Table 3.

Results of mixed model analysis to determine the association between high-gamma activity during the sentence judgement period and those during working memory maintenance/scanning operations. The level of significance was set at p-value at ≤ 0.005, invoking Bonferroni correction for multiple comparisons within 10 regions of interest. HG: high-gamma. WM: working memory.

(A) Superior temporal region	Estimate (95% CI)	t-value	p-value	(F) Middle frontal region	Estimate (95% CI)	t-value	p-value
HG WM maintenance	0.181 (−0.042 to 0.403)	1.604	0.111	HG WM maintenance	0.006 (−0.256 to 0.267)	0.043	0.966
HG WM scanning	0.280 (0.113 to 0.448)	3.314	0.001	HG WM scanning	0.482 (0.265 to 0.699)	4.389	0.000
Hemisphere	0.016 (−0.019 to 0.052)	0.970	0.348	Hemisphere	0.071 (−0.004 to 0.146)	1.988	0.063
Patient age	0.000 (−0.002 to 0.002)	−0.249	0.808	Patient age	0.001 (−0.003 to 0.005)	0.559	0.584
(B) Middle temporal region	Estimate (95% CI)	t-value	p-value	(G) Inferior frontal region	Estimate (95% CI)	t-value	p-value
HG WM maintenance	0.074 (−0.169 to 0.317)	0.604	0.547	HG WM maintenance	0.155 (−0.203 to 0.513)	0.858	0.393
HG WM scanning	0.393 (0.180 to 0.607)	3.635	0.000	HG WM scanning	0.262 (0.022 to 0.503)	2.158	0.033
Hemisphere	0.030 (−0.015 to 0.075)	1.335	0.188	Hemisphere	0.105 (0.039 to 0.172)	3.232	0.003
Patient age	0.000 (−0.003 to 0.002)	−0.198	0.845	Patient age	0.000 (−0.003 to 0.004)	0.186	0.855
(C) Inferior temporal region	Estimate (95% CI)	t-value	p-value	(H) Orbitofrontal region	Estimate (95% CI)	t-value	p-value
HG WM maintenance	0.242 (−0.066 to 0.550)	1.558	0.123	HG WM maintenance	−0.135 (−0.542 to 0.271)	−0.662	0.510
HG WM scanning	0.316 (0.112 to 0.519)	3.082	0.003	HG WM scanning	0.407 (0.065 to 0.750)	2.360	0.020
Hemisphere	0.056 (0.000 to 0.113)	2.011	0.051	Hemisphere	0.059 (−0.022 to 0.140)	1.468	0.149
Patient age	−0.001 (−0.004 to 0.002)	−0.761	0.455	Patient age	−0.004 (−0.009 to 0.002)	−1.318	0.206
(D) Fusiform region	Estimate (95% CI)	t-value	p-value	(I) Inferior precentral region	Estimate (95% CI)	t-value	p-value
HG WM maintenance	−0.103 (−0.357 to 0.152)	−0.801	0.425	HG WM maintenance	0.178 (0.049 to 0.307)	2.732	0.007
HG WM scanning	0.264 (0.021 to 0.506)	2.158	0.033	HG WM scanning	0.622 (0.503 to 0.740)	10.365	0.000
Hemisphere	0.021 (−0.044 to 0.086)	0.665	0.512	Hemisphere	0.037 (−0.039 to 0.113)	1.041	0.315
Patient age	0.000 (−0.004 to 0.003)	−0.066	0.948	Patient age	0.003 (−0.001 to 0.007)	1.501	0.155
(E) Supramarginal region	Estimate (95% CI)	t-value	p-value	(J) Inferior postcentral region	Estimate (95% CI)	t-value	p-value
HG WM maintenance	0.029 (−0.212 to 0.270)	0.238	0.812	HG WM maintenance	0.201 (0.016 to 0.386)	2.155	0.033
HG WM scanning	0.250 (0.082 to 0.418)	2.945	0.004	HG WM scanning	0.751 (0.624 to 0.878)	11.699	0.000
Hemisphere	0.028 (−0.031 to 0.087)	1.006	0.329	Hemisphere	0.027 (−0.039 to 0.094)	0.867	0.398
Patient age	0.001 (−0.002 to 0.004)	0.824	0.420	Patient age	0.003 (−0.001 to 0.006)	1.560	0.136