. Author manuscript; available in PMC: 2018 Aug 21.

Published in final edited form as: J Autism Dev Disord. 2015 Feb;45(2):292–297. doi: 10.1007/s10803-013-1842-7

Table 2.

Group (ASD or TDC) and topographic (frontal, central, parietal/occipital, left lateral and right lateral electrodes) statistical differences in the gamma frequency band

Frequency	Measure	F	p	$η_{p}^{2}$
Gamma (30–50 Hz)	(1) Group	F(1,30) = 0.94	0.340	0.030
	(2) Topography	F(4,120)= 2.66	0.036	0.081
	1 × 2	F(4,120) = 2.79	0.029	0.085

	Means by group and topography	ASD (std error)		TDC (std error)

Gamma (30–50 Hz)	Frontal	14.9 (0.7)		16.3 (0.6)
	Central	14.6(0.6)		15.5 (0.5)
	Parietal	17.9 (0.8)		17.8 (0.8)
	Left lateral	15.5(0.7)		16.2 (0.6)
	Right lateral	15.0 (0.7)		16.9 (0.6)

Bold values indicate statistically significant

Means for group by region are also included. Note the significant topography by group interaction. $η_{p}^{2}$ = partial eta squared. Age is a co-variate in this analysis