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 525.71 ± 73.5 434.8 ± 15.4 90.9 ± 58.1 41.32 ± 0.007 40.44 ± 0.151 85.4 ± 7.3 83.6 ± 16.3 67.6 ± 12.3 After 399.34 ± 32.3 299.7 ± 22.9 99.64 ± 9.4 48.55 ± 1.407 33.435 ± 0.162 97.6 ± 11.2 92.5 ± 12.5 76.7 ± 14.3 P -Value <0.05 >0.05 >0.05 <0.05 <0.05 <0.05 <0.05 <0.05

Table 1: Differential effects of piracetam 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