AP PSYCHOLOGY

Detailed explanation-1: -Reflex: An automatic, unlearned response to a stimulus.

Detailed explanation-2: -An unconditioned stimulus (UCS or US) can naturally elicit an automatic response without prior conditioning or learning. It is also called the primary reinforcer. The involuntary response is a reflex triggered by the unconditioned stimulus.

Detailed explanation-3: -The Unconditioned Stimulus in Pavlov’s Experiment Salivation occurred automatically and without the dogs’ conscious effort when they smelled the food. This response required no learning. The food was an unconditioned stimulus because it prompted a reflexive response.

Detailed explanation-4: -The unconditioned response is a reflex that serves as the basis for establishment of the conditioned response in classical conditioning. Also called unconditioned reflex.

Detailed explanation-5: -In classical conditioning, an initially neutral stimulus (conditioned stimulus, CS) becomes associated with a biologically salient event (unconditioned stimulus, US), which might be pain (aversive conditioning) or food (appetitive conditioning).