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.
The 16 stimulus objects: the original toy object, and the geometrically simpler variant. The line close to each object is one inch in length. The filled arrow points to the defined top of the object and the dashed arrow to the front. The axis positive direction is in the inverse direction to the depicted arrow.
