Nerve fibre velocity and refractory period distributions in nerve trunks.
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چکیده
منابع مشابه
Nerve fibre velocity and refractory period distributions in nerve trunks.
With the use of a double stimulus technique, nerve fibre velocity range measurements were performed over a single conduction distance in 13 normal subjects and over two conduction distances in another 12 normal subjects. The velocity ranges were found to be dependent upon the conduction distance, owing to unknown refractory period delays. Refractory period values were calculated for the 12 subj...
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Using a collision technique, the ulnar nerve was made refractory for a shorter distance normally covered in 0.5 ms or a longer distance covered in 1.5 ms. Studying the shorter refractory segment with paired shocks of maximal intensity, the test response first appeared (more than 5% of unconditioned response) at an interstimulus interval of 1.16 +/- 0.18 ms (mean +/- SD in 20 ulnar nerves). The ...
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Electromyographic single motor unit recordings were used to study the axonal conduction velocity and the axonal refractory period of 60 motor units in patients with severe motor neuron disease. Eighteen per cent of the motor units had abnormally low axonal conduction velocity probably due to secondary degenerative changes. Thirty-two per cent of the motor units had abnormally long axonal refrac...
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A complete and accurate description of the conduction properties of the entire population of nerve fibers within a peripheral nerve bundle has long been an important objective of clinical neuromuscular electrophysiology. Access to such information would increase the sensitivity and specificity of neuromuscular electrodiagnostics, and provide improved means of assessing nerve development, growth...
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ژورنال
عنوان ژورنال: Journal of Neurology, Neurosurgery & Psychiatry
سال: 1976
ISSN: 0022-3050
DOI: 10.1136/jnnp.39.7.694