A Wireless EEG System for Neurofeedback Training

This paper presents a mobile, easy-to-maintain wireless electroencephalograph (EEG) system designed for work with children in school environment. EEG data acquisition platform is small-sized, battery-powered high sampling rate that scalable to different channel numbers. The was validated study of live z-score neurofeedback training quantitative (zNF-qEEG) typical-reading and those developmental dyslexia (DD). reads controls real-time (zNF) signals, synchronizing visual stimuli (low spatial frequency (LSF) illusions) the alpha/theta (z-α/θ) score neural oscillations. NF sessions were applied during discrimination LSF illusions contrasts. Visual feedback provided color cues remodulate activity DD their cognitive abilities. combined zNF-qEEG magnocellular parvocellular tasks (VTs) compensated deficits temporal areas affecting occipitotemporal pathway more left-hemispheric ventral brain post-training low-contrast illusion dorsal dysfunction high-contrast illusion. better α/θ scores postD temporoparietal middle occipital regions can be associated an improvement special processing, while precentral parietal cortices due advancement processing improvements reading speeds twice as after 4 months qEEG z-NF-VT training, three times fewer omitted words errors.