Table 2. Zero-Order Correlations of Cortical Thickness in Selected Regions of Interest (ROI) with Resting State Heart Rate Variability (Study 1);
values represent correlation coefficients (r) and their respective p-values; ACC: anterior cingulate cortex; MFG: middle frontal gyrus; OFC: orbital frontal cortex; * and bold: highlights a significant correlation on the p < .05 level; ** and bold: highlights a significant correlation on the p < .01 level
| Study 1 | Left Hemisphere | Right Hemisphere | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
| ||||||||||||
| all subjects | older age | younger age | all subjects | older age | younger age | |||||||
|
| ||||||||||||
| r | p | r | p | r | p | r | p | r | p | r | p | |
| Caudal ACC | .059 | .723 | −.095 | .698 | −.100 | .683 | .110 | .509 | −.145 | .554 | .179 | .462 |
| Rostral ACC | .179 | .282 | −.096 | .697 | .137 | .575 | .206 | .215 | −.127 | .604 | .451 | .053 |
| Caudal MFG | .228 | .168 | .310 | .196 | −.059 | .812 | .116 | .489 | .086 | .726 | .125 | .610 |
| Rostral MFG | .094 | .574 | .318 | .184 | −.213 | .380 | .263 | .110 | .338 | .157 | .128 | .603 |
| Lateral OFC | .324* | .047 | .426 | .069 | .255 | .292 | .335* | .040 | .585** | .008 | −.024 | .922 |
| Medial OFC | .043 | .797 | .169 | .489 | −.225 | .354 | −.001 | .995 | −.077 | .754 | .003 | .989 |
| Pars opercularis | .039 | .817 | .244 | .313 | −.266 | .272 | .247 | .136 | .277 | .252 | .104 | .670 |
| Pars orbitalis | .263 | .110 | .206 | .397 | .209 | .389 | .259 | .116 | .517* | .023 | −.049 | .841 |
| Pars triangularis | .027 | .872 | −.131 | .593 | −.329 | .169 | .183 | .271 | .245 | .313 | −.107 | .662 |
| Superior frontal G. | .182 | .273 | −.110 | .655 | −.031 | .900 | .105 | .530 | −.033 | .893 | .050 | .838 |
| Frontal pole | .095 | .576 | .158 | .519 | .021 | .935 | .099 | .554 | .007 | .979 | −.012 | .962 |
| Insula | .240 | .147 | −.089 | .718 | .382 | .107 | .099 | .553 | .027 | .911 | .003 | .991 |