PC-Based Cognitive Rehabilitation for TBI
Overview
- Phase
- Not Applicable
- Intervention
- Not specified
- Conditions
- Traumatic Brain Injury
- Sponsor
- US Department of Veterans Affairs
- Enrollment
- 265
- Primary Endpoint
- Performance in TBI Patients and Controls
- Status
- Completed
- Last Updated
- 10 years ago
Overview
Brief Summary
The investigators evaluated whether it was possible to improve the measurement of memory, attention, and executive function in patients who have suffered traumatic brain injury through the use of computer-based testing.
Note: the original design of the study was altered due to failure to recruit sufficient numbers of patients who were willing to undergo prolonged cognitive training.
Detailed Description
Here we describe a series of computer-based tests that were used to evaluate memory, attention, and executive function in large groups of control subjects and in patients with chronic mild and moderate/severe TBI. This extensive battery of neuropsychological tests (NPTs) and subjective rating scale measures were obtained at study entry from the TBI cohort. NPT and rating scale data were compared to those obtained from control subjects to characterize the cognitive deficits following mild, moderate and severe TBI. . Normative data were obtained by regressing the influences of age, education, and computer use on scores to create normed z-scores on different NPTs,. We hypothesized that patient with TBI would show deficits on tests of memory, attention, and executive function relative to their predicted z-scores (based on the aforementioned regression functions) and that deficits would be more pronounced in patients with severe TBI than in patients with mild TBI.
Investigators
Eligibility Criteria
Inclusion Criteria
- •Control subjects were required to meet the following inclusion criteria:
- •(a) fluency in the English language
- •(b) no current or prior history of bipolar disorder, mania, or schizophrenia
- •(c) no current substance abuse
- •(d) no concurrent history of neurologic disease known to affect cognitive functioning
- •(e) on a stable dosage of any required medication
- •(f) auditory functioning sufficient to understanding normal conversational speech and visual acuity normal or corrected to 20/40 or better
- •Exclusion criteria:
- •History of TBI
- •Exclusion Criteria for TBI patients:
Exclusion Criteria
- Not provided
Outcomes
Primary Outcomes
Performance in TBI Patients and Controls
Time Frame: Subjects were tested in a single 2-hr session.
Subjects were assessed on a set of cognitive tests. Here we describe the results on the simple reaction time test in which subjects respond as rapidly as possible to the computer-controlled occurrence of a visual stimulus by pressing a mouse button. Two control groups were used. One large control group underwent a single test to provide data from subjects with a broad range of age and education. The other, smaller, control group underwent three tests at weekly intervals to evaluate the test-retest reliability of the measure.