In the video below, the Larro®
Feeds salesman demonstrates a variation of this game in which a chicken
identifies the correct pot under which a ball has been placed. Once
again, the discriminative stimulus is a small mark placed upon the top of
the "hot" pot.
In a variation of this task, the
salesman/trainer would place different kinds of chicken feed under each of
three cups and mix them up. The chicken was trained to peck the cup under
which the Larro® brand feed was hidden (well, the pot with the mark).
This early exhibit is interesting
because it indicates that lay persons could be trained to be behavior
modifiers. In fact, the Brelands probably wrote the first behavior
modification training manual that capitalized upon operant conditioning,
positive reinforcement, and the principles that the Brelands learned from
B. F. Skinner.