Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Top four panels: EEG traces for SomnoHD (blue) and cEEGrid (green). Bottom panel: Average relative power in the alpha (8–16 Hz) and delta (1–4 Hz) frequency bands depicted for SomnoHD and cEEGrid. Not all subjects had 5 h worth of NREM recording, meaning that the number of subjects included in the average decreases with time.
