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A Protocol for the Administration of Real-Time fMRI Neurofeedback Training
Published on: August 24, 2017
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Effects of virtual reality-based feedback on neurofeedback training performance-A sham-controlled study
Lisa M Berger1, Guilherme Wood1,2, Silvia E Kober1,2
1Institute of Psychology, University of Graz, Graz, Austria.
Frontiers in Human Neuroscience
|August 29, 2022
Summary
Three-dimensional virtual reality neurofeedback (EEG-NF) shows improved brain activation control compared to 2D feedback. This study suggests immersive VR enhances sensorimotor rhythm power increase in EEG-NF training.
Area of Science:
- Neuroscience
- Psychology
- Human-Computer Interaction
Background:
- Electroencephalography-neurofeedback (EEG-NF) is used to enhance cognitive function, but many users struggle to control brain activation.
- Virtual reality (VR) shows potential for improving training effects and motivation in neurofeedback.
Purpose of the Study:
- To investigate if 3D VR-based neurofeedback (NF) enhances sensorimotor rhythm (SMR) power increase more effectively than conventional 2D NF.
- To assess the impact of visual feedback modality on NF training performance after a single session.
Main Methods:
- 61 healthy adults were divided into 3D VR and 2D NF groups, both using VR goggles.
- Participants completed baseline and feedback runs aiming to increase SMR power (12-15 Hz) over Cz.
- Real and sham feedback conditions were employed to evaluate feedback effectiveness.
Main Results:
- The 3D VR group demonstrated a linear increase in SMR power across feedback runs, irrespective of real or sham feedback.
- The 2D NF group showed no significant changes in SMR power.
- These findings suggest general VR effects may contribute to improved performance in the 3D condition.
Conclusions:
- Visual feedback modality significantly impacts EEG-NF training performance.
- 3D VR-based neurofeedback offers advantages over conventional 2D feedback for enhancing SMR power.
- Immersive VR environments may facilitate better user engagement and control in neurofeedback training.
