Electrical stimulation characteristics of denervated orbicularis oculi muscle
| Autor: | Yi Zhang, Cheng Jin, Yajing Sun, Hongchang Tian, Yiting Wang, Liang Geng, Keyong Li |
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| Rok vydání: | 2014 |
| Předmět: |
Male
Materials science Biophysics Facial Muscles Stimulation Dermatology Electromyography Electrode array medicine Animals Facial Nerve Injuries Orbicularis oculi muscle medicine.diagnostic_test Attenuation General Medicine Anatomy Evoked Potentials Motor Electric Stimulation Electrodes Implanted Psychiatry and Mental health Transverse plane Disease Models Animal Amplitude Electrode Female Neurology (clinical) Rabbits Biomedical engineering |
| Zdroj: | Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology. 36(8) |
| ISSN: | 1590-3478 |
| Popis: | This research is to study the electrical stimulation characteristics of orbicularis oculi muscle and the characteristics of the mechanical contraction. We observed the stimulus current diffusion regularity and its relationship with mechanical contraction in the orbicularis oculi muscle using an electrode gathering line. Under different stimulus intensities of 2 or 4 mA, the closer the recording electrodes were to the stimulating electrode, the larger was the amplitude. When the recording electrode and stimulating electrode distance increased, the amplitude declined linearly with decreasing function. In addition, current conduction across the muscle fiber was studied. Under different stimulus intensities of 2 or 4 mA, it was found that the closer the recording electrodes were to the stimulating electrode, the larger was the amplitude. When the recording electrode and stimulating electrode distance increased, the amplitude declined linearly with decreasing function. The transverse current reached a maximum 4 mA range, and increasing the current intensity did not increase the propagation range. Under different stimulation intensities, the larger the stimulus intensity, the greater is the potential change and the faster is the attenuation. Longitudinal current, even in the range of 6 mm, can still record electrical activity. While a transverse current diffuser has a maximum range of 4 mm, increasing the current intensity does not increase the propagation range. |
| Databáze: | OpenAIRE |
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