Ludwig von Mises uses autistic in an unusual manner in the section heading Autistic Exchange and Interpersonal Exchange of his book Human Action, published in 1

Ludwig von Mises uses autistic in an unusual manner in the section heading Autistic Exchange and Interpersonal Exchange of his book Human Action, published in 1949. It would be interesting to see the context of the first known reference of the adjective autistic from 1942 to better understand von Mises' choice of the word in his context, but I can't seem to find more information other than the first use year.