Analysis of information sources in references of the Wikipedia article "Motor control" in English language version.
In all these instances the act of inspiration is excited through the reflex function of the nervous system -- the sudden impression made on the skin stimulates the extremities of the incident nerves; the stimulus is conveyed by the incident nerves to the spinal nervous centre, and is thence transmitted back over the motor nerves of inspiration. That these respiratory movements are purely excito-motor, and performed without the intervention of sensation, in many of those instances in which the excited movements are most energetic, is proved by the case with which remarkable movements of respiration were occasioned by stimulating the surface in cases of syncope, hysteria, and epilepsy, cases in which sensation was altogether absent, and was only restored after repeatedly stimulating the surface, and so inducing deep reflex inspirations again and again by exciting the incident nerves. [Page 206]
