Note that this concept is different than that of the discriminative stimulus (Sd).

The listener, as an audience, acts as a special, powerful and important discriminative stimulus.

They do not require an appeal to effects specific to the discriminative stimuli.

Even if the response does not occur, it does not depend on the discriminative stimulus.

Once discriminative stimulus is present, it will lead other factors to response.

This stimulus gets into action at the same time as the eliciting or discriminative stimulus.

Its contributions in leading to a response is separate from eliciting and discriminative stimulus.

A test of the negative discriminative stimulus as a reinforcer of observing.

When using time delay procedures, a prompt is initially given immediately after the desired discriminative stimulus.

This is the opposite of a discriminative stimulus which is a signal that reinforcement will occur.