Naslov
A custom designed system to measure the corticospinal tract jitter

Autori
Mihelin, Marjan ; Liščić, Rajka M.

Izvornik
Electroencephalography and clinical neurophysiology : electromyography and motor control (0924-980X) 109 (1998), 2; 194-197

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
motor unit responses; magnetic stimulation; EMG responses; muscle; cortex; brain
(motor unit responses; magnetic stimulation; EMG responses. muscle; cortex; brain)

Sažetak
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 varaiability, i.e., jitter studies, a resulution of at least 20 us 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 succesfully used in the Ljubljana (Slovenia) Institute of Clinical Neurophysiology for the last two years.

Izvorni jezik
Engleski

Znanstvena područja
Javno zdravstvo i zdravstvena zaštita

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