ABSTRACT

Objective : This study examined effect of Dynavision training on visual attention while conducting tasks after a stroke, and performed an eye-tracker analysis. Methods : Across an ABAB single-subject research design, three stroke patients conducted Dynavision training during the intervention period, and the eye-tracker evaluated their visual attention after each session. A visual analysis was conducted using a graph, and the changes in the values were analyzed through two standard deviations and the trend line. Results : The values of eye fixation, eye saccade, and eye scan-path remained high within the two standard deviation band more than twice during the intervention and reversal intervention period. The trend line for the intervention and reversal intervention period was steep. The trend line for the percentage of correct answers on paper was increased during the reversal baseline period. In addition, the trend for the line reversal intervention period was steeper than for the intervention period. Conclusion : Dynavision training after a stroke affected the visual attention while conducting tasks, and an eye-tracker evaluation was more objective than a pencil-paper evaluation.