Study Results
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Basic Information
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TERMINATED
NA
11 participants
INTERVENTIONAL
2022-01-31
2025-06-11
Brief Summary
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Detailed Description
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CO-OP uses meaningful, client-chosen activities to drive new skill learning and neural reorganization. Consistent with these principles of neuroplasticity, transcranial direct current stimulation (tDCS) is a non-invasive brain stimulation method of modulating cortical excitability through application of low currents to targeted regions on the scalp.
There are known positive effects of CO-OP to improve activity performance and for tDCS to improve impairment level outcomes post-stroke. The investigators hypothesize that the known effects of CO-OP may be amplified with use of tDCS to alter known neural hubs of executive networks that support problem-solving. In sum, (1) CO-OP is effective at improving activity performance, and (2) the effects of CO-OP may be amplified through novel methods that allow for placing the brain in an enhanced neuroplastic state, such as tDCS.
Conditions
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
TRIPLE
Study Groups
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CO-OP and tDCS group
Each session will consist of 20 minutes of anodal tDCS applied to the left dorsolateral prefrontal cortex (DLPFC) at 1.5 mA. This will be followed by 45 minutes of the assigned CO-OP.
CO-OP Procedures
CO-OP focuses on learning of a global problem-solving strategy, Goal-Plan-Do-Check (GPDC), within the performance of participant-chosen goals. Use of a broadly applicable strategy and meaningful activity ensures the intervention is salient to the participant and increases likelihood of transfer. Uniquely, therapists applying CO-OP use guided discovery methods to support participants in analyzing their own performance of a given task and generating potential solutions for improving performance. Participants become equipped with these skills through repetitive application of the Goal-Plan-Do-Check process.The intervention focuses on learning GPDC with gradual withdrawal of guided discovery methods.
tDCS
Each session will begin with 20 minutes of anodal tDCS applied to the ipsilesional dorsolateral prefrontal cortex (DLPFC) at 1.5 mA. The cathode will be placed over the contralesional supraorbital area. Direct current will be applied through two saline soaked sponges placed on the scalp. The tDCS device contains software for double-blinded delivery.
CO-OP and sham tDCS group
Each session will consist 20 minutes of sham tDCS followed by 45 minutes of the assigned CO-OP.
CO-OP Procedures
CO-OP focuses on learning of a global problem-solving strategy, Goal-Plan-Do-Check (GPDC), within the performance of participant-chosen goals. Use of a broadly applicable strategy and meaningful activity ensures the intervention is salient to the participant and increases likelihood of transfer. Uniquely, therapists applying CO-OP use guided discovery methods to support participants in analyzing their own performance of a given task and generating potential solutions for improving performance. Participants become equipped with these skills through repetitive application of the Goal-Plan-Do-Check process.The intervention focuses on learning GPDC with gradual withdrawal of guided discovery methods.
sham tDCS group
Sham tDCS will involve the same preparation as in tDCS, but the current will ramp up for only 30 seconds and then return to zero. This method allows for sensations on the scalp associated with tDCS without inducing any neural changes.
Computer cognitive training and tDCS group
Each session will consist of 20 minutes of anodal tDCS applied to the left dorsolateral prefrontal cortex (DLPFC) at 1.5 mA. This will be followed by 45 minutes of the assigned computer cognitive training.
tDCS
Each session will begin with 20 minutes of anodal tDCS applied to the ipsilesional dorsolateral prefrontal cortex (DLPFC) at 1.5 mA. The cathode will be placed over the contralesional supraorbital area. Direct current will be applied through two saline soaked sponges placed on the scalp. The tDCS device contains software for double-blinded delivery.
Computer Cognitive Training Procedures
Individuals receiving computerized cognitive training will receive an equal dosage of 12, 45-minute sessions directly following the assigned tDCS condition. The online training software of BrainHQ will be used. BrainHQ is a well-recognized cognitive training program that targets the areas of attention, memory, processing speed, people skills, intelligence, and navigation. BrainHQ tracks progress and automatically grades difficulty as appropriate.
Computer cognitive training and sham tDCS group
Each session will consist 20 minutes of sham tDCS followed by 45 minutes of the assigned computer cognitive training.
Computer Cognitive Training Procedures
Individuals receiving computerized cognitive training will receive an equal dosage of 12, 45-minute sessions directly following the assigned tDCS condition. The online training software of BrainHQ will be used. BrainHQ is a well-recognized cognitive training program that targets the areas of attention, memory, processing speed, people skills, intelligence, and navigation. BrainHQ tracks progress and automatically grades difficulty as appropriate.
sham tDCS group
Sham tDCS will involve the same preparation as in tDCS, but the current will ramp up for only 30 seconds and then return to zero. This method allows for sensations on the scalp associated with tDCS without inducing any neural changes.
Interventions
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CO-OP Procedures
CO-OP focuses on learning of a global problem-solving strategy, Goal-Plan-Do-Check (GPDC), within the performance of participant-chosen goals. Use of a broadly applicable strategy and meaningful activity ensures the intervention is salient to the participant and increases likelihood of transfer. Uniquely, therapists applying CO-OP use guided discovery methods to support participants in analyzing their own performance of a given task and generating potential solutions for improving performance. Participants become equipped with these skills through repetitive application of the Goal-Plan-Do-Check process.The intervention focuses on learning GPDC with gradual withdrawal of guided discovery methods.
tDCS
Each session will begin with 20 minutes of anodal tDCS applied to the ipsilesional dorsolateral prefrontal cortex (DLPFC) at 1.5 mA. The cathode will be placed over the contralesional supraorbital area. Direct current will be applied through two saline soaked sponges placed on the scalp. The tDCS device contains software for double-blinded delivery.
Computer Cognitive Training Procedures
Individuals receiving computerized cognitive training will receive an equal dosage of 12, 45-minute sessions directly following the assigned tDCS condition. The online training software of BrainHQ will be used. BrainHQ is a well-recognized cognitive training program that targets the areas of attention, memory, processing speed, people skills, intelligence, and navigation. BrainHQ tracks progress and automatically grades difficulty as appropriate.
sham tDCS group
Sham tDCS will involve the same preparation as in tDCS, but the current will ramp up for only 30 seconds and then return to zero. This method allows for sensations on the scalp associated with tDCS without inducing any neural changes.
Eligibility Criteria
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Inclusion Criteria
* not currently receiving therapy services
* a minimum of four self-identified functional goals
Exclusion Criteria
* dementia symptoms (\<24 on Montreal Cognitive Assessment)
* any additional neurological disorders
* moderate-severe aphasia (NIH Stroke Scale aphasia scale of greater than or equal to 2)
* any tDCS contraindication
18 Years
85 Years
ALL
No
Sponsors
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University of Missouri-Columbia
OTHER
Responsible Party
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Anna Boone
Assistant Professor in the Department of Occupational Therapy
Principal Investigators
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Anna E Boone, PhD, OTR/L
Role: PRINCIPAL_INVESTIGATOR
University of Missouri Occupational Therapy
Locations
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University of Missouri Occupational Therapy Department
Columbia, Missouri, United States
Countries
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References
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Other Identifiers
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2076763
Identifier Type: -
Identifier Source: org_study_id
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