The effects of neurofeedback training on the spectral topography of the electroencephalogram

摘要: Objective: To investigate the impact of EEG frequency band biofeedback (neurofeedback) training on spectral topography, which is presumed to mediate cognitive-behavioural effects. In order assess effect commonly applied neurofeedback protocols composition, two studies involving healthy participants were carried out. Methods: Experiment 1, subjects trained low beta (12–15 Hz), beta1 (15–18 and alpha/theta (8–11 Hz/5–8 Hz) protocols, with resting assessed before after training. The specific associations between learning indices each individual protocol changes in absolute relative topography was by means partial correlation analyses. Results 1 served generate hypotheses for 2, where randomly allocated independent groups beta, beta1, Spectral measures contrasted prior subsequent within group. Results: Only few particular found be consistent across studies, these did not correspond expectations based operant contingencies trained. Low-beta somewhat associated reduced post-training low-beta activity, while more reliably, frontal activity. Conclusions: results document that components does affect subjects, but effects do necessarily either frequencies or scalp locations addressed contingencies. association replicable reductions activity constitutes novel empirical neurophysiological evidence supporting inter alia training's purported role reducing agitation anxiety. Significance: These underline complexity neural dynamics involved self-regulation emphasize need validation predictable outcomes protocols.