Psychometric Reaction time Cognitive central Integrity Working memory accuracy (%)   Variables TRT RRT MRT AFFF DFFF І-Back ІІ-Back ІІІ-Back (ms) (ms) (ms) Before 633.71 ± 73.5 477.8 ± 15.4 155.91 ± 58.1 42.32 ± 0.007 42.41 ± 0.151 89.4 ± 7.3 81.6 ± 16.3 65.6 ± 12.3 After 491.34 ± 32.3 279.7 ± 22.9 211.64 ± 9.4 47.55 ± 1.407 31.435 ± 0.162 99.4 ± 11.2 84.5 ± 12.5 65.7 ± 14.3 P- Value <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 >0.05 >0.05

Table 2: Differential ginkgo biloba effects on psychomotor performances, cognitive function and working memory; TRT=total reaction time, RRT=recognition reaction time, MRT=movement reaction time, AFFF=ascending flicker fusion frequency, DFFF=descending flicker fusion frequency