title: The plastic ridge device and moving two-point discrimination.
mesh_terms: D004056:Differential Threshold; D005385:Fingers / Q000294:innervation*; D006801:Humans; D009462:Neurology / Q000295:instrumentation*; D010969:Plastics; D014110:Touch / Q000502:physiology*
chemical_list: D010969:Plastics