دانلود مقاله ISI انگلیسی شماره 77758
عنوان فارسی مقاله

تلاش برای کنترل : توجه اجرایی و احساس آگاهانه تلاش ذهنی منزوی

کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
77758 2005 11 صفحه PDF سفارش دهید محاسبه نشده
خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.
عنوان انگلیسی
Effortless control: executive attention and conscious feeling of mental effort are dissociable
منبع

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

Journal : Neuropsychologia, Volume 43, Issue 9, 2005, Pages 1318–1328

کلمات کلیدی
کنترل اجرایی؛ تلاش ذهنی؛ آگاهی؛ قشر قدامی مغر؛ مطالعه موردی
پیش نمایش مقاله
پیش نمایش مقاله تلاش برای کنترل : توجه اجرایی و احساس آگاهانه تلاش ذهنی منزوی

چکیده انگلیسی

Recruitment of executive attention is normally associated to a subjective feeling of mental effort. Here we investigate the nature of this coupling in a patient with a left mesio-frontal cortex lesion including the anterior cingulate cortex (ACC), and in a group of comparison subjects using a Stroop paradigm. We show that in normal subjects, subjective increases in effort associated with executive control correlate with higher skin-conductance responses (SCRs). However, our patient experienced no conscious feeling of mental effort and showed no SCR, in spite of exhibiting normal executive control, and residual right anterior cingulate activity measured with event-related potentials (ERPs). Finally, this patient demonstrated a pattern of impaired behavior and SCRs in the Iowa gambling task—elaborated by Damasio, Bechara and colleagues—replicating the findings reported by these authors for other patients with mesio-frontal lesions. Taken together, these results call for a theoretical refinement by revealing a decoupling between conscious cognitive control and consciously reportable feelings. Moreover, they reveal a fundamental distinction, observed here within the same patient, between the cognitive operations which are depending on normal somatic marker processing, and those which are withstanding to impairments of this system.

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