EEG α training
Research Papers
Effects of neurofeedback-based EEG α and EEG β training in patients with chronically decompensated tinnitus
Background. Persisting tinnitus is an often devastating disease condition with restricted and rarely successful therapeutic options. Patients and methods. The present study investigates the therapeutic effect of short term neurofeedback-based EEG-Alpha- and EEG-Beta-training in 40 patients suffering from "chronic decompensated tinnitus". Patients were assigned to the Alpha or Beta group according to results of an initial EEG monitored stress-test. Four patients were excluded because they showed abnormal reactions in both EEG patterns. Results. During 12 sessions, 23 patients succeeded to increase EEG Alpha activity by 16% (p≤0.042) while 13 patients achieved no decrease of EEG Beta activity. However, both groups showed a significant reduction of subjective tinnitus annoyance by the end of the therapy (p≤0.001) Conclusions. The results indicate that neurofeedback may represent a new promising technique in the therapy of chronic decompensated tinnitus. However, it remains to be established whether the reduction of tinnitus annoyance results from the altered brain activity patterns supported by the neurofeedback learning process.
View Full Paper →Kontrolliertes EEG-Alpha-Feedback-Training bei Gesunden und Kopfschmerzpatientinnen
Headache patients and healthy controls underwent alpha-EEG feedback training in 12 sessions. The present study does not support the literature which reports alpha increase by feedback training. The study included a patient group receiving feedback, a patient control group receiving pseudofeedback, and a volunteer group receiving feedback. Increase of alpha EEG was observed under feedback and pseudofeedback. However, there was always more alpha during baseline times than during training times. Alpha increase over time is suggested to be a habituation effect. Headache pain decreased with training (within the boundaries of a placebo effect), and there was no difference in headache decrease between feed-back and pseudofeedback patients.
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