کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4320193 | 1290853 | 2007 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Different modalities of painful somatosensory stimulations affect anticipatory cortical processes: A high-resolution EEG study
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علم عصب شناسی
علوم اعصاب سلولی و مولکولی
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چکیده انگلیسی
After each stimulus, the subject reported the perceived stimulus intensity. Surface Laplacian estimation of the EEG data spatially enhanced the anticipatory stimulus-preceding negativity (SPN), which reflects motivational relevance of the stimulus. Subjects perceived no difference in the intensity of the electrical versus laser stimuli in both painful and nonpainful conditions. However, the anticipatory SPN appeared over large scalp regions before painful laser but not electrical stimulation. The same was true for the nonpainful stimulations. The present results suggest that the motivational anticipatory cortical processes are induced by nonpainful and painful biologically/ecologically relevant laser stimuli rather than by “artificial” electrical stimuli with similar intensity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Brain Research Bulletin - Volume 71, Issue 5, 15 March 2007, Pages 475-484
Journal: Brain Research Bulletin - Volume 71, Issue 5, 15 March 2007, Pages 475-484
نویسندگان
Claudio Babiloni, Alfredo Brancucci, Paolo Capotosto, Claudio Del Percio, Gian Luca Romani, Lars Arendt-Nielsen, Paolo Maria Rossini,