Quantitative EEG (qEEG)
Here's your citation in American Psychological Association (APA) format:
Quantitative EEG (qEEG). (n.d.). In Alleydog.com's online glossary. Retrieved from: https://www.alleydog.com/glossary/definition-cit.php?term=Quantitative+EEG+%28qEEG%29