کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4328850 | 1614193 | 2008 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Reciprocal activation of the orbitofrontal cortex and the ventrolateral prefrontal cortex in processing ambivalent stimuli
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علم عصب شناسی
علوم اعصاب (عمومی)
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چکیده انگلیسی
The neural basis of ambivalence has not yet been identified. We investigated the prefrontal cortical activations implicated in evaluative processing of ambivalent stimuli under the forced and non-forced response conditions. Cerebral blood flow was measured using H215O positron emission tomography in twelve normal volunteers during a modified word-stem completion task that was designed to evoke different conditions of ambivalence. The prefrontal cortical activations were restricted to the orbitofrontal cortex during the non-forced ambivalent condition, whereas the ventrolateral prefrontal cortex and the frontopolar cortex were activated in addition to the orbitofrontal cortex during the forced ambivalent condition. It is remarkable that the orbitofrontal cortex and the ventrolateral prefrontal cortex demonstrated a reciprocal activation pattern, which might be linked to the evaluative attitude toward the ambivalent stimuli.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Brain Research - Volume 1246, 30 December 2008, Pages 136-143
Journal: Brain Research - Volume 1246, 30 December 2008, Pages 136-143
نویسندگان
Young-Chul Jung, Hae-Jeong Park, Jae-Jin Kim, Ji Won Chun, Hye Sun Kim, Nam Wook Kim, Sang Jun Son, Maeng-Gun Oh, Jong Doo Lee,