Source: Source: Gollan, TH., Salmon, DP., Montoya, RI., da Pena, E., Accessibility of the Nondominant Language in Picture Naming: A Counterintuitive Effect of Dementia on Bilingual Language Production. Neuropsychologia, 2009 Dec 24.
The study was conducted to test the assumption that bilinguals with dementia regress to using primarily the dominant language. In the study, participants named Boston Naming Test pictures in their dominant and non dominant languages.
Results demonstrated that bilingual subjects with AD were more likely to name some pictures in the nondominant language that they could not produce in their dominant language. These findings suggest that dominant language testing may provide the best assessment of language deficits in bilingual persons with AD; and argue against the common notion that the nondominant language is particularly susceptible to dementia.
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