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Updated: Sep 14, 2025
A Protocol for the Administration of Real-Time fMRI Neurofeedback Training
Published on: August 24, 2017
Exploring the neural mechanisms of alpha-band EEG neurofeedback using portable devices: A pre-post comparative study
1Department of Biomedical Engineering, School of Information Science and Technology, Fudan University, Shanghai, 200433, China.
Objective:
This study aimed to clarify the neural mechanisms of alpha-band neurofeedback (NF) training using a portable EEG system and to evaluate its feasibility for cognitive enhancement in practical settings.
Methods:
Sixteen healthy young adults (M=24.28±1.31 years) completed eight sessions of alpha-band NF training. EEG signals were collected before and after training with a wearable 16-channel device. Neural changes were assessed using power spectral analysis, source localization (sLORETA), and functional connectivity analysis across five frequency bands.
Results:
Training led to increased power in theta, alpha, beta, and gamma bands. Source analysis showed decreased current density in lower frequencies and increased activity in higher bands, reflecting a shift toward more efficient neural processing and enhanced cognitive network engagement, as supported by previous studies. Functional connectivity revealed stronger synchronization among frontal, parietal, and occipital regions involved in working memory.
Conclusion:
Portable alpha-band neurofeedback training induces widespread neural modulation across multiple frequency bands and brain networks, supporting the feasibility of wearable EEG systems for accessible cognitive training.
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