顶叶疾病中快速触觉刺激的总和
Summation of rapid tactile stimuli in parietal lobe disease.
作者信息
Tegnér R
出版信息
J Neurol Neurosurg Psychiatry. 1982 Nov;45(11):975-8. doi: 10.1136/jnnp.45.11.975.
Abstract
The perception threshold for trains of rapid tactile pulses, applied to the index finger, has been measured in patients with parietal lobe lesions and in patients with median nerve lesions. The former patients had increased perception thresholds for single tactile pulses on the abnormal side. With successively prolonged pulse trains, the threshold decreased exponentially to reach a stable level after 150-400 ms. In contrast, the median nerve patients had increased perception thresholds for tactile pulses irrespective of pulse train duration.
摘要
已对患有顶叶病变的患者和患有正中神经病变的患者测量了施加于食指的快速触觉脉冲序列的感知阈值。前一组患者患侧单个触觉脉冲的感知阈值升高。随着脉冲序列持续时间的相继延长，阈值呈指数下降，在150 - 400毫秒后达到稳定水平。相比之下，正中神经病变患者无论脉冲序列持续时间如何，触觉脉冲的感知阈值均升高。
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