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.
Example stimuli. Images (A–C) show examples of stimuli presented in the three experimental conditions: (A) No surround; (B) Orthogonal surround; and (C) Parallel surround. (D) Response screen with four circles signaling the possible positions where the target appeared.
