Behavioral results.

Laterality Index (LI): Positive values indicate a bias towards right ear reports. (A) 180° tACS at 40Hz does not increase the LI (one-sided t-test for paired-samples, t(25) = 0.597, p = .278, d = 0.05). The error bars depict the standard error of the grand average behavioral performance (LI) during both conditions (mean ± SEM). (B) The individual behavioral performances (N = 26) during both conditions. The dashed lines highlight the directionality of the individual modulations (up: increase of LI; down: decrease of LI).