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April 17, 1909, Vol LII, No. 16 >

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ARTICLE | April 17, 1909

A NEW PRECISION ESTHESIOMETER

ALFRED GORDON, M.D.
JAMA. 1909;LII(16):1257. doi:10.1001/jama.1909.25420420037003j.
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ABSTRACT

I have frequently observed that the usual test for sensations in organic or functional nervous diseases is not very reliable. Sometimes the results obtained by one man are diametrically opposite to those obtained by another man, and not infrequently it happens that the results obtained at one examination are different from those obtained at another. The reason appeared to me to lie in the degree of pressure exercised by each examiner while applying the end of a needle or esthesiometer to the patient's skin. For example, in examining two symmetrical limbs for touch and pain, it is difficult to retain in memory the exact amount of pressure produced on the skin of one limb while the needle is carried to the other limb. A slight or marked difference may happen, and inferences are drawn as to a loss or diminished sensation, and consequently errors of diagnosis are easily made.

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