a trend towards significanceP = 0.057
This group effect was evident across multiple frequency bands, with significant differences in delta ( P = 0.042), theta ( P = 0.020), alpha 1 ( P = 0.021), alpha 2 ( P = 0.021), beta 1 ( P = 0.026) and beta 2 ( P = 0.042) values and a trend towards significance in the gamma band ( P = 0.057; Fig. 5B ).