Averaged evoked response in patients with psychogenic pain

Abstract

SYNOPSIS Cortical somatosensory evoked responses to stimuli of various intensities were recorded in a group of patients with a diagnosis of ‘psychogenic pain’ and in three separate control groups. Differences emerged in the relationship between stimulus intensity and response amplitude. It is suggested that patients with psychogenic pain tended to deal with small stimuli in the way in which the other groups of patients dealt with large stimuli.