Figure 4.
Cup-type passive electrodes (right, from Justesen et al. [76]) and mesh-style electrodes (left, Geodesic sensor net from Electrical Geodesics, Inc.).
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.