Table 1.

Questionnaire scores after each intervention.

	Dual-Anodal-Left	Dual-Anodal-Right	Uni-Anodal-Left	Sham
Attention	1.3 ± 0.2	1.3 ± 0.2	1.1 ± 0.1	1.4 ± 0.2
Fatigue	1.2 ± 0.1	1.3 ± 0.2	1.2 ± 0.1	1.3 ± 0.2
Pain	1.1 ± 0.1	1.1 ± 0.1	1.1 ± 0.1	1.5 ± 0.2
Discomfort	1.3 ± 0.2	1.3 ± 0.2	1.3 ± 0.2	1.4 ± 0.2

Data represent the group mean ± SEM. Attention was scored on a scale of 1–4 (1 = no distraction; 4 = highest level of distraction). Fatigue was scored on a scale of 1–4 (1 = no fatigue; 4 = highest level of fatigue). Pain was scored on a scale of 1–4 (1 = no pain; 4 = strongest pain). Discomfort was scored on a scale of 1–4 (1 = no discomfort; 4 = strongest discomfort). A one-way ANOVA (four levels of Intervention) for each of the post-experimental ratings showed no significant differences (P-values > 0.1).