Mysterious form of referred sensation in man.

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Abstract
A phenomenon is described in which scratching a small excrescence on the skin on 1 part of the body is referred to a distant point as a prick or a tingle. Referral points are elicited mainly by absent-minded scratching of the skin when attention is not focused on the local sensation produced by the scratch. Location of referral points seems to follow definite patterns, in all instances, referral points occurred on the same side of the body as the stimulus points, each referral point was rostral to its stimulus, point, and each stimulus point was associated with only 1 referral point. Stimulus and referral points seem to have a fixed relationship. Pathways from a stimulus point to a referral point are not known at present. Although parallels can be drawn between this phenomenon and Bender''s double simultaneous stimulation phenomenon, both remain mysteries.