Task switching after stroke

Patricia S. Pohl, Joan M. McDowd, Diane Filion, Lorie G. Richards, William Stiers, Patricia Kluding

Research output: Contribution to journalArticle

Abstract

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.

Original languageEnglish (US)
Pages (from-to)66-73
Number of pages8
JournalPhysical Therapy
Volume87
Issue number1
DOIs
StatePublished - Jan 2007

Fingerprint

Stroke
Costs and Cost Analysis
Reaction Time
Aptitude
Control Groups
Brain

ASJC Scopus subject areas

  • Physical Therapy, Sports Therapy and Rehabilitation
  • Health Professions(all)
  • Orthopedics and Sports Medicine

Cite this

Pohl, P. S., McDowd, J. M., Filion, D., Richards, L. G., Stiers, W., & Kluding, P. (2007). Task switching after stroke. Physical Therapy, 87(1), 66-73. https://doi.org/10.2522/ptj.20060093

Task switching after stroke. / Pohl, Patricia S.; McDowd, Joan M.; Filion, Diane; Richards, Lorie G.; Stiers, William; Kluding, Patricia.

In: Physical Therapy, Vol. 87, No. 1, 01.2007, p. 66-73.

Research output: Contribution to journalArticle

Pohl, PS, McDowd, JM, Filion, D, Richards, LG, Stiers, W & Kluding, P 2007, 'Task switching after stroke', Physical Therapy, vol. 87, no. 1, pp. 66-73. https://doi.org/10.2522/ptj.20060093
Pohl PS, McDowd JM, Filion D, Richards LG, Stiers W, Kluding P. Task switching after stroke. Physical Therapy. 2007 Jan;87(1):66-73. https://doi.org/10.2522/ptj.20060093
Pohl, Patricia S. ; McDowd, Joan M. ; Filion, Diane ; Richards, Lorie G. ; Stiers, William ; Kluding, Patricia. / Task switching after stroke. In: Physical Therapy. 2007 ; Vol. 87, No. 1. pp. 66-73.
@article{13ea0ec223e046788ad2fd618b05fa55,
title = "Task switching after stroke",
abstract = "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.",
author = "Pohl, {Patricia S.} and McDowd, {Joan M.} and Diane Filion and Richards, {Lorie G.} and William Stiers and Patricia Kluding",
year = "2007",
month = "1",
doi = "10.2522/ptj.20060093",
language = "English (US)",
volume = "87",
pages = "66--73",
journal = "Physical Therapy",
issn = "0031-9023",
publisher = "American Physical Therapy Association",
number = "1",

}

TY - JOUR

T1 - Task switching after stroke

AU - Pohl, Patricia S.

AU - McDowd, Joan M.

AU - Filion, Diane

AU - Richards, Lorie G.

AU - Stiers, William

AU - Kluding, Patricia

PY - 2007/1

Y1 - 2007/1

N2 - 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.

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.

UR - http://www.scopus.com/inward/record.url?scp=33846001330&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33846001330&partnerID=8YFLogxK

U2 - 10.2522/ptj.20060093

DO - 10.2522/ptj.20060093

M3 - Article

C2 - 17179439

AN - SCOPUS:33846001330

VL - 87

SP - 66

EP - 73

JO - Physical Therapy

JF - Physical Therapy

SN - 0031-9023

IS - 1

ER -