We have previously reported that, from a phenomenological standpoint, the behavioral manifestations of cats chronically intoxicated with amphetamine parallel the evolution of the paranoid psychosis induced by the drug in humans. However, certain manifestations in the cat, such as frozen postures,
The notion of "dementia praecox" was introduced by Kraeplin to create a new mental illness like dementia paralytica of Bayle. Afterwards this new illness was called schizophrenia by Bleuler. From more half a century. I have studied this illness, specially the "Catatonia" theses researches pointed