METHODS FOR SLEEP RESEARCH USING HIGH-DENSITY EEG

Abstract

High-density EEG involves placing a large number of electrodes on the scalp to measure brain activity. This technique improves spatial resolution, addressing the limitations of traditional EEG, and allows for the source localization making it increasingly used in sleep research. However, due to the long duration of nocturnal recording, the various types of noise specific to sleep, and the dynamic changes in EEG across sleep stages, conducting high-density EEG during sleep presents unique challenges. This paper aims to share practical insights into high-density EEG in sleep research to help advance the field.