For evoked theta, the main effect of group was significant (F(2, 143) = 10.17, P < 0.001, ηp2 = 0.12). The Tukey's HSD test indicated that while mean evoked theta power for both the STAA and LTAA groups was significantly smaller than that of NAC (both P < 0.002, Cohen's d effect sizes = 0.76 and 0.74, respectively), the STAA and LTAA groups did not significantly differ from each other (P = 0.99, d = 0.02).
