. Author manuscript; available in PMC: 2019 Dec 7.

Published in final edited form as: Autism Res. 2019 Aug 16;12(12):1758–1773. doi: 10.1002/aur.2193

Table 2.

Peak Alpha Frequency Values and Group Comparison Results

12-months	TD Mean (SD)	TSC Mean (SD)	Test statistic (U)	P-value^a	Cohen’s d
Frontal	7.42 (0.53) n = 18	7.16 (0.59) n = 16	U = 102	0.154	0.464
Central	7.49 (0.47) n = 19	7.36(0.48) n = 16	U = 124.5	0.367	0.274
Occipital	7.25 (0.58) n = 18	6.9 (0.63) n = 16	U = 102.5	0.154	0.580

24-months	Mean (SD)	Mean (SD)

Frontal	8.31 (0.39) n = 12	7.71 (0.71) n = 27	U = 75	0.007^a	1.047
Central	8.42 (0.44) n = 12	7.8 (0.87) n = 27	U = 86	0.026^a	0.899
Occipital	8.08 (0.73) n = 12	7.56 (0.91) n = 26	U = 112.5	0.174	0.630

Represents differences between TSC and TD that remained significant after FDR correction.