title: Quantitative EEG in schizophrenic patients before and during pharmacotherapy.
abstract: The aim of the study was to determine the possible differences in quantitative EEG parameters of schizophrenic patients before and during therapy with neuroleptics. First EEG recordings were obtained from schizophrenic patients (n = 50) who had not been taking any medicaments during the preceding 2 months. Second EEG recordings were obtained during the administration of neuroleptic therapy. Amplitude values of particular spectral segment, i.e. delta, theta, alpha 1, alpha 2, beta 1 and beta 2 (after fast Fourier transformation) were analyzed. The F3, F4, C3, C4, T3, T4, P3, P4, O1 and O2 regions were observed. The effect of pharmacotherapy manifested as a decrease in delta and beta 2 activities. The alterations of the delta spectrum were recorded in each patient subgroup (regardless of the neuroleptic used). The changes in beta 2 activity were registered in patients on haloperidol and fluphenazine.
authors.affiliation: Department of Psychiatry, KBC Rebro, Zagreb, Croatia.
authors.forename: D
authors.initials: D
authors.lastname: Begić
authors.forename: L
authors.initials: L
authors.lastname: Hotujac
authors.forename: N
authors.initials: N
authors.lastname: Jokić-Begić
mesh_terms: D000328:Adult; D014150:Antipsychotic Agents / Q000627:therapeutic use*; D001611:Beta Rhythm / Q000187:drug effects; D003700:Delta Rhythm / Q000187:drug effects; D004569:Electroencephalography / Q000187:drug effects*; D005260:Female; D005476:Fluphenazine / Q000627:therapeutic use; D005583:Fourier Analysis; D006220:Haloperidol / Q000627:therapeutic use; D006801:Humans; D008297:Male; D012559:Schizophrenia / Q000175:diagnosis* / Q000188:drug therapy* / Q000503:physiopathology; D013469:Sulpiride / Q000627:therapeutic use
chemical_list: D014150:Antipsychotic Agents; D013469:Sulpiride; D006220:Haloperidol; D005476:Fluphenazine