Figure 2.
Illustration of the time course of stimulus presentation in an example trial. To view this figure in colour, please see the online issue of the Journal.
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.