Learning: Principles, Basic processes of Classical
Conditioning (extinction, generalization, spontaneous recovery)
Learning is a complex process through which individuals acquire new knowledge, behaviors, or skills.
One prominent theory of
learning is classical conditioning, which was developed by Ivan Pavlov. Here
are the basic processes of classical conditioning:
1. Principles of Classical
Conditioning:
Classical
conditioning involves associating an initially neutral stimulus (NS) with an
unconditioned stimulus (UCS) to elicit a conditioned response (CR). The key
principles include:
- Unconditioned
Stimulus (UCS): A stimulus that naturally triggers a response without prior
learning. For example, food causing salivation.
- Unconditioned
Response (UCR): The natural, unlearned reaction to the unconditioned stimulus.
In the example, salivation in response to food.
- Conditioned
Stimulus (CS): Initially neutral, but through association with the
unconditioned stimulus, it comes to trigger a conditioned response. For
instance, a bell that becomes associated with food.
- Conditioned
Response (CR): The learned response to the conditioned stimulus, similar to the
unconditioned response. In our example, salivation in response to the bell.
2. Basic Processes of
Classical Conditioning:
- Extinction:
This occurs when the conditioned stimulus (CS) is presented repeatedly without
the unconditioned stimulus (UCS). As a result, the conditioned response weakens
and eventually diminishes. For instance, if the bell (CS) is rung without
presenting food (UCS), the dog's salivation (CR) decreases over time.
- Generalization:
Generalization involves responding to stimuli that are similar, but not
identical, to the conditioned stimulus. In our example, if the dog salivates
not only to the bell (CS) but also to similar sounds, it demonstrates
generalization.
- Spontaneous
Recovery: After a period of rest or time without exposure to the conditioned
stimulus, the conditioned response may reappear. This is known as spontaneous
recovery. It suggests that even though extinction occurred, the association is
not entirely erased.
In summary, classical
conditioning is a learning process where associations are formed between
stimuli, leading to learned responses. Extinction weakens the learned response,
generalization occurs when similar stimuli evoke the same response, and spontaneous
recovery involves the reappearance of the response after a rest period.
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