Table 2.
Results of mixed model analysis to determine the association between high-gamma activity during the sentence listening 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 | 0.099 (−0.685 to 0.882) | 0.249 | 0.804 | HG WM maintenance | 0.110 (−0.067 to 0.288) | 1.232 | 0.220 |
| HG WM scanning | −0.649 (−1.239 to −0.059) | −2.176 | 0.031 | HG WM scanning | 0.110 (−0.037 to 0.257) | 1.472 | 0.143 |
| Hemisphere | 0.022 (−0.099 to 0.143) | 0.370 | 0.714 | Hemisphere | −0.008 (−0.059 to 0.042) | −0.352 | 0.729 |
| Patient age | −0.002 (−0.010 to 0.005) | −0.708 | 0.487 | Patient age | 0.001 (−0.002 to 0.004) | 0.725 | 0.479 |
| (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 | 0.153 (−0.082 to 0.387) | 1.287 | 0.200 | HG WM maintenance | 0.072 (−0.287 to 0.431) | 0.397 | 0.692 |
| HG WM scanning | 0.067 (−0.139 to 0.272) | 0.643 | 0.521 | HG WM scanning | 0.049 (−0.193 to 0.290) | 0.399 | 0.690 |
| Hemisphere | 0.020 (−0.022 to 0.061) | 0.948 | 0.348 | Hemisphere | 0.014 (−0.056 to 0.083) | 0.405 | 0.689 |
| Patient age | 0.001 (−0.001 to 0.003) | 0.765 | 0.453 | Patient age | 0.001 (−0.002 to 0.005) | 0.765 | 0.454 |
| (C) Inferior temporal region | Estimate (95% CI) | t-value | p-value | (H) Orbitofrontal region | Estimate (95% CI) | t-value | p-value |
| HG WM maintenance | 0.637 (0.362 to 0.913) | 4.586 | 0.000 | HG WM maintenance | −0.061 (−0.331 to 0.208) | −0.453 | 0.652 |
| HG WM scanning | −0.272 (−0.454 to −0.090) | −2.961 | 0.004 | HG WM scanning | 0.055 (−0.175 to 0.285) | 0.474 | 0.636 |
| Hemisphere | 0.031 (−0.015 to 0.077) | 1.353 | 0.184 | Hemisphere | 0.012 (−0.039 to 0.063) | 0.461 | 0.647 |
| Patient age | 0.001 (−0.001 to 0.004) | 0.924 | 0.365 | Patient age | 0.000 (−0.004 to 0.003) | −0.214 | 0.833 |
| (D) Fusiform region | Estimate (95% CI) | t-value | p-value | (I) Inferior precentral region | Estimate (95% CI) | t-value | p-value |
| HG WM maintenance | −0.083 (−0.282 to 0.115) | −0.832 | 0.407 | HG WM maintenance | 0.293 (0.097 to 0.488) | 2.952 | 0.004 |
| HG WM scanning | 0.044 (−0.144 to 0.232) | 0.462 | 0.645 | HG WM scanning | −0.086 (−0.260 to 0.088) | −0.983 | 0.328 |
| Hemisphere | −0.017 (−0.059 to 0.026) | −0.803 | 0.430 | Hemisphere | 0.015 (−0.061 to 0.091) | 0.416 | 0.682 |
| Patient age | 0.000 (−0.002 to 0.002) | 0.271 | 0.790 | Patient age | 0.006 (0.002 to 0.010) | 3.133 | 0.005 |
| (E) Supramarginal region | Estimate (95% CI) | t-value | p-value | (J) Inferior postcentral region | Estimate (95% CI) | t-value | p-value |
| HG WM maintenance | 0.023 (−0.145 to 0.191) | 0.272 | 0.786 | HG WM maintenance | 0.100 (−0.035 to 0.234) | 1.467 | 0.145 |
| HG WM scanning | −0.009 (−0.126 to 0.109) | −0.144 | 0.886 | HG WM scanning | −0.024 (−0.114 to 0.067) | −0.518 | 0.605 |
| Hemisphere | −0.001 (−0.043 to 0.040) | −0.071 | 0.944 | Hemisphere | 0.007 (−0.033 to 0.048) | 0.408 | 0.691 |
| Patient age | 0.001 (−0.001 to 0.003) | 1.082 | 0.294 | Patient age | 0.003 (0.000 to 0.005) | 2.618 | 0.022 |