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Computerized EEG and Brain Imaging Studies in Untreated Schizophrenic Patients: A Report of Seven Cases
Author(s) -
Miyauchi Toshiro,
Kishimoto Hideji,
Hagimoto Hiroshi,
Fujita Haruhiro,
Tanaka Kenkichi
Publication year - 1993
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.1440-1819.1993.tb01835.x
Subject(s) - electroencephalography , atrophy , lesion , nuclear medicine , medicine , brain mapping , alpha (finance) , psychology , positron emission tomography , audiology , radiology , neuroscience , pathology , surgery , construct validity , patient satisfaction
We undertook routine EEG, Z‐map, CT and PET scans in seven acute untreated schizophrenics. Routine EEGs showed slower activity in only one case. However, the Z‐map showed slower activity in all the cases. CT demonstrated brain atrophy in three of the cases, and PET revealed hypofrontality in two, right hypoparietality in four, and both conditions in one case. There was no relation between CT and PET or the Z‐map. However, a significant increase in alpha 1 activity was demonstrated on the Z‐map in cases who were found to be the parietal type on PET; this was not conspicuous in the frontal type on PET. Moreover, in three of the patients, the Z‐map findings were similar to the lesion indicated on PET.