nevrofeedback

Neurofeedback, also known as EEG biofeedback, is a therapeutic approach that uses real-time measurements of brain activity to teach self-regulation of neural function. Electrodes placed on the scalp record brain signals, which are translated into feedback presented as visuals, sounds, or other cues. During sessions, individuals learn to modulate their brain activity toward predefined targets, with the aim of improving cognitive or emotional functioning.

The most extensively studied use is for attention-deficit/hyperactivity disorder (ADHD). Other reported applications include anxiety, depression, insomnia, post-traumatic stress disorder, migraines, epilepsy, and traumatic brain injury. The strength of the evidence varies by condition and protocol; ADHD has relatively more robust support for specific training patterns, while evidence for other conditions remains mixed or preliminary. Neurofeedback is typically considered a nonpharmacological, adjunctive approach and is not universally accepted as a primary treatment.

Techniques and protocols often target particular EEG features, such as the theta/beta ratio or sensorimotor rhythm (SMR). Training relies on operant conditioning: when the brain produces the desired pattern, the feedback reinforces the state. Sessions commonly last 20 to 60 minutes and are conducted over multiple weeks or months, with many clinicians recommending a substantial number of sessions for meaningful effects.

Practical considerations include equipment quality, practitioner expertise, and regulatory context. Neurofeedback can be delivered in clinical settings or, with varying levels of supervision, as consumer devices for home use. Safety is generally favorable, though some individuals may experience fatigue, headaches, or frustration. As a medical or wellness intervention, it is important to consider evidence quality, individual needs, and available standard treatments.