information:extraction, stylistic:style_transfer, information:filtering
Reflex modulation

The underlying sites and mechanisms of reflex modulation are not fully understood. There is evidence that the output of sensory neurons is directly modulated during behavior—for example, through presynaptic inhibition. The effect of sensory input upon motor neurons is also influenced by interneurons in the spinal cord or ventral nerve cord and by descending signals from the brain.