A custom designed system to measure corticospinal tract jitter
| Autor: | Marjan Mihelin, Rajka M. Liscic |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
Engineering
medicine.medical_specialty Pyramidal Tracts Latency (audio) Electromyography Clinical neurophysiology Signal Electromagnetic Fields Data acquisition Software Microcomputers medicine Humans Muscle Skeletal Jitter Brain Mapping medicine.diagnostic_test business.industry General Neuroscience Motor Cortex Electrical engineering Electric Stimulation body regions Corticospinal tract Neurology (clinical) business Computer hardware |
| Zdroj: | Electroencephalography and Clinical Neurophysiology/Electromyography and Motor Control. 109:194-197 |
| ISSN: | 0924-980X |
| DOI: | 10.1016/s0924-980x(97)00079-9 |
| Popis: | Typical latency of an individual limb muscle response to magnetic or electric stimulation of the human cortex is in the range of 10–50 ms. For the latency variability, i.e., jitter studies, a resolution of at least 20 μ s is needed. Commercially available EMG equipment needs custom-designed upgrading to allow for such studies. Two solutions were designed: (i) a hardware unit allowing an adjustable delay of data acquisition after the delivered stimuli; and (ii) diverting of the amplified biological signal and the EMG equipment trigger to an external computer equipped with an analogue-to-digital conversion (ADC) module. Custom-designed software made fast ADC possible during the whole period of data acquisition. Both concepts were applied to a Vickers Medical Mystro electromyograph, and have been successfully used in the Ljubljana (Slovenia) Institute of Clinical Neurophysiology for the last 2 years. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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