دانلود مقاله ISI انگلیسی شماره 30293
عنوان فارسی مقاله

غیر طبیعی مسیرهای اسکن بصری: نشانگر فیزیولوژیکی روانی هذیان در شیزوفرنی

کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
30293 1998 11 صفحه PDF سفارش دهید محاسبه نشده
خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.
عنوان انگلیسی
Abnormal visual scan paths: a psychophysiological marker of delusions in schizophrenia
منبع

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

Journal : Schizophrenia Research, Volume 29, Issue 3, 9 February 1998, Pages 235–245

کلمات کلیدی
مسیرهای اسکن بصری - آزار و شکنجه - هذیان - اسکیزوفرنیا -
پیش نمایش مقاله
پیش نمایش مقاله غیر طبیعی مسیرهای اسکن بصری: نشانگر فیزیولوژیکی روانی هذیان در شیزوفرنی

چکیده انگلیسی

The role of the visual scan path as a psychophysiological marker of visual attention has been highlighted previously (Phillips and David, 1994). We investigated information processing in schizophrenic patients with severe delusions and again when the delusions were subsiding using visual scan path measurements. We aimed to demonstrate a specific deficit in processing human faces in deluded subjects by relating this to abnormal viewing strategies. Scan paths were measured in six deluded and five non-deluded schizophrenics (matched for medication and negative symptoms), and nine age-matched normal controls. Deluded subjects had abnormal scan paths in a recognition task, fixating non-feature areas significantly more than controls, but were equally accurate. Re-testing after improvement in delusional conviction revealed fewer group differences. The results suggest state-dependent abnormal information processing in schizophrenics when deluded, with reliance on less-salient visual information for decision-making.

مقدمه انگلیسی

The role of the visual scan path as a psychophysiological marker of visual attention has been highlighted previously (Phillips and David, 1994). We investigated information processing in schizophrenic patients with severe delusions and again when the delusions were subsiding using visual scan path measurements. We aimed to demonstrate a specific deficit in processing human faces in deluded subjects by relating this to abnormal viewing strategies. Scan paths were measured in six deluded and five non-deluded schizophrenics (matched for medication and negative symptoms), and nine age-matched normal controls. Deluded subjects had abnormal scan paths in a recognition task, fixating non-feature areas significantly more than controls, but were equally accurate. Re-testing after improvement in delusional conviction revealed fewer group differences. The results suggest state-dependent abnormal information processing in schizophrenics when deluded, with reliance on less-salient visual information for decision-making.

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پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.