percepto-combining form from L. percept-um(see percept), as perˌcepto-ˈmotora., applied to action apparently automatic, but really due to mental perception and experience: e.g. the blinking of the eye when any object comes close to it.1878tr.H. von Ziemssen's Cycl.Med. XIV. 697 These ‘percepto-motor’ reflex acts still exhibit a high degree of automatism.