Reflex circuitry originating from the muscle spindles to the tibialis anterior muscle

Abstract

In this study we investigated whether the reflex excitatory and inhibitory inputs to motor neuron pools are uniformly or differentially distributed. We found that the distribution of monosynaptic excitatory (H-reflex) and reciprocal inhibitory inputs to different size motor neurons fitted gamma distributions with different skew values. This result can be interpreted as due to a differential distribution of afferent inputs on motor neurons.