH: Middle Aged MESH: Visual Perception 05 social sciences Body position MESH: Adult Anatomy Middle Aged MESH: Male Surgery Neurology Brain Injuries Space Perception MESH: Brain Injuries Visual Perception Body orientation Female [SDV.NEU]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC] Neurology (clinical) Psychology MESH: Female 030217 neurology & neurosurgery |
| Zdroj: | Deutsche Zeitschrift für Nervenheilkunde / Deutsche Zeitschrift f ur Nervenheilkunde Deutsche Zeitschrift für Nervenheilkunde / Deutsche Zeitschrift f ur Nervenheilkunde, 2005, 252 (8), pp.885-91. ⟨10.1007/s00415-005-0716-0⟩ |
| DOI: | 10.1007/s00415-005-0716-0⟩ |
| Popis: | International audience; The subjective visual vertical (SVV) was investigated in right brain-damaged (RBD) patients with pusher syndrome (PS) which is thought to stem from an erroneous perception of body orientation. The participants, sitting or lying, had to align a luminous rod with gravity. The task was performed in darkness with the rod centred to the body, or placed in the left (neglected) or in the right hemispace. The error, negligible in the control group (+0.3 degrees; n = 6) and mild in the nonneglect non-pusher patients (-1.8 degrees; n = 6), was clearly clockwise in the pusher neglect patients (N+P+; +7.2 degrees; n = 4), but anticlockwise in the non-pusher neglect patients (-6.6 degrees; n = 6). In both neglect groups, error was greater when the rod was in the left space. In N+P+ patients, the performance was strongly affected by posture (lying: +5.2 degrees ; sitting: +9.2 degrees ). Intra-individual variability was also much greater in this group. This study confirms the contralesional deviation of SVV in RBD patients without PS and suggests the presence of an opposite bias in RBD patients affected by PS. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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