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 apparatus: two wooden blocks (targets), were placed adjacent to the food locations (white squares). When the table-top was slid forward animals could touch one of the targets with either nose or paw, which resulted in the researcher delivering the food item from the corresponding white square.
