Elsevier

Neuroscience Letters

Volume 49, Issues 1–2, 24 August 1984, Pages 63-68
Neuroscience Letters

Recovery cycle of the masseter inhibitory reflex in man

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Abstract

The masseter inhibitory reflex from stimulation of the mental nerve has been recorded electromyographically in 10 healthy subjects. The recovery cycle of the two silent periods interrupting the tonic contraction of the masseter muscles have been studied with the paired shock technique. There was a clear dissociation between the recovery of early and late inhibition, the latter being far more affected by a preceding impulse. It is concluded that the two silent periods are mediated by separate neural nets. The differences with the recovery curves of the two components of the blink reflex are discussed.

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