Persistent pusher behavior after a stroke

Santos-Pontelli, Taiza Elaine Grespan; Pontes-Neto, Octavio Marques; Araújo, Dráulio Barros de; Santos, Antonio Carlos dos; Leite, João Pereira

Persistent pusher behavior after a stroke

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dc.contributor.author	Santos-Pontelli, Taiza Elaine Grespan
dc.contributor.author	Pontes-Neto, Octavio Marques
dc.contributor.author	Araújo, Dráulio Barros de
dc.contributor.author	Santos, Antonio Carlos dos
dc.contributor.author	Leite, João Pereira
dc.date.accessioned	2017-05-26T17:34:23Z
dc.date.available	2017-05-26T17:34:23Z
dc.date.issued	2011
dc.description.resumo	Pusher behavior (PB) is a postural control disorder characterized by actively pushing away from the nonparetic side and resisting passive correction with a tendency to fall toward the paralyzed side.1 These patients have no awareness that their active pushing is counterproductive, which precludes the patients from standing without assistance. Several studies have already demonstrated that PB can occur in patients with lesions in both hemispheres, and PB is distinct from neglect and anosognosia.2-8 The high frequency of the association between PB and neurophysiological deficits might reflect an increased vulnerability of certain regions to stroke-induced injury rather than any direct involvement with the occurrence of PB.9,10 Traditionally, PB has only been reported in stroke patients; however, it has also been described under nonstroke conditions.8 Previous imaging studies have suggested the posterolateral thalamus as the brain structure that is typically damaged in pusher patients.4,11 Nevertheless, other cortical and subcortical areas, such as the insular cortex and post-central gyrus, have also been highlighted as structures that are potentially involved in the pathophysiology of PB.2,12-16	pt_BR
dc.identifier.issn	1807-5932
dc.identifier.uri	https://repositorio.ufrn.br/jspui/handle/123456789/23127
dc.language	eng	pt_BR
dc.rights	Acesso Aberto	pt_BR
dc.subject	Pusher behavior	pt_BR
dc.subject	Stroke	pt_BR
dc.title	Persistent pusher behavior after a stroke	pt_BR
dc.type	article	pt_BR