AMOBARBITAL, like other anesthetics, is usually thought of as causing people to speak "irrational nonsense." However, study shows that the verbal material produced under this drug is just as systematized as any other product of neural activity and can be as readily classified. It is thought that our knowledge of the physiology of mentation might profit by a systematic study of the productions of persons in amobarbital narcosis. Some of the results of such an analysis, derived from over 15,000 pages of material recorded from more than 60 patients in deep amobarbital sleep, are presented in this article.
There appears to be a specifically definable type of mental activity which becomes conspicuous when the brain has been acted upon by a suitable dose of the drug. The relative uniformity of type of utterance strongly suggests one thing, that the portion of the brain organization which does operate during narcosis, or
BRICKNER RM. A NEURAL FRACTIONATING AND COMBINING SYSTEM. AMA Arch NeurPsych. 1954;72(1):1–10. doi:10.1001/archneurpsyc.1954.02330010003001