• “Neurology is the science of the structure and all of the actions of the nervous system in health and in disease, in man and in animals, in the foetal, the infantile and the adult organism.”

Zülch KJ. The place of neurology in medicine and its future; Handbook of Neurology, Vinken & Bruyn eds. North Holland Publishing Company, Amsterdam 1969 (Cilt I sayfa 1-44)

• ‘Noroloji (sinirbilim)” sağlıkta ve hastalıkta, insanda ve hayvanda, cenin, bebek ve erişkin organizmada sinir sisteminin yapısı ve tüm işlevlerini inceleyen bilim dalıdır’