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[Interhemispheric EEG coherence in men with abnormal sexual behavior]

O I Ivashchenko, A V Eliseev, A A Tkachenko

    Zhurnal Nevrologii I Psikhiatrii Imeni S.S. Korsakova
    |January 1, 1997
    PubMed
    Summary
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    Individuals with abnormal sexual behavior and paraphilia show altered brain activity. Their electroencephalogram (EEG) reveals increased interhemispheric coherence, suggesting reduced functional brain lateralization.

    Area of Science:

    • Neuroscience
    • Psychiatry
    • Forensic Psychology

    Background:

    • Abnormal sexual behavior and paraphilias are complex conditions.
    • Understanding the neurobiological underpinnings is crucial for effective intervention.
    • Interhemispheric interactions play a key role in cognitive and behavioral regulation.

    Purpose of the Study:

    • To investigate interhemispheric interactions in individuals with abnormal sexual behavior.
    • To evaluate electroencephalogram (EEG) coherence patterns during different states of consciousness and cognitive tasks.
    • To explore potential links between EEG findings and paraphilias.

    Main Methods:

    • Analysis of electroencephalogram (EEG) coherence in symmetric brain regions.
    • Assessment during various levels of wakefulness (passive and active).

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  • Utilizing cognitive tests designed to preferentially activate specific brain hemispheres.

    • Main Results:

    • Individuals with sexual delinquency and paraphilia exhibited a diffuse increase in alpha-activity interhemispheric coherence.
    • Local elevations in theta-activity interhemispheric coherence were observed.
    • These findings suggest potential disruptions in cortical-subcortical interactions and cortical processes.

    Conclusions:

    • The study suggests a decreased degree of functional hemispheric lateralization in individuals with paraphilias.
    • Observed EEG alterations may indicate underlying neurobiological differences.
    • Further research is warranted to explore the implications for treatment and understanding of these conditions.