One of the applications of QEEG biofeedback is with children who are diagnosed with ADD/ADHD. These children have been shown to have more slow waves, such as theta and alpha, and fewer fast waves, such as SMR and beta, in their EEGs than non-ADD/ADHD
children of comparable age, according to Monastra and colleagues in 1999. The biofeedback technique provides QEEG therapy for ADD/ADHD children and trains for a decrease in theta or alpha and an increase in beta or SMR, while simultaneously keeping facial EMG levels at an acceptable level. The specific protocol requires a QEEG assessment to determine which specific bandwidth and microvolt levels will be trained. Several studies have been published that clearly demonstrate that the EEG patterns change according to the direction of training and that clinical improvements are observed with successful training. The number of sessions necessary is usually 40 to 60, depending on how quickly the EEG changes and the amount of behavioral improvements observed. It takes the brain longer to learn to control its own processes than body organ systems; therefore, the number of sessions needed for this protocol is greater than that typically required in most biofeedback applications. An additional reason for the greater number of sessions needed in QEEG biofeedback may be that we do not know how to best train the brain to change its functioning.
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