Task switching after stroke.
Background and Purpose Task switching is a cognitive skill that may be compromised after brain damage. The purposes of this study were to examine task-switching abilities in the subacute phase after stroke, to determine whether a switching task under endogenous or internal control is more difficult...
| Publicado en: | Physical Therapy Vol. 87; no. 1; pp. 66 - 74 |
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| Autores principales: | , , , , , |
| Formato: | commentary research tables/charts Journal Article |
| Publicado: |
Oxford University Press / USA
Jan2007
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=106264517&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 106264517 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 00319023 PTH jtl: Physical Therapy issn: 00319023 maglogo: N pubinfo: dt: Jan2007 vid: 87 iid: 1 pid: 10398 pub: Oxford University Press / USA artinfo: ui: 106264517 2009489454 10.2522/ptj.20060093 NLM17179439 106264517 ppf: 66 ppct: 8 formats: fmt: @attributes: type: P tig: atl: Task switching after stroke. aug: au: Pohl PS McDowd JM Filion D Richards LG Stiers W Kluding P affil: Associate Professor, Department of Physical Therapy & Rehabilitation Sciences, University of Kansas Medical Center, Mail Stop 2002, 3901 Rainbow Bird, Kansas City, KS 66160 (U SA) sug: subj: Cognition Disorders Etiology Stroke Physiopathology Task Performance and Analysis Aged Analysis of Variance Data Analysis Software Female Funding Source Male Multivariate Analysis of Variance Post Hoc Analysis Repeated Measures Time Factors Human Aged: 65+ years Female Male ab: Background and Purpose Task switching is a cognitive skill that may be compromised after brain damage. The purposes of this study were to examine task-switching abilities in the subacute phase after stroke, to determine whether a switching task under endogenous or internal control is more difficult than a switching task under exogenous or cued control, and to determine whether deficits in switching attenuate in the first few months after stroke. Subjects The participants in this study were 46 adults with stroke and 38 adults without stroke. Methods Subjects performed 2 computer-based switching tasks, an alternating task that relied on endogenous control and a cued task that relied on exogenous control. Testing was done in subjects' homes at 1 and 3 months after stroke and at a 2-month interval for control subjects. Switch costs, or the difference between the no-switch condition and the switch condition, were calculated for accuracy and response time. Results Subjects in the stroke group had higher switch costs for accuracy than did subjects in the control group. The alternating task was more difficult than the cued task, with higher switch costs for accuracy and response time. The alternating task was particularly difficult for subjects in the stroke group, with high switch costs for accuracy. Both groups showed decreased response time switch costs at the second testing session. Discussion and Conclusion Task switching, particularly if under endogenous control, is impaired in adults in the subacute phase after stroke. Clinicians should be aware of performance deficits that may relate to task switching. pubtype: Academic Journal doctype: commentary research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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