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- Title
Brain structural correlates of upward social mobility in ethnic minority individuals.
- Authors
Schweiger, Janina I.; Capraz, Necip; Akdeniz, Ceren; Braun, Urs; Ebalu, Tracie; Moessnang, Carolin; Berhe, Oksana; Zang, Zhenxiang; Schwarz, Emanuel; Bilek, Edda; Meyer-Lindenberg, Andreas; Tost, Heike
- Abstract
Purpose: Perigenual anterior cingulate cortex (pACC) is a neural convergence site for social stress-related risk factors for mental health, including ethnic minority status. Current social status, a strong predictor of mental and somatic health, has been related to gray matter volume in this region, but the effects of social mobility over the lifespan are unknown and may differ in minorities. Recent studies suggest a diminished health return of upward social mobility for ethnic minority individuals, potentially due to sustained stress-associated experiences and subsequent activation of the neural stress response system. Methods: To address this issue, we studied an ethnic minority sample with strong upward social mobility. In a cross-sectional design, we examined 64 young adult native German and 76 ethnic minority individuals with comparable sociodemographic attributes using whole-brain structural magnetic resonance imaging. Results: Results showed a significant group-dependent interaction between perceived upward social mobility and pACC gray matter volume, with a significant negative association in the ethnic minority individuals. Post-hoc analysis showed a significant mediation of the relationship between perceived upward social mobility and pACC volume by perceived chronic stress, a variable that was significantly correlated with perceived discrimination in our ethnic minority group. Conclusion: Our findings extend prior work by pointing to a biological signature of the "allostatic costs" of socioeconomic attainment in socially disadvantaged upwardly mobile individuals in a key neural node implicated in the regulation of stress and negative affect.
- Subjects
SOCIAL mobility; MINORITIES; SOCIAL marginality; SOCIAL status; MAGNETIC resonance imaging; MINORITY stress; GRAY matter (Nerve tissue); JOB stress
- Publication
Social Psychiatry & Psychiatric Epidemiology, 2022, Vol 57, Issue 10, p2037
- ISSN
0933-7954
- Publication type
Article
- DOI
10.1007/s00127-021-02163-0