Pavlov found that once he conditioned a dog to salivate in response to a tone, a tone that was slightly higher or lower in pitch would also make the dog salivate. This phenomenon is called:A. spontaneous recovery.
B. stimulus discrimination.
C. backward conditioning.
D. stimulus generalization.

The answer is D. stimulus generalization.

Explanation:

Stimulus generalization occurs when the response to specific stimulus is the same to other similar stimuli. For example, if a child is conditioned to fear a white rat, he might also be afraid of other similar animals, such as a white rabbit.

Stimulus generalization may be positive when the behaviour is beneficial. However, it could make learning slower when subtle differences are implied.

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