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.
Mean points of peak responding as a function of group and session (top left graph). Mean maximum response rate as a function of group and session (top right graph). Mean ascending spread as a function of group and session (lower left graph). Mean descending spread as a function of group and session (lower right graph).
