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What is the definition of a neutral stimulus?

A neutral stimulus (NS) is any stimulus that does not initially elicit a particular response. This means it has no inherent meaning or significance to the organism.

Examples of Neutral Stimuli:

* A bell sound

* A specific light

* A particular scent

Key Characteristics of a Neutral Stimulus:

* No inherent connection to the response: It doesn't naturally trigger the behavior you're interested in.

* Can be paired with other stimuli: It can be used in conditioning experiments to associate it with a specific response.

* The organism does not react to it: It does not elicit any particular behavior or physiological change.

How it's used in Classical Conditioning:

In classical conditioning, a neutral stimulus is paired with an unconditioned stimulus (UCS) that naturally elicits a response. Through repeated pairings, the neutral stimulus becomes a conditioned stimulus (CS) that can elicit the conditioned response (CR) on its own.

Example:

* UCS: Food (naturally elicits salivation)

* UCR: Salivation

* NS: Bell sound

* Pairing: The bell is repeatedly sounded just before the food is presented.

* Outcome: The bell becomes a CS and eventually elicits salivation (the CR) even without the food being presented.

In essence, a neutral stimulus is the starting point for establishing a learned association in classical conditioning. It's a blank slate that can be transformed into a meaningful signal through repeated pairings with another stimulus.

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