Abstract
Results of a previous study demostrated transformation of the sustained activity of a muscle into rhythmic, tremor-like activity by stimulation of different motor centres. The optimum for this transformation was in the 4-7 Hz frequency band (resonance band). Sustained rhythmic stimulation with stimuli at 0.1-20 per second caused a normal frequency curve of the H reflex in subjects with intact motor systems. The resonance phenomenon of the frequency curve of the H reflex was in agreement with that found in previous studies stimulating the different motor centres. As this requires connections between spinal and higher motor centres, it is suggested that this investigation is appropriate for a detailed functional study of spinal cord lesions.
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Selected References
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- Ioku M., Nakatani S., Oku Y., Jinnai D. The H-reflex study with high frequency stimulation. Electromyography. 1969 May-Jul;9(2):219–227. [PubMed] [Google Scholar]
- Laitinen L. V., Ohno Y. Effects of thalamic stimulation and thalamotomy on the H reflex. Electroencephalogr Clin Neurophysiol. 1970 Jun;28(6):586–591. doi: 10.1016/0013-4694(70)90200-2. [DOI] [PubMed] [Google Scholar]
- MAGLADERY J. W., TEASDALL R. D., PARK A. M., LANGUTH H. W. Electrophysiological studies of reflex activity in patients with lesions of the nervous system. I. A comparison of spinal motoneurone excitability following afferent nerve volleys in normal persons and patients with upper motor neurone lesions. Bull Johns Hopkins Hosp. 1952 Oct;91(4):219–passim. [PubMed] [Google Scholar]
- OHYE C., KUBOTA K., HONGO T., NAGAO T., NARABAYASHI H. VENTROLATERAL AND SUBVENTROLATERAL THALAMIC STIMULATION. MOTOR EFFECTS. Arch Neurol. 1964 Oct;11:427–434. doi: 10.1001/archneur.1964.00460220089012. [DOI] [PubMed] [Google Scholar]
- SHIMAMURA M., LIVINGSTON R. B. Longitudinal conduction systems serving spinal and brain-stem coordination. J Neurophysiol. 1963 Mar;26:258–272. doi: 10.1152/jn.1963.26.2.258. [DOI] [PubMed] [Google Scholar]
- STERN J., WARD A., Jr Inhibition of the muscle spindle discharge by ventrolateral thalamic stimulation. Its relation to parkinsonism. Arch Neurol. 1960 Aug;3:193–204. doi: 10.1001/archneur.1960.00450020073011. [DOI] [PubMed] [Google Scholar]
- Stern J., Mendell J., Clark K. H reflex suppression by thalamic stimulation and drug administration. J Neurosurg. 1968 Oct;29(4):393–396. doi: 10.3171/jns.1968.29.4.0393. [DOI] [PubMed] [Google Scholar]
- Tóth S., Vajda J., Zaránd P. The study of recovery and modification of the evoked potentials and motor answers in the motor system. Acta Neurochir (Wien) 1977;(Suppl 24):151–157. doi: 10.1007/978-3-7091-8482-0_20. [DOI] [PubMed] [Google Scholar]
- Tóth S., Zaránd P., Lázár L. The role of the cortex and subcortical ganglia in the evoked rhythmic motor activity. Acta Neurochir (Wien) 1974;Suppl 21:25–33. doi: 10.1007/978-3-7091-8355-7_4. [DOI] [PubMed] [Google Scholar]
- Tóth S., Zaránd P., Lázár L., Vajda J. Effect of voluntary innervation on the evoked potential of the motor system. Confin Neurol. 1975;37(1-3):49–55. doi: 10.1159/000102711. [DOI] [PubMed] [Google Scholar]
- YANAGISAWA N., NARABAYASHI H., SHIMAZU H. THALAMIC INFLUENCES ON THE GAMMA MOTOR SYSTEM. Arch Neurol. 1963 Oct;9:348–357. doi: 10.1001/archneur.1963.00460100036003. [DOI] [PubMed] [Google Scholar]