and 6. The stimulation x time interactions on accuracy (F8,656 = 16.707, p < 0.01, partial η2 = 0.169) and RT (F8,656 = 3.655, p = 0.009, partial η2 = 0.043) were significant. The results suggest that stimulation rapidly improved task accuracy in older adults with lasting and stable offline effects that continued for the length of the experiment, whereas stimulation effects on performance speed were more variable and fleeting.
