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.
ERP and topographic plots for the mental imagery task (PO4 channel). An initial ERP is visible peaking positively at 100 ms and negatively at 200 ms, with the tonic spectral characteristics overtaking the remaining time period (from 0.5 s onward).
