Results of this qualitative descriptive study suggest that nonlinear dynamical neurofeedback had a dramatic and meaningful positive effect on persistent symptoms experienced by breast cancer survivors, without any negative side effects. Participants in our sample found the neurofeedback sessions to be enjoyable and rec- ommend that they be offered to all cancer patients. Clinical trials with larger sample sizes are needed to corrob- orate our findings. Establishing clinical effectiveness could encourage adoption of neurofeedback into routine cancer care and health insurance coverage.

The neurofeedback protocol was feasible and resulted in significant decreases in perceived cognitive deficits, fatigue, sleep, and psychological symptoms.

Data from this limited study suggest that EEG biofeedback has potential for reducing the negative cognitive and emotional sequelae of cancer treatment as well as improving fatigue and sleep patterns.