Fig 1.
CONSORT flow diagram of study recruitment.
Fig 2.
Schematic presentation of study design.
Treatment participants received anodal (n = 29) and control participants (n = 29) sham stimulation over the three sessions. Measurements were taken on Day 1 (pretest), Day 2 (1st session), Day 5 (posttest), and Day 9 (follow-up). Legend: RAVLT—Auditory Verbal Learning Test; FCWR—Face Cued Word Recall task.
Fig 3.
Performance across outcome measures in anodal tDCS (magenta) and sham group (gray) at different time points.
Outcomes are presented on separate plots, with scores on y-axes, and timepoints on x-axes: D1 –pretest, D2 –following 1st tDCS session, D5 –posttest, D9 –follow-up. FCWR—Face Cued Word Recall task; RAVLT—Auditory Verbal Learning Test; PI–proactive interference; RI–retroactive reference. Dots represent individual data points (i.e., individual participants’ scores at each time point), diamonds indicate the mean for each group at each time point, and non-parametric indicators: interquartile range Q1-Q3 (box), median (line), range (whisker).
Table 1.
Descriptive statistics across groups and time points.
Table 2.
The results of ANOVA (main effect of group and time, and group x time interaction), across all outcome measures.