showed a trendp = .087
marginally significantp = .088
By conducting separate repeated-measures ANOVAs for each age group, it was found that only among older adults was the effect of feedback significant, F (2, 76) = 9.30, p < .001, η2 = 0.39; post-hoc analysis revealed that compared with baseline ( M = 0.90, SE = 0.04), B''D showed a trend to decrease under BFB ( M = 0.78, SE = 0.05, t (19) = 2.36, p = .087) and kept decreasing under OFB at a marginally significant level ( M = 0.67, SE = 0.05, compared with BFB; t (19) = 2.36, p = .088).