Concept:Stimulus discrimination is the learned ability to respond differently to two distinct stimuli, usually through reinforcement of one response and non-reinforcement of the other.
Explanation:- In classical conditioning, a stimulus is any change in the environment that triggers a response.
- Stimulus discrimination occurs when an organism learns to make a response to one specific stimulus (e.g., a bell) but not to another similar stimulus (e.g., a different tone).
- This is achieved by pairing one stimulus (CS+) with the unconditioned stimulus (US) and presenting another stimulus (CS−) without the US.
- The reinforced response strengthens only for the CS+; the non-reinforced stimulus does not elicit the response.
- In contrast, stimulus generalization is when similar stimuli also produce the same conditioned response.
- Higher order conditioning involves pairing a new neutral stimulus with an already conditioned stimulus.
- Extinction is the gradual disappearance of a conditioned response when the US is no longer presented.
- Therefore, identifying differences between two stimuli directly describes the process of stimulus discrimination.
Answer:B. discrimination