"When Pavlov was measuring salivation in a dog he provided meat powder and a metronome to the dog. Later the metronome was presented alone and the dog still salivates in anticipa­tion of the meat powder. The metronome would be called the ."

conditioned stimulus

Explanation:

Conditioned stimulus -

It refers to as the neutral stimulus , which triggers or initiates the conditioned response , is referred to as the conditioned stimulus .

Ivan Pavlov was the very first one to give meaning to the term conditioned stimulus , by experimenting on the dogs .

Hence , from the given scenario of the question ,

The correct answer is conditioned stimulus .

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