This paper presents the design of an esthesiometer and suggests some applications. The unique feature of the design is that both ends of the instrument hold plungers which depress a common spring. This feature enables the tester easily to apply contrasting stimuli with identical force. The plungers are threaded to hold accessories so that different stimuli can be applied with the same instrument. The esthesiometer has been used in a study of tactile sensitivity on two groups of children.
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