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.
Display sequence on a given trial in experiment 1. The contrast of the stimuli is enhanced for illustrative purposes. A trial started with a fixation display presented for some random period between 200 and 700 ms, after which the two Gaussian patches were presented. The luminance of the target (right patch in this example) and distractor was resampled every 25 ms. The items were visible for 1 s.
