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.
Illustration of Sternberg Item Recognition Paradigm (SIRP). Each block started with presentation of the memorized set, which consisted of 1, 3, 5, or 7 letters. Then, single letters were presented in succession. Subjects' task was to press ‘1' on the keypad if the letter was a foil (not a letter in the memorized set), and to press ‘2' if it was a target. Subjects completed three 7-min runs in the scanner, each of which consisted of 112 trials.
