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EEG Markers of Suicidal Ideation in Depressive Female Adolescents

Published online by Cambridge University Press:  01 September 2022

A. Iznak ,
E. Iznak ,
T. Medvedeva ,
E. Damyanovich  and
I. Oleichik
A. Iznak*
Affiliation:
Mental Health Research Centre, Laboratory Of Neurophysiology, Moscow, Russian Federation
E. Iznak
Affiliation:
Mental Health Research Centre, Laboratory Of Neurophysiology, Москва, Russian Federation
T. Medvedeva
Affiliation:
Mental Health Research Centre, Department Of Clinical Psychology, Moscow, Russian Federation
E. Damyanovich
Affiliation:
Mental Health Research Centre, Laboratory Of Neurophysiology, Moscow, Russian Federation
I. Oleichik
Affiliation:
Mental Health Research Centre, Department Of Endogenous Mental Disorders And Affective Conditions, Moscow, Russian Federation
*
*Corresponding author.

Abstract

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Introduction

Timely detection of suicidal thoughts is one of the ways to prevent suicide. Use the psychiatric interview only for this purpose in adolescents is often insufficient due to poor compliance. Thus, the search for objective neurophysiological markers of suicidal ideation in adolescents seems to be actual.

Objectives

The aim of the study was to reveal the relationships between pre-treatment EEG parameters and intensity of suicidal ideation in depressive female adolescents.

Methods

72 female depressive patients (all right-handed, age 16–25, mean 18,2±2.6 years old) were enrolled in the study. Pre-treatment total HDRS-17 scores varied from 13 to 43 (mean 26,9±7.5). Multichannel eyes closed EEG was recorded, and absolute spectral power was calculated in 8 narrow frequency sub-bands. All patients answered the inventory on intensity of suicidal thoughts. Spearman’s correlations between pre-treatment EEG parameters and suicidal ideation scores were analyzed.

Results

Scores of intensity of suicidal ideation correlated positively (p<0.05÷0.01) with values of EEG alpha2 (9-11 Hz) spectral power in F7, F8, F4, C3, C4, T4, P4 and O2 EEG leads, as well as with values of EEG delta (2-4 Hz) spectral power in F7, F3 and C3 EEG leads (p<0.05).

Conclusions

The intensity of suicidal ideation in depressive female adolescents associates with wide propagation of EEG alpha2, especially over the right hemisphere, and with EEG signs of decreased functional state of anterior regions of the left hemisphere. The study supported by RBRF grant No.20-013-00129a.

Disclosure

No significant relationships.

Keywords

female adolescentssuicidal ideation scoresquantitative EEG
Type
Abstract
Information
European Psychiatry , Volume 65 , Special Issue S1: Abstracts of the 30th European Congress of Psychiatry , June 2022 , pp. S182
Creative Commons
Creative Common License - CCCreative Common License - BY
This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright
© The Author(s), 2022. Published by Cambridge University Press on behalf of the European Psychiatric Association
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