The purpose of this project is to test the hypothesis that Speed of Information Processing (SIP) deficits in acquired brain injury (ABI) can be remediated. The majority of individuals with acquired brain injuries have speed of information processing deficits as part of the cognitive sequelae of the brain injury. Empirical research is expected to demonstrate the efficacy of computerized cognitive Speed of Information Processing (SIP) training in individuals with ABI.
Study participants will be asked to attend two study visits over the course of approximately 13 weeks. Participants will be randomly assigned to either the experimental or control group.
The specific aims of the current research protocol are as follows: Aim 1: To test the hypothesis that SIP training of individuals with ABI will improve processing speed. This study is expected to demonstrate that individuals with ABI that receive SIP training will improve on neurocognitive measures of processing speed. Aim 2: To test the generalizability of SIP training of individuals with TBI to other cognitive domains beyond information processing speed. This study is expected to demonstrate increases in working memory, attention and executive functioning in the group that receives the cognitive training. Aim 3: To test the hypothesis that SIP training of individuals with TBI will improve mood. This study is expected to demonstrate that self-reported levels of depression will improve in the group that receives cognitive training. Aim 4: To examine if changes in the neural integrity of white matter pathways of the brain occur in individuals that undergo the SIP training.
All participants will undergo a set of baseline cognitive exams/tests, which will take approximately two hours. Participants will be randomly placed in either the experimental group or the control group. The experimental group will undergo approximately 40 hours of training on the Brain Fitness Program over an eight week period. The control group will be contacted once a week for eight weeks about their cognitively stimulating activities (i.e. reading, working on the computer, and puzzles). At approximately the thirteenth week participants from both groups will undergo post-baseline cognitive exams/tests. This evaluation will take approximately two hours. In addition there is an optional neuroimaging study which participants may elect to participate in. Participants who agree to take part in the neuroimaging portion of the study will undergo a baseline MRI scan. At approximately 13 weeks later participants will undergo a post-baseline MRI scan. Both scans will take approximately one hour.
- Brain Fitness Program Other
Intervention Desc: This intervention involves work on a computer by responding to sounds for five hours a week, approximately one hour a day five days a week at the Rusk Institute for Rehabilitation. ARM 1: Kind: Experimental Label: Experimental Group
- Weekly Telephone Contact Other
Intervention Desc: This intervention involves weekly telephone calls over a period of approximately 8 weeks to inquire about the participant's involvement in cognitively stimulating activities (such as reading, working on the computer, puzzles, etc.) ARM 1: Kind: Experimental Label: Control Group
- Allocation: Randomized
- Masking: Open Label
- Purpose: Treatment
- Intervention: Parallel Assignment
|Type||Measure||Time Frame||Safety Issue|
|Primary||Reading ability||Change from baseline after 13 weeks||No|
|Primary||Speed of Information Processing||Change from baseline after 13 weeks||No|
|Primary||Executive Functions||Change from baseline after 13 weeks||No|
|Primary||Working Memory and Attention||Change from baseline after 13 weeks||No|
|Primary||Visual and Verbal Memory||Change from baseline after 13 weeks||No|
|Primary||Speech Perception||Change from baseline after 13 weeks||No|
|Primary||Depression||Change from baseline after 13 weeks||No|
|Primary||Anxiety||Change from baseline after 13 weeks||No|
|Primary||Cognitive Questionnaire||Change from baseline after 13 weeks||No|
|Secondary||Neuroimaging||Change from baseline after 13 weeks||No|