borderline significantP = 0.053
sham stimulation) on overall dʹ scores revealed a borderline significant effect of phase [ F 1,24 = 4.13, P = 0.053, 95% CI (0.00, 1.60), d = 0.79], a non‐significant result for stimulation condition [ F 1,24 = 1.16, P = 0.292, 95% CI (−0.35, 1.20), d = 0.42] and a significant phase × stimulation condition interaction [ F 1,24 = 7.36, P = 0.012, 95% CI (0.24, 1.89), d = 1.06].