A pigeon learns to peck at a disc lighted green to receive reinforcement, but not at a disc lighted red. This means that, for the pigeon, the colour of the disc is a

Question

Quizplus · Accepted Answer

The fact that the pigeon learns to peck at a disc lighted green and not at a disc lighted red means that the green disc is a discriminative stimulus, meaning it signals the availability of reinforcement, while the red disc is not. The other options are not relevant to the scenario provided.

A Pigeon Learns to Peck at a Disc Lighted Green