Systematic visual stimuli micro-refresh Evaluation on cognitive work performance

This study investigated the impact of systematic visual stimuli micro-refresh on cognitive performance and subjective response. Thirty-eight university students participated in a controlled laboratory experiment, performing cognitive tasks under both visual stimuli and control conditions. After applying exclusion criteria, data from 26 participants were analyzed. The Kruskal-Wallis test revealed significant differences in answering time between conditions. However, no significant differences were found for concentration time ratio, NASA-TLX scores, or most subjective symptoms (concentration, fatigue, haziness, sleepiness). A significant difference was observed only in sluggishness, with participants in the visual stimuli condition reporting lower levels. Subjective ratings of detachment, recovery, and relaxation were significantly higher in the visual stimuli condition, suggesting positive psychological effects. These findings highlight the potential benefits of visual stimuli micro-refresh, particularly in enhancing psychological benefits.