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 time-courses of oxygenated hemoglobin concentration changes, (a) control and stress conditions at Ch14 and (b) control and stress conditions at Ch17. The vertical red dash-line marks the start of the task and the vertical green dash-line marks the end of the task condition.
