Table 1.

Trial inclusion and exclusion criteria.

Type of Criteria	Details
Inclusion	•Aged ≥18 y •Ongoing CNP for ≥3 mo •Average pain rating in the last week of ≥4/10 •Head circumference 520-620 mm •Access to reliable internet connection and Wi-Fi at home
Exclusion	•Previous NFB training •Serious head injury (within 12 mo) •Traumatic brain injury, concussion, major neurologic disorder (eg, trigeminal neuralgia), history of seizures, psychiatric disorder •Implanted electronic neuromodulation device •Implanted pacemaker or loop recorder •Inability to provide informed consent and any change in medication or treatment planned in the 1 wk prior, during the intervention period, or in 12 wk postintervention, while EEG baselines are being recorded •Active participation in a different clinical trial