Hand construction of quadrifilar wire electrodes for electromyography.
Array electrodes have become increasingly popular for making surface and indwelling electromyographic (EMG) recordings. We describe a method for in-house construction of indwelling quadrifilar fine-wire electrodes. Quadrifilar electrodes facilitate the mapping of vector myoelectric signatures of motoneuron firing activities of the motor nucleus, a procedure referred to as EMG decomposition. The finished electrode has four detectors, each 50 mum in diameter, arranged in a rhombus pattern. Motor unit recruitment and firing information are aids to better understanding control deficits and behaviors evidenced in the final common pathway of the central nervous system.
Ahmed
Omar I
OI
Department of Otolaryngology, New York Medical College, Munger Pavilion, Room 170, Valhalla, New York 10595, USA.
Roark
Rick M
RM
D004566:Electrodes; D004576:Electromyography / Q000379:methods*; D006225:Hand / Q000502:physiology*; D006801:Humans; D009046:Motor Neurons / Q000502:physiology*; D011999:Recruitment, Neurophysiological