Stepwise linear regression examining factors correlated with behavioral measures within the LLD and LLD-MCI groups. Modeled behaviors are based only on the significant regressor (listed on top of each plot) through forward selection. The regressors tested include age, gender, education, GMV, and the mean AFC values from the ten brain regions that showed differences.
Abbreviations – IOG: inferior occipital gyrus, MOG: middle occipital gyrus, FFG: fusiform gyrus, TP: temporal pole, PHG: parahippocampal gyrus, Hipp: hippocampus, MTG: middle temporal gyrus, PCC: posterior cingulate gyrus, GMV: gray matter volume, LLD: late-life depression, LLD-MCI: late-life depression with mild cognitive impairment, L/R: left/right.