The influence of extraversion on brain activity at baseline and during the experience and expectation of visceral pain

James K. Ruffle, Adam D. Farmer, Michiko Kano, Vincent Giampietro, Qasim Aziz, Steven J. Coen

研究成果: Article査読

9 被引用数 (Scopus)

抄録

Eysenck proposed a 'trait theory' of personality, the dimensions of which encompass numerous individual qualities. Whilst the influence of neuroticism on the brain processing of pain is well described, the role of extraversion, to date, has not been systematically investigated. Our aim was to address this knowledge gap using functional magnetic resonance imaging (fMRI).Extraversion was measured in 33 healthy volunteers (17 males, mean age 29. years [range 20-53]) using the Eysenck Personality Questionnaire. fMRI data were acquired using a 3T MRI scanner during rest, pain anticipation, and painful oesophageal balloon distention. The effect of extraversion on fMRI responses was determined.Extraversion scores varied (range 6-22) and did not influence pain threshold or rating. High extraversion was associated with significantly greater activity in the left cuneus during rest (p≤. 0.001), and the right insula during both anticipation (p≤. 0.0002) and pain (p≤. 0.0008). Low extraversion was associated with significantly greater brain activity in the bilateral precuneus, bilateral lingual gyrus, right inferior temporal gyrus, left fusiform gyrus and left superior parietal lobule during pain anticipation (all p≤. 0.0001).These results suggest that extraversion is associated with differences in the brain processing of visceral pain. Future studies of visceral pain, using fMRI, should control for extraversion.

本文言語English
ページ(範囲)248-253
ページ数6
ジャーナルPersonality and Individual Differences
74
DOI
出版ステータスPublished - 2015 2 1

ASJC Scopus subject areas

  • 心理学(全般)

フィンガープリント

「The influence of extraversion on brain activity at baseline and during the experience and expectation of visceral pain」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル