Fig. 2.
Example of Symbol Digit trials. First line indicates the symbols and corresponding digits, while the second line indicates an incorrect coding by the subject.
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.