Characteristics of the EEG emotional memory in patients with first episode paranoid schizophrenia
Suggested citation:
Mel'nikova TS, Sarkisyan VV. [Characteristics of the EEG emotional memory in patients with first episode paranoid schizophrenia]. Rossiiskii psikhiatricheskii zhurnal [Russian Journal of Psychiatry]. 2017;(5):68-72. Russian
The article presents the dynamics of the electroencephalogram (EEG) at the memory of positive, negative and neutral situations in 16 patients of paranoydnoy schizophrenia (F20.0) in the period of first-episode psychosis manifest befory initiation of active antipsychotic treatment. Presentation of neutral stimuli (geometric shapes) causes only mild reaction with a reduction of slow-wave EEG spectral delta and theta bands and a small suppression of the alpha rhythm. Remember of positive and especially negative situation dramatically changes the spectra of EEG frequency bands, increasing both slow wave and beta activity. This reorganization is generalized with significant increase dysrhythmia in the presence of synchronous discharges of slow and beta-activity. The dynamics of EEG rhythms indicates a close connection the functioning of emotional memory with the functioning subcortical structures of the brain that have a modulating effect on cortical processes. "Iinert source" of emotional memory traces from a previously tested emotional state play an important role in the development and maintenance of pathological states in patients with schizophrenia.
Keywords first episode of paranoid schizophrenia; emotional memory; EEG; spectral analysis
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