Acculturation links to test scores but not cognitive decline
In an observational study of 5,976 Hispanic and Latino adults, lower acculturation was tied to lower global cognition but not seven-year cognitive decline.
Journal of Alzheimer's Disease
In an observational study, researchers analysed data from 5,976 middle-aged and older Hispanic and Latino adults. They assessed acculturation, the adoption of Anglo-American culture, using three measures at an initial visit. Participants were grouped into quartiles for each measure. Seven years later, those in the lowest quartiles for social and language acculturation scales had lower global cognitive scores than all other groups. For the third measure, the lowest quartile had lower global cognitive scores relative to the highest quartile. However, acculturation was not associated with changes in cognition over seven years, or with the prevalence of mild cognitive impairment, an early stage of cognitive decline.
Why it matters
In middle-aged and older adults, distinguishing between cognitive test performance and cognitive decline bears on how researchers identify pathological cognitive aging, including mild cognitive impairment.
Caveats
Because the study was observational, it cannot determine whether differences in acculturation caused the differences in cognitive scores. In addition, cognitive change was evaluated over a single seven-year period.
The paper
Show 12 more authors
Yijia Xue, Jordana Breton, Luis D Medina, Alejandra Morlett Paredes, Linda C Gallo, Jianwen Cai, Melissa Lamar, Amber Pirzada, Martha L Daviglus, Carmen R Isasi, Robert Kaplan, Sylvia Wassertheil-Smoller,San Diego State University · University of California
Journal of Alzheimer's Disease · 8 Oct 2026

