Dr. W. Otuszewski: Of the importance of d. Association centers from Flechsig for research d. Development of the spirit, the language of the psychology of language, as well as the doctrine of speechlessness. Neurolog. Cental leaf. 98 № 4 and 5

The author conveys in some detail the theory of Flechsig about association centers and the meaning of them in mental life. Then, briefly conveying his observations over the development of man, spirit and tongue, the author finds that the evolution of both occurs in approximately the order in which, according to Flechsig, maturation (overlapping with melin) of physiologically and anatomically distinct regions occurs. in accordance with the fact that sensory centers are the first to develop, the evolution of the human spirit begins with the appearance of the ability to sensual perception; only for 4 ms. complex feelings appear (joy, fear, etc.), requiring the associative activity of the associative centers; consciousness is at this time; consciousness actually appears only in 2-3 years.