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EPA-1676 – Long-term Effects of Placebo-controlled Prefrontal Eeg-neurofeedback Training in Healthy Subjects

Published online by Cambridge University Press:  15 April 2020

H. Engelbregt ,
D. Keeser ,
E. Suiker ,
S. Karch ,
J.B. Deijen  and
O. Pogarell
H. Engelbregt
Affiliation:
Department of Psychiatry and Psychotherapy, Ludwig-Maximilians-University, Munich, Germany
D. Keeser
Affiliation:
Department of Psychiatry and Psychotherapy Institute for Clinical Radiology, Ludwig-Maximilians-University, Munich, Germany
E. Suiker
Affiliation:
Hersencentrum Amsterdam, Ludwig-Maximilians-University, Munich, Germany
S. Karch
Affiliation:
Department of Psychiatry and Psychotherapy, Ludwig-Maximilians-University, Munich, Germany
J.B. Deijen
Affiliation:
Department of Psychiatry and Psychotherapy, Ludwig-Maximilians-University, Munich, Germany
O. Pogarell
Affiliation:
Department of Psychiatry and Psychotherapy, Ludwig-Maximilians-University, Munich, Germany

Abstract

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Introduction

In this study we evaluated long-term effects of frontal beta EEG-neurofeedback training (E-NFT) in healthy subjects. We hypothesized that E-NFT can change frontal beta activity and that changes in frontal beta EEG activity are accompanied by altered cognitive performance changes.

Methods

19 healthy women and 6 healthy men participated in this study. The subjects were randomly adjusted to a real E-NFT or a placebo E-NFT. EEG was recorded by means of a Deymed Truscan 32-channel system with 19 channels before E-NFT (t1), post to the training sessions (t2) and 3- years after E-NFT (t3). For E-NFT an average of respectively 14.3 and 13.2 training sessions were completed for experimental and control group. Each trainingsession took approximately 45 minutes; training-protocol: increase 12-18 Hz at Fz-electrode, auditory and visual feedback was given if EEG activity was increased at Fz for at least 1second.

Results

Compared to the sham E-NFT, which was used for the control group, real E-NFT increased beta activity in a predictable way (postmeasurement1 after NFB training, t2, post-measurement after 3years, t3). However, regarding our sample of healthy subjects E-NFT did not result in significantly improved cognitive performance.

Discussion

The main finding of the present study was an increase in cortical frontal beta activity after E-NFT. We also found evidence of a long-term effect on the basis of a follow-up measurement after three years. Based on our results we conclude that EEG-NFT can selectively change EEG beta activity, in the short and long term.

Type
P28 - Psychosurgery & Stimulation Methods (ECT, TMS, VNS, DBS)
Information
European Psychiatry , Volume 29 , Issue S1: Abstracts of the 22nd European Congress of Psychiatry , 2014 , pp. 1
Copyright
Copyright © European Psychiatric Association 2014
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