Carl Jung On Dementia Praecox
The depotentiation of the association process or abaissement du niveau mental, which consequently has a downright dreamlike quality, seems to indicate that a pathogenic agent [Noxe] contributes to dementia praecox which is absent in, say, hysteria.
The characteristics of the abaissement were assigned to the pathogenic agent, which was construed as organically conditioned and likened to a symptom of poisoning (e.g., paranoid states in chronic poisoning) ~Carl Jung, CW 18, Pages 335
