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Question

Ivan Pavlov used to ring a bell every time he fed a dog. On smelling the food, the dog produced saliva. Later on, the dog produced saliva when the bell was rung even without noticing the food. In this case, what is the stimulus that creates a conditioned response?


A
Food
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B
Bell 
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C
Salivation
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D
Smell
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Solution

The correct option is B Bell 
Ivan Pavlov is a Russian scientist who investigated on conditioning. He studied this behaviour on dogs. He conditioned dogs to produce saliva on hearing a bell sound. 
In this experiment, bell is the stimulus to the conditioned response, salivation. Food is the unconditioned stimulus. Which means a dog produces saliva on smelling food without anybody teaching about it.
 

Biology

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