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FOLLOW‐UP STUDIES ON THE SLEEP EEG AFTER PREFRONTAL LOBOTOMY –Polygraphic Investigations during Spontaneous Nocturnal Sleep–
Author(s) -
HOSOKAWA Kiyoshi,
SAWADA Jyoji,
OHARA Yasuo,
MATSUDA Kiyoshi
Publication year - 1968
Publication title -
psychiatry and clinical neurosciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.609
H-Index - 74
eISSN - 1440-1819
pISSN - 1323-1316
DOI - 10.1111/j.1440-1819.1968.tb01422.x
Subject(s) - electroencephalography , non rapid eye movement sleep , slow wave sleep , delta wave , psychology , audiology , sleep (system call) , lobotomy , k complex , psychosurgery , sleep spindle , anesthesia , neuroscience , medicine , computer science , operating system
Summary By taking polygraphic recordings of EEG throughout spontaneous nocturnal sleep of the chronic schizophrenics with prefrontal lobotomy, the patterns of their EEG and sleep course were briefly described. It was found that the two cases who have had only lobotomy as the special psychiatric treatment showed somewhat less frequent REM stages as compared with the controls. In contrast, in other cases who have received special psychiatric treatments inclusive of frequent ECTs, insulin and fever therapy, it is worthy of note that there were observed somewhat different characteristics in the sleep course and in the appearance of the REM stage as compared to those of the two foregoing cases. As for the pattern of EEG, all the five cases revealed some unusual sleep patterns, showing slow waves of slightly low voltage in the deep stage, and spindle waves of alpha band overlapped on delta waves, appearing from the beginning of sleep course. There was seen irregular derangement in the relationship between the degree of depth of sleep and pulses as generally observable in the autonomic nervous function, and also a similar disorder in the relationship of the REM stage to pulses. That is to say, there was often observed a phase which cannot be construed as an inseparable factor between the REM stage and pulses. In this paper, we have discussed about the follow‐up studies of the lobotomized schizophrenic patients by polygraphic investigations, and assumed that there might persist some latent organic changes of the brain, especially in the cases who underwent lobotomy plus frequent ECTs, etc. treatments.