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. Author manuscript; available in PMC: 2023 Sep 1.
Published in final edited form as: Cortex. 2022 Jun 28;154:405–420. doi: 10.1016/j.cortex.2022.02.018

Figure 4. Left-lateralized atrophy related to greater total positive emotional experience and greater total smiling behavior.

Figure 4.

Voxel-based morphometry analyses (controlling for age, sex, diagnosis, MMSE, and TIV) revealed that (A) smaller gray matter volume in left superior temporal gyrus was associated with greater total positive emotional experience (pFWE<.05) and greater total smiling behavior (pFWE<.05). (B) Greater total positive emotional experience was associated with smaller gray matter volume in the left superior temporal gyrus, left dorsal anterior insula, and left orbitofrontal cortex (p<.001), and (C) greater total smiling behavior was associated with smaller gray matter volume in the left temporal lobe and middle frontal gyrus. Color bars represent T-scores at p<.001. Statistical maps are superimposed on the Montreal Neurological Institute template.