Raj D V, Ingty K, Devanandan M S
Brain. 1985 Mar;108 ( Pt 1):95-102. doi: 10.1093/brain/108.1.95.
The Weber fraction was used as an index of the sensitivity with which subjects appreciated weights ranging from 20 to 500 g suspended from the middle finger. Normal subjects were able to appreciate weight when it caused cutaneous compression alone. The sensitivity increased when subjects lifted weights by flexing the metacarpophalangeal joint. This increase was more marked for weights ranging from 20 to 100 g than for weights ranging from 200 to 500 g. When subjects lifted weights by flexing the elbow joint, the sensitivity with which they appreciated weight was comparable to that from cutaneous compression alone. Leprous subjects having glove anaesthesia were unable to appreciate any weight up to 500 g when it caused cutaneous compression alone. However, they were able to appreciate weights above 200 g when they lifted weights by flexing the metacarpophalangeal or elbow joints.
韦伯分数被用作一种敏感度指标，用于衡量受试者对悬挂在中指上、重量范围从20克到500克的物体的感知能力。正常受试者在仅由皮肤受压引起时就能感知重量。当受试者通过弯曲掌指关节提起重物时，敏感度会提高。对于20克到100克的重量，这种提高比200克到500克的重量更为明显。当受试者通过弯曲肘关节提起重物时，他们感知重量的敏感度与仅由皮肤受压时相当。患有手套状麻醉的麻风病受试者在仅由皮肤受压引起时，无法感知任何重达500克的物体。然而，当他们通过弯曲掌指关节或肘关节提起重物时，能够感知超过200克的重量。
