marginal significancep = 0.83
Additionally, no significance was found for 80 Hz in Friedman test, albeit marginal significance was observed for the trough condition (sham: sham: χ 2 = 0.38, p = 0.83; peak: χ 2 = 2, p = 0.37; trough: χ 2 = 4.88, p = 0.09).