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.
The percentage when the matched symbol was chosen is represented as function of the session number (1 session = 10 trials; n = 6). The red dashed horizontal line indicates chance expectation (50% correct choices).
