Compromised Motor Dexterity Confounds Processing Speed Task Outcomes in Stroke Patients
Most conventional measures of information processing speed require motor responses to facilitate performance. However, although not often addressed clinically, motor impairment, whether due to age or acquired brain injury, would be expected to confound the outcome measure of such tasks. The current...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2017-09-01
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| Series: | Frontiers in Neurology |
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| Online Access: | http://journal.frontiersin.org/article/10.3389/fneur.2017.00484/full |
| _version_ | 1828329015788699648 |
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| author | Essie Low Essie Low Sheila Gillard Crewther Sheila Gillard Crewther Ben Ong Diana Perre Tissa Wijeratne Tissa Wijeratne Tissa Wijeratne Tissa Wijeratne |
| author_facet | Essie Low Essie Low Sheila Gillard Crewther Sheila Gillard Crewther Ben Ong Diana Perre Tissa Wijeratne Tissa Wijeratne Tissa Wijeratne Tissa Wijeratne |
| author_sort | Essie Low |
| collection | DOAJ |
| description | Most conventional measures of information processing speed require motor responses to facilitate performance. However, although not often addressed clinically, motor impairment, whether due to age or acquired brain injury, would be expected to confound the outcome measure of such tasks. The current study recruited 29 patients (20 stroke and 9 transient ischemic attack) with documented reduction in dexterity of the dominant hand, and 29 controls, to investigate the extent to which 3 commonly used processing speed measures with varying motor demands (a Visuo-Motor Reaction Time task, and the Wechsler Adult Intelligence Scale-IV Symbol Search and Coding subtests) may be measuring motor-related speed more so than cognitive speed. Analyses include correlations between indices of cognitive and motor speed obtained from two other tasks (Inspection Time and Pegboard task, respectively) with the three speed measures, followed by hierarchical regressions to determine the relative contribution of cognitive and motor speed indices toward task performance. Results revealed that speed outcomes on tasks with relatively high motor demands, such as Coding, were largely reflecting motor speed in individuals with reduced dominant hand dexterity. Thus, findings indicate the importance of employing measures with minimal motor requirements, especially when the assessment of speed is aimed at understanding cognitive rather than physical function. |
| first_indexed | 2024-04-13T20:18:56Z |
| format | Article |
| id | doaj.art-2533e7a33e31480b9837ae842e93488e |
| institution | Directory Open Access Journal |
| issn | 1664-2295 |
| language | English |
| last_indexed | 2024-04-13T20:18:56Z |
| publishDate | 2017-09-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Neurology |
| spelling | doaj.art-2533e7a33e31480b9837ae842e93488e2022-12-22T02:31:37ZengFrontiers Media S.A.Frontiers in Neurology1664-22952017-09-01810.3389/fneur.2017.00484282220Compromised Motor Dexterity Confounds Processing Speed Task Outcomes in Stroke PatientsEssie Low0Essie Low1Sheila Gillard Crewther2Sheila Gillard Crewther3Ben Ong4Diana Perre5Tissa Wijeratne6Tissa Wijeratne7Tissa Wijeratne8Tissa Wijeratne9Department of Neurology, Sunshine Hospital, Western Health, Melbourne, VIC, AustraliaDepartment of Psychology and Counselling, School of Psychology and Public Health, La Trobe University, Bundoora, VIC, AustraliaDepartment of Neurology, Sunshine Hospital, Western Health, Melbourne, VIC, AustraliaDepartment of Psychology and Counselling, School of Psychology and Public Health, La Trobe University, Bundoora, VIC, AustraliaDepartment of Psychology and Counselling, School of Psychology and Public Health, La Trobe University, Bundoora, VIC, AustraliaDepartment of Psychology, Sunshine Hospital, Western Health, Melbourne, VIC, AustraliaDepartment of Neurology, Sunshine Hospital, Western Health, Melbourne, VIC, AustraliaDepartment of Psychology and Counselling, School of Psychology and Public Health, La Trobe University, Bundoora, VIC, AustraliaDepartment of Medicine, Melbourne Medical School, University of Melbourne, Western Health Sunshine Hospital, St Albans, VIC, AustraliaDepartment of Medicine, University of Rajarata, Anuradhapura, Sri LankaMost conventional measures of information processing speed require motor responses to facilitate performance. However, although not often addressed clinically, motor impairment, whether due to age or acquired brain injury, would be expected to confound the outcome measure of such tasks. The current study recruited 29 patients (20 stroke and 9 transient ischemic attack) with documented reduction in dexterity of the dominant hand, and 29 controls, to investigate the extent to which 3 commonly used processing speed measures with varying motor demands (a Visuo-Motor Reaction Time task, and the Wechsler Adult Intelligence Scale-IV Symbol Search and Coding subtests) may be measuring motor-related speed more so than cognitive speed. Analyses include correlations between indices of cognitive and motor speed obtained from two other tasks (Inspection Time and Pegboard task, respectively) with the three speed measures, followed by hierarchical regressions to determine the relative contribution of cognitive and motor speed indices toward task performance. Results revealed that speed outcomes on tasks with relatively high motor demands, such as Coding, were largely reflecting motor speed in individuals with reduced dominant hand dexterity. Thus, findings indicate the importance of employing measures with minimal motor requirements, especially when the assessment of speed is aimed at understanding cognitive rather than physical function.http://journal.frontiersin.org/article/10.3389/fneur.2017.00484/fullprocessing speedmotor speedcognitive speedstroketransient ischemic attackmotor impairment |
| spellingShingle | Essie Low Essie Low Sheila Gillard Crewther Sheila Gillard Crewther Ben Ong Diana Perre Tissa Wijeratne Tissa Wijeratne Tissa Wijeratne Tissa Wijeratne Compromised Motor Dexterity Confounds Processing Speed Task Outcomes in Stroke Patients Frontiers in Neurology processing speed motor speed cognitive speed stroke transient ischemic attack motor impairment |
| title | Compromised Motor Dexterity Confounds Processing Speed Task Outcomes in Stroke Patients |
| title_full | Compromised Motor Dexterity Confounds Processing Speed Task Outcomes in Stroke Patients |
| title_fullStr | Compromised Motor Dexterity Confounds Processing Speed Task Outcomes in Stroke Patients |
| title_full_unstemmed | Compromised Motor Dexterity Confounds Processing Speed Task Outcomes in Stroke Patients |
| title_short | Compromised Motor Dexterity Confounds Processing Speed Task Outcomes in Stroke Patients |
| title_sort | compromised motor dexterity confounds processing speed task outcomes in stroke patients |
| topic | processing speed motor speed cognitive speed stroke transient ischemic attack motor impairment |
| url | http://journal.frontiersin.org/article/10.3389/fneur.2017.00484/full |
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