Ancient origins of speed control during movement

Movement in animals is complex. Little has been known about how spinal inhibitory interneurons work to silence other neurons and related muscle groups in coordination with the active muscle groups across changing speeds. Now a research team has discovered in a study of zebrafish that there is a very orderly relationship between when these critical inhibitory neurons are born, their participation in different speeds of movement and what part of a motor neuron they innervate.

from Top Health News -- ScienceDaily https://ift.tt/2TmAo2r