کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
338943 548009 2006 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Are semantic deficits in schizophrenia due to problems with access or storage?
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب رفتاری
پیش نمایش صفحه اول مقاله
Are semantic deficits in schizophrenia due to problems with access or storage?
چکیده انگلیسی

Semantic processing deficits are central to cognitive abnormalities in schizophrenia. Such semantic deficits may be related to either poor access or poor storage of semantic knowledge. 32 schizophrenia patients and 32 matched normal controls performed five semantic processing tasks that examined item-specific consistency over time, the word frequency effect and semantic priming. A subgroup of patients performed tasks on three separate occasions. It is generally assumed that a storage deficit is signalled by item-specific consistent performance, an exaggerated effect of word frequency, and the occurrence of hyperpriming; an access deficit is signalled by the absence of these effects. The data demonstrated item-specific consistency, a frequency effect and significant hyperpriming. The pattern is consistent with a storage deficit of semantic memory in schizophrenia.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Schizophrenia Research - Volume 82, Issues 2–3, 28 February 2006, Pages 121–134
نویسندگان
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