[Multivariate discriminant analysis of EEG power spectra in acute schizophrenic patients and healthy probands].
The electroencephalogram (EEG) during information processing is influenced by specific changes in brain electrical activity. Based on the theory of a disturbed information processing in schizophrenics we analysed auditory stimulus induced EEG changes by Fast Fourier Transformation. The most important of the significant stimulation dependent EEG power changes were measured in the 0.5-3.5 Hz and 10-13.5 Hz frequency bands in the left parietal lead. In a multivariate analysis the separation of the subjects examined into acute schizophrenics and normals was incorrect in only 21% of the cases (resubstitution rate): using the pi-method an error of 31% was estimated.
Schellenberg
R
R
Instituts für Pathologische Biochemie Medizinischen Akademie Magdeburg.
Knorr
W
W
Beyer
H
H
Kropf
S
S
Schindler
M
M
Bölsche
F
F
D000208:Acute Disease; D000293:Adolescent; D000328:Adult; D001143:Arousal / Q000502:physiology*; D004569:Electroencephalography; D005071:Evoked Potentials; D005260:Female; D005625:Frontal Lobe / Q000503:physiopathology; D006801:Humans; D008297:Male; D010296:Parietal Lobe / Q000503:physiopathology; D012559:Schizophrenia / Q000503:physiopathology*; D012815:Signal Processing, Computer-Assisted
Multivariate Diskriminanzanalyse von EEG-Leistungsspektren akut Schizophrener und Gesunder.