Silent period measurement revives as a valuable diagnostic tool with transcranial magnetic stimulation
| Autor: | P.W. Schönle, Christian Knobloch, Martin Köhne, Bernhard A. Haug |
|---|---|
| Rok vydání: | 1992 |
| Předmět: |
Adult
Male Aging medicine.medical_specialty medicine.medical_treatment Hemiplegia Stimulation Electromyography Stimulus (physiology) 050105 experimental psychology 03 medical and health sciences 0302 clinical medicine Reference Values Internal medicine Bayesian multivariate linear regression medicine Humans 0501 psychology and cognitive sciences Aged Aged 80 and over Abductor pollicis brevis muscle medicine.diagnostic_test General Neuroscience 05 social sciences Parkinson Disease Middle Aged Transcranial Magnetic Stimulation Surgery Transcranial magnetic stimulation Cardiology Female Silent period Neurology (clinical) medicine.symptom Psychology 030217 neurology & neurosurgery Muscle Contraction Muscle contraction |
| Zdroj: | Electroencephalography and Clinical Neurophysiology/Evoked Potentials Section. 85:158-160 |
| ISSN: | 0168-5597 |
| DOI: | 10.1016/0168-5597(92)90081-l |
| Popis: | Following magnetic transcranial stimulation (TCS) a post-excitatory pause can be observed in surface electromyographic (EMG) recordings from pre-innervated muscles. We studied the duration of this silent period (SP) in the abductor pollicis brevis muscle while varying the stimulus intensity (SI) and the amount of the voluntary tonic contraction in 23 normal adults aged 20-78 years. A multivariate linear regression analysis revealed a positive correlation of SP with SI and a slight negative correlation with age. In 11 hemiparetic patients a relative increase of the SP was found on the affected side despite normal central motor conduction time. A marked shortening of the SP in relation to controls was observed in 6 parkinsonian patients. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|