کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5041078 1473953 2017 18 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Bilingual language intrusions and other speech errors in Alzheimer's disease
ترجمه فارسی عنوان
نفوذ زبان دو زبانه و دیگر خطاهای گفتاری در بیماری آلزایمر
کلمات کلیدی
دو زبانه، سوئیچینگ، خطاهای گفتار، بیماری آلزایمر، تشخیص، بلند خواندن،
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب شناختی
چکیده انگلیسی


- Bilinguals with AD produced more intrusions in reading aloud than matched controls.
- Sensitivity of intrusions to AD was greatest for dominant language targets.
- Language mixing deficits in AD may reflect a monitoring impairment.
- Speech errors produced in paragraph reading may be diagnostic of AD in bilinguals.

The current study investigated how Alzheimer's disease (AD) affects production of speech errors in reading-aloud. Twelve Spanish-English bilinguals with AD and 19 matched controls read-aloud 8 paragraphs in four conditions (a) English-only, (b) Spanish-only, (c) English-mixed (mostly English with 6 Spanish words), and (d) Spanish-mixed (mostly Spanish with 6 English words). Reading elicited language intrusions (e.g., saying la instead of the), and several types of within-language errors (e.g., saying their instead of the). Patients produced more intrusions (and self-corrected less often) than controls, particularly when reading non-dominant language paragraphs with switches into the dominant language. Patients also produced more within-language errors than controls, but differences between groups for these were not consistently larger with dominant versus non-dominant language targets. These results illustrate the potential utility of speech errors for diagnosis of AD, suggest a variety of linguistic and executive control impairments in AD, and reveal multiple cognitive mechanisms needed to mix languages fluently. The observed pattern of deficits, and unique sensitivity of intrusions to AD in bilinguals, suggests intact ability to select a default language with contextual support, to rapidly translate and switch languages in production of connected speech, but impaired ability to monitor language membership while regulating inhibitory control.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Brain and Cognition - Volume 118, November 2017, Pages 27-44
نویسندگان
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