With second-order conditioning, you do not need an unconditioned stimulus to be physically present in order to learn something about its occurrence.

Question

Quizplus · Accepted Answer

Second-order conditioning involves pairing a conditioned stimulus (CS) with another CS rather than an unconditioned stimulus (UCS). This means that the UCS does not need to be physically present for learning to occur.

With Second-Order Conditioning, You Do Not Need an Unconditioned Stimulus