Development and Application of Cognitive Perceptual Assessment for Driving of People with Brain Injury - Comparison with Cognitive Behavioral Driver's Inventory

OBJECTIVE: We developed the Cognitive Perceptual Assessment for Driving (CPAD) to assess the driving ability of people with acquired brain injury. To find out the usefulness of this tool as a screening test for safe driving, we compared it with the Cognitive Behavioral Driver's Inventory (CBDI). METHOD: Subjects were 101 people with acquired brain injury who had driven a car before the injury. Each subject was evaluated with CPAD and CBDI. CPAD consisted of 8 tasks and 10 variables. We calculated CPAD score using 10 variables and compared CPAD with CBDI result and score. RESULTS: The average CPAD score was 49.65 7.97. According to CBDI test, the number of CBDI passing group was 36, borderline group was 27, and failing group was 38. CPAD variables and score showed significant correlation with CBDI score (p<0.05). There was significant difference in CPAD variables and score among the 3 groups (p<0.05). CONCLUSION: CPAD can be a useful tool for assessing the driving ability of the people with acquired brain injury.

Evaluation of Driving Ability of Stroke Patients Using Cognitive Behavioral Driver's Inventory

OBJECTIVE: We tried to evaluate the driving ability of stroke patients using Cognitive Behavioral Driver's Inventory (CBDI), Psychological Software Service, U.S.A. to find out whether it is helpful in predicting the outcome of driving rehabilitation. METHOD: Subjects were 18 stroke patients who had driven a car before the stroke. Each patient was evaluated with CBDI and got a driving test. We compared driving test results with CBDI scores. RESULTS: Average CBDI score was 63.0 +/- 19.3. There was no significant difference according to lesion sides or types of stroke. Average score of driving test was 85.3 +/- 10.9. Twelve of 18 subjects passed the driving test and six subjects failed. Average score among right hemiplegics was significantly higher than that of left hemiplegics (p<0.05). Average CBDI score of the subjects who passed the driving test was 52.3 +/- 4.7, while that of the failed subjects was 84.7 +/- 19.6. There was significant difference in CBDI score between 2 groups (p<0.05). Among the 28 items of CBDI, 11 items including brake reaction time, Wechsler Adult Intelligence Scale-Revised Picture Completion showed significant correlation with the total score of the driving test (p<0.05). CONCLUSION: CBDI can be used as a useful tool for predicting driving ability of stroke patients.