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One particularly important individual dynamic known to influence the experience of pain is neuroticism, of which little is known about in visceral pain research. Our aim was to study the relationship between neuroticism, psychophysiologic response, and brain processing of visceral pain.

Thirty-one healthy volunteers (15 male; age range, 22–38 years) participated in the study. The Eysenck Personality Questionnaire was used to assess neuroticism. Skin conductance level, pain ratings, and functional magnetic resonance imaging data were acquired during anticipation of pain and painful esophageal distention. The effect of neuroticism was assessed using correlation analysis.

There was a wide spread of neuroticism scores (range, 0–22) but no influence of neuroticism on skin conductance level and pain tolerance or pain ratings. However, a positive correlation between …