دانلود مقاله ISI انگلیسی شماره 62555
عنوان فارسی مقاله

خطاهای گفتار در آفازی غیرروان تدریجی

کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
62555 2010 8 صفحه PDF سفارش دهید محاسبه نشده
خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.
عنوان انگلیسی
Speech errors in progressive non-fluent aphasia
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : Brain and Language, Volume 113, Issue 1, April 2010, Pages 13–20

کلمات کلیدی
آفازی غیرروان تدریجی ؛ واج شناسی؛ خطاهای گفتار
پیش نمایش مقاله
پیش نمایش مقاله خطاهای گفتار در آفازی غیرروان تدریجی

چکیده انگلیسی

The nature and frequency of speech production errors in neurodegenerative disease have not previously been precisely quantified. In the present study, 16 patients with a progressive form of non-fluent aphasia (PNFA) were asked to tell a story from a wordless children’s picture book. Errors in production were classified as either phonemic, involving language-based deformations that nevertheless result in possible sequences of English speech segments; or phonetic, involving a motor planning deficit and resulting in non-English speech segments. The distribution of cortical atrophy as revealed by structural MRI scans was examined quantitatively in a subset of PNFA patients (N = 7). The few errors made by healthy seniors were only phonemic in type. PNFA patients made more than four times as many errors as controls. This included both phonemic and phonetic errors, with a preponderance of errors (82%) classified as phonemic. The majority of phonemic errors were substitutions that shared most distinctive features with the target phoneme. The systematic nature of these substitutions is not consistent with a motor planning deficit. Cortical atrophy was found in prefrontal regions bilaterally and peri-Sylvian regions of the left hemisphere. We conclude that the speech errors produced by PNFA patients are mainly errors at the phonemic level of language processing and are not caused by a motor planning impairment.

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