Olausson H, Norrsell U, Göthner K, Wallin B G
Department of Physiology, Göteborg University, Sweden.
Muscle Nerve. 1997 Nov;20(11):1414-21. doi: 10.1002/(sici)1097-4598(199711)20:11<1414::aid-mus9>3.0.co;2-d.
Examination of tactile directional sensibility, i.e., the ability to tell the direction of an object's motion across the skin, has been recommended by several authors for examination of patients with somatosensory disorders. Recent findings about the physiological mechanisms underlying directional sensibility suggested possibilities to further improve the test. In the present investigation a test was constructed that allowed a semiquantification of the directional sensibility of six body areas within 20 min. Normal values were obtained by testing healthy subjects (n = 40), and the normal values were compared to those obtained in a group of patients with tactile symptoms (n = 20). Ten of the patients had abnormal sensory conduction in one or several nerves, and they also had abnormal directional sensibility. Hence, examination of directional sensibility, according to the present protocol, provides a semiquantitative test that appears to be as sensitive as electrophysiological measurement of conduction in detecting dysfunction in tactile nerves.
几位作者建议对体感障碍患者进行触觉方向感检查，即辨别物体在皮肤上运动方向的能力。最近关于方向感潜在生理机制的研究结果为进一步改进该测试提供了可能。在本研究中，构建了一种测试方法，可在20分钟内对六个身体部位的方向感进行半定量评估。通过对健康受试者（n = 40）进行测试获得了正常值，并将这些正常值与一组有触觉症状的患者（n = 20）所获得的值进行了比较。其中10名患者在一条或多条神经中存在感觉传导异常，并且他们的方向感也不正常。因此，根据本方案进行的方向感检查提供了一种半定量测试，在检测触觉神经功能障碍方面似乎与电生理传导测量一样敏感。
