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Abstract Ethnic–racial discrimination, the differential treatment of individuals based on ethnic or racial group membership, predicts poor mental health outcomes such as anxiety. This is supported by long-standing theories on the social determinants of health and minority stress. However, these theories are rarely expanded to neurobiological sciences, limiting our understanding of mechanisms underlying observed associations. One potential neurobiological pathway between ethnic–racial discrimination exposure and anxiety is that ongoing exposure to racially charged encounters presents imminent threats that may modify stress-sensitive neurocircuitry, like the amygdala. The current study evaluated whether amygdala volume mediated associations between ethnic–racial discrimination exposure and anxiety symptoms in Latina girls, a group exhibiting heightened levels of untreated anxiety and disproportionately subjected to ethnic–racial discrimination. Thirty predominantly Mexican-identifying Latina girls residing in Southern California (MAge = 9.76,SD = 1.11 years) completed a T1-weighted structural MRI scan. Using thePerceptions of Racism in Children and Youth, participants self-reported the prevalence and severity of various discriminatory experiences. Participants also self-reported their anxiety symptoms via theScreen for Child Anxiety and Related Emotional Disorders.Controlling for total intracranial volume and annual household income, an indirect effect of ethnic–racial discrimination on anxiety symptoms via left amygdala volume was observed,β = −0.28,SE = 0.17, BC 95% CI [−0.690, −0.017]. The current findings suggest that the left amygdala is sensitive to racialized threats in childhood and that stress-related alterations may, in part, contribute to elevated anxiety in Latina girls. Our data elucidate a potential mechanism by which this form of sociocultural stress can adversely impact mental health, particularly in the transition from middle childhood to early adolescence, a period marked by a host of interlinked neurophysiological and social changes.
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Race/ethnicity and Worry about the Threat of Flooding: A Mediation Analysis of Perceived Risk Versus Preparedness
Research has demonstrated that natural disasters, like flooding that are increasing with climate change, can have profound mental health effects. Moreover, these outcomes are not experienced evenly across the population with disadvantaged populations like racial/ethnic minorities and lower socio-economic status individuals being more likely to report psychological diagnoses and symptoms related to floods. However, the mechanisms that could account for the link between social vulnerability and worry about the threat of flooding remain poorly understood. In this analysis, we use a 2022 survey of Houston-area residents to examine how perceived flood risk and subjective flood preparedness relate to racial/ethnic differences in worry about the threat of flooding. We find that both individual-level and area-level race/ethnicity are significantly related to greater worry about the threat of flooding. Further, this is partially mediated by perceived flood risk, but not subjective flood preparedness. This suggests that policies and infrastructure priorities that reduce risk rather than prepare households for flooding would accomplish more in closing the gap in social disparities in mental health outcomes from flooding.
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- Award ID(s):
- 2121931
- PAR ID:
- 10544590
- Publisher / Repository:
- Taylor & Francis
- Date Published:
- Journal Name:
- Environmental Sociology
- ISSN:
- 2325-1042
- Page Range / eLocation ID:
- 1 to 18
- Subject(s) / Keyword(s):
- Worry/Anxiety Flood Risk Flood Preparedness Race/ethnicity Residential Segregation Disasters
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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- Free Publicly Accessible Full Text
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Accepted Manuscript1.0
- Journal Article:
- https://doi.org/10.1080/23251042.2024.2367265
