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[Physiological parameters of masseter and temporal reflexes in man]
Journal De Physiologie
|January 1, 1984
Summary
This study measured jaw muscle reflexes in humans using electromyography. Latency times and silent periods differed between masseter and temporal muscles, reflecting their distinct functions and contraction strength.
Area of Science:
- Neuroscience
- Physiology
- Biomedical Engineering
Context:
- Investigates human jaw muscle reflex activity using global electromyography.
- Utilizes mechanical chin shock to elicit responses in masseter and anterior temporal muscles.
Purpose:
- To quantify and compare latency time and silent period durations in human jaw muscles.
- To explore the neurological and functional factors influencing reflex activity variations.
Summary:
- Average latency times were 7.8 ms (masseter) and 10 ms (temporal).
- Average silent periods were 36 ms (masseter) and 44 ms (temporal).
- Variations in latency are linked to neurological pathways, while silent period differences relate to muscle function and contraction strength.
Impact:
- Provides insights into the differential physiological properties of human masticatory muscles.
- Contributes to understanding neuromuscular control mechanisms in the jaw.
- Highlights the influence of muscle function and contraction force on reflex responses.