Emotional modulation of pain-related evoked potentials

被引：17

作者：

Ring, Christopher ^{[1
]}

Kavussanu, Maria ^{[1
]}

Willoughby, Adrian R. ^{[1
]}

机构：

[1] Univ Birmingham, Sch Sport & Exercise Sci, Birmingham B15 2TT, W Midlands, England

来源：

BIOLOGICAL PSYCHOLOGY | 2013年 / 93卷 / 03期

基金：

英国经济与社会研究理事会;

关键词：

Attention; Emotion; Nociception; ELECTRICAL SOURCE ANALYSIS; EVENT-RELATED POTENTIALS; AFFECTIVE PICTURES; BRAIN POTENTIALS; STIMULATION; ATTENTION; CO2-LASER; RESPONSES;

D O I：

10.1016/j.biopsycho.2013.04.006

中图分类号：

B84 [心理学];

学科分类号：

04 ; 0402 ;

摘要：

To investigate whether cortical processing of trigeminal nociception is modulated by emotion, the N2 and P2 components of the pain-related evoked potential (PREP) were recorded in response to noxious stimulation of the supraorbital nerve while participants viewed neutral, pleasant and unpleasant pictures. The nerve was stimulated at 125% of pain threshold via a nociceptive-specific concentric electrode to selectively activate A-delta pain fibres. The N2 and P2 pain-related evoked potentials were similarly influenced by emotional priming: the amplitude of both potentials decreased monotonically from viewing neutral to pleasant to unpleasant pictures. These findings show that cortical processing of trigeminal nociception is modulated by emotion. We explain our findings in terms of the effects of picture viewing on attention. (C) 2013 The Authors. Published by Elsevier B.V. All rights reserved.

引用

页码：373 / 376

页数：4

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