Table 1.

Hierarchical Multiple Regression Results for Gamma Response Power on Cortical Thickness (CT) and Peak Gamma Frequency

Model	b	SE	t	β	F	R²	∆F	∆R²	95% CI
Simple regression of gamma response power on cortical thickness
Intercept	−2.67	1.53	−1.74		7.56^**	.08			(−5.72, 0.38)
CT	2.20	0.80	2.75^**	0.29					(0.61, 3.80)
Simple regression of peak gamma frequency on cortical thickness
Intercept	103.46	24.11	4.29^****		4.68^*	.05			(55.51, 151.41)
CT	−27.25	12.60	−2.16^*	−0.23					(−52.32, −2.19)
Simple regression of gamma response power on peak gamma frequency
Intercept	2.52	0.37	6.80^****		8.09^**	.09			(1.79, 3.26)
Frequency	−0.02	0.01	−2.84^**	−0.30					(−0.03, −0.01)
Hierarchical regression of gamma response power on cortical thickness and peak gamma frequency
Intercept	−1.04	1.65	−0.63		6.67^***	.14			(−4.32, 2.25)
CT	1.77	0.80	2.21^*	0.23					(0.18, 3.37)
Frequency	−0.02	0.01	−2.32^*	−0.24			5.39^*	.06	(−0.03, −0.002)

Note. N = 85. b = unstandardized regression coefficient. SE = standard error. β = standardized regression coefficient. ΔF = F change. ΔR² = R² change. CI = confidence interval.

p < .05.

^**

p < .01.

^***

p < .005.

^****

p < .001.