The Conditioned Stimulus
This video presents the same text shown beside it, spoken and on screen. It adds nothing the text does not say.
State
The conditioned stimulus is the formerly neutral stimulus that triggers a response after being paired with the unconditioned stimulus.
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The tone, after repeated pairing with food, is now the conditioned stimulus.
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It is the same physical stimulus throughout. The label records what has happened to it, not what it is.