کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4331745 1292875 2006 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Attentional modulation of early-stage visual processing in schizophrenia
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب (عمومی)
پیش نمایش صفحه اول مقاله
Attentional modulation of early-stage visual processing in schizophrenia
چکیده انگلیسی

This study shows that paying attention to the color of a visual stimulus is manifested by an early endogenous scalp-positive event-related brain potential (ERP) component, referred to as “selection positivity”, that emerges within the first 100 ms after stimulus onset in healthy observers. In contrast, recently ill and chronically ill schizophrenia patients as well as patients at high risk for schizophrenia all failed to show this early ERP component while attending to color. These results suggest that a relatively early stage of visual-selective processing in posterior extrastriate cortex is disrupted in schizophrenia.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Brain Research - Volume 1125, Issue 1, 13 December 2006, Pages 194–198
نویسندگان
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