Volume of the right supramarginal gyrus is associated with a maintenance of emotion recognition ability.

Publisher: Public Library of Science Country of Publication: United States NLM ID: 101285081 Publication Model: eCollection Cited Medium: Internet ISSN: 1932-6203 (Electronic) Linking ISSN: 19326203 NLM ISO Abbreviation: PLoS One Subsets: MEDLINE

Original Publication: San Francisco, CA : Public Library of Science

Magnetic Resonance Imaging*; Emotions/*physiology ; Parietal Lobe/*diagnostic imaging ; Parietal Lobe/*physiology; Adult ; Aged ; Aged, 80 and over ; Brain Mapping ; Female ; Humans ; Male ; Middle Aged

Emotion recognition is known to change with age, but associations between the change and brain atrophy are not well understood. In the current study atrophied brain regions associated with emotion recognition were investigated in elderly and younger participants. Group comparison showed no difference in emotion recognition score, while the score was associated with years of education, not age. We measured the gray matter volume of 18 regions of interest including the bilateral precuneus, supramarginal gyrus, orbital gyrus, straight gyrus, superior temporal sulcus, inferior frontal gyrus, insular cortex, amygdala, and hippocampus, which have been associated with social function and emotion recognition. Brain reductions were observed in elderly group except left inferior frontal gyrus, left straight gyrus, right orbital gyrus, right inferior frontal gyrus, and right supramarginal gyrus. Path analysis was performed using the following variables: age, years of education, emotion recognition score, and the 5 regions that were not different between the groups. The analysis revealed that years of education were associated with volumes of the right orbital gyrus, right inferior frontal gyrus, and right supramarginal gyrus. Furthermore, the right supramarginal gyrus volume was associated with the emotion recognition score. These results suggest that the amount of education received contributes to maintain the right supramarginal gyrus volume, and indirectly affects emotion recognition ability.
Competing Interests: The authors declare no competing interests. The authors also declare that this study was funded by Kao Corporation. The funding body had no influence on design, analysis, and interpretation of the results. Y.M. and H.S. (H.S. is employed by Kao Corporation) were involved in MRI measurements, and were not involved in the subsequent data analysis or interpretation of the results. This does not alter our adherence to PLOS ONE policies on sharing data and materials.

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Date Created: 20210722 Date Completed: 20211110 Latest Revision: 20211110

20240829

PMC8297759

10.1371/journal.pone.0254623

34293003