Duration Quote by Charles Scott Sherrington
“If we denote excitation as an end-effect by the sign plus (+), and inhibition as end-effect by the sign minus (-), such a reflex as the scratch-reflex can be termed a reflex of double-sign, for it develops excitatory end-effect and then inhibitory end-effect even during the duration of the exciting stimulus.”
![“That our being should consist of two fundamental elements [physical and psychical] offers I suppose no greater inherent improbability than that it should rest on one only.” quote by Charles Scott Sherrington](https://sms4smile.com/quotes/img-quotes/d63/charles-scott-sherrington-2984_elements_that-our-being-should-consist-of-two-fun_1614198.jpg)
