Neurofeedback is a form of biofeedback in which real-time measurements of brain activity are presented to the user, enabling them to learn voluntary self-regulation of specific neural signals. Typically based on eeg, neurofeedback systems measure oscillatory power, coherence, or other neural features and provide visual, auditory, or tactile feedback to reinforce desired brain states through operant conditioning principles.
Clinical applications of neurofeedback have been explored for attention-deficit/hyperactivity disorder, epilepsy, anxiety, depression, post-traumatic stress disorder, and cognitive enhancement. The Tübingen group’s work with slow cortical potential neurofeedback for BCI control in ALS patients represents an important intersection of neurofeedback and bci-and-neural-decoding research, demonstrating that patients can learn to modulate brain signals for communication purposes.
The field continues to grapple with questions of specificity, placebo effects, and the mechanisms underlying learning. Rigorous sham-controlled trial designs, standardized protocols, and quantitative outcome measures are needed to establish the efficacy of neurofeedback interventions. Advances in real-time signal processing, adaptive feedback algorithms, and the integration of neurofeedback with other stimulation-and-neuromodulation techniques are expanding the potential of self-regulation-based approaches to brain health and performance.