CUTANEOUS TACTILE LOCALIZATION

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Abstract
In 2 experiments, the 1st on 10 human subjects, the 2nd on 1, the relation between the accuracy of cutaneous localization and stimulus strength was investigated. In a 3rd experiment, on 10 subjects, the accuracy of localization of stimuli involving mechanical deformation of the skin was compared with that of stimuli free from such deforming effects. The results indicate that accurate localization of cutaneous stimulation is possible when the sensibility to touch is present and is in abeyance when this form of sensibility is absent. Localization shares with sensibility to touch its independence of variations in the stimulus strength. It is only when the application of the stimulus used involves mechanical deformation of the skin that accurate localization is possible.

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