Format

Send to

Choose Destination
Biol Psychiatry. 1990 Sep 15;28(6):488-94.

Computerized EEG in schizophrenic patients.

Author information

1
Department of Psychiatry, Yokohama City University School of Medicine, Japan.

Abstract

We undertook a study of electroencephalograms (EEGs) in 30 right-handed, untreated patients (27.3 +/- 10.0 years; hebephrenic, 16; paranoid, 12; residual, 2) who fulfilled ICD-9 criteria for schizophrenia and compared them with sex- and age-matched controls by using the percentage of power in six EEG frequency bands calculated as a fraction of total power. T-statistic significance probability mapping (t-SPM) showed that, compared with normal controls, schizophrenics had more slow activity (delta, theta, and alpha 1) in the parieto-occipital regions, and more fast activity (beta 1) in the occipital regions. In contrast, alpha 2 activity decreased strikingly in the occipital regions and this decreased activity extended over much of the head. These findings were thought to indicate both cerebral hypofunction and excitability in acute untreated schizophrenia.

PMID:
2223918
DOI:
10.1016/0006-3223(90)90482-h
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Elsevier Science
Loading ...
Support Center