Two Point Discrimination
- use either calipers or a opened paper clip with two parallel ends.
- demonstrate to the patient with eyes open by applying either one or two points of the stimulus to the fingerpad.
- ask the patient to close their eyes.
- deliver the stimulus and ask the patient to report whether they feel one or two points.
- normal values over the fingerpads are 2-4 mm.
Discrimination – 2 Point