Learn Before
Unconditioned Stimulus (UCS)
An unconditioned stimulus (UCS) is a stimulus that triggers a reflexive, unlearned response in an organism. In Pavlov's experiments, the meat powder served as the UCS because it naturally caused the dogs to salivate without any prior training.
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Ch.6 Learning - Psychology @ OpenStax
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Psychology @ OpenStax
Introduction to Psychology @ OpenStax Course
OpenStax Psychology (2nd ed.) Textbook
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Fear Conditioning
Neutral Stimulus (NS)
Unconditioned Stimulus (UCS)
Before, During, and After Classical Conditioning
A dog owner uses an electric can opener to open their dog's food every day. The sound of the can opener running makes the dog excited and start to salivate. Eventually, the dog gets excited and salivates whenever it hears the sound of any electric appliance running in the kitchen, even if it is not the can opener. In this scenario, the sound of the electric can opener is the:
Learn After
Conditioned Stimulus (CS)
Unconditioned Response (UCR)
Every time you take a shower, someone in your apartment flushes a toilet, causing the water to become scalding hot. You naturally jump back from the hot water. After this happens several times, you begin to jump back as soon as you hear the toilet flush, even before the water temperature changes. In this scenario, which element is the stimulus that automatically triggers a reflexive response without any prior learning?