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.
Task design. A. Stimuli were presented in blocks of a single stimulus type with stimulus and block order randomized by participant. Stimuli were presented for 500 ms with an interstimulus interval of 1000 ms. The target stimulus (an ‘X’) was presented approximately 10% of the time to ensure participant attention. B. Examples of letter stimuli C. Examples of unnamable shape stimuli.
