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. Author manuscript; available in PMC: 2019 Dec 13.
Published in final edited form as: Neuroimage. 2018 Mar 15;174:463–471. doi: 10.1016/j.neuroimage.2018.03.022

Table 3. Regression of cortical parcellation regions of interest as predictors of 2-back accuracy.

βe represents standardized regression coefficients at the time of entry to the model. pe represents the alpha of the F statistic associated with R2Δat the time of entry into the model. βf represents the regression coefficients in the final model and pf represents the alpha value of the regression coefficient in the final model. GMV = gray matter volume; THICK = cortical thickness; MFG = middle frontal gyrus; OFC = orbitofrontal cortex.

Independent Variables βe pe R2 R2Δ βf pf
Covariates Age −.153 <.001 .023 .023 −.048 .093
Total Intracranial Volume .221 <.001 .070 .047 .016 .706
BOLD Activation Bilateral Caudal MFG .298 <.001 .156 .086 .254 <.001
Bilateral Superior Parietal Lobule .151 <.001 .168 .011 .278 <.001
Bilateral Medial OFC −.198 <.001 .203 .036 −.062 .154
Bilateral Frontal Pole −.117 .004 .209 .006 −.065 .112
Bilateral Inferior Parietal Lobule −.117 .029 .213 .004 −.126 .019
Bilateral Pars Opercularis −.091 .050 .216 .003 −.048 .356
Bilateral Transverse Temporal −.074 .041 .219 .003 −.066 .110
Bilateral Fusiform Gyrus .137 <.001 .228 .009 .155 <.001
Bilateral Supramarginal Gyrus −.140 .004 .234 .006 −.110 .021
Bilateral Isthmus of Cingulate −.116 .002 .241 .007 −.104 .006
Structural Indices Bilateral Lateral OFC GMV .157 <.001 .252 .011 .157 <.001
Bilateral Cuneus GMV .076 .027 .255 .003 .070 .042
Bilateral Caudal MFG THICK −.094 .001 .263 .008 −.094 .001