The visceromotor responses to colorectal distension and skin pinch are inhibited by simultaneous jejunal distension

AD Shafton, JB Furness, D Ferens, G Bogeski, SL Koh… - Pain, 2006 - Elsevier
Noxious stimuli that are applied to different somatic sites interact; often one stimulus
diminishes the sensation elicited from another site. By contrast, inhibitory interactions
between visceral stimuli are not well documented. We investigated the interaction between
the effects of noxious distension of the colorectum and noxious stimuli applied to the
jejunum, in the rat. Colorectal distension elicited a visceromotor reflex, which was quantified
using electromyographic (EMG) recordings from the external oblique muscle of the upper …