Note 58 — Chapter IV · Some General Considerations.

“Everybody agrees,” say Déjerine and Gauckler (op. cit., p. 214f), “that neurasthenia is a neurosis, i.e., a nervous disease without any known lesions.... Neurasthenia is due wholly to psychological factors which are essentially, if not exclusively determined by emotion.” They then proceed to compare the “materialistic” theories of neurasthenia, showing that they are all still merely speculative.