Understanding Classical and Operant Conditioning
Classical conditioning, discovered by Pavlov, occurs when a neutral stimulus (like a bell) is repeatedly paired with an unconditioned stimulus (like food) that naturally produces a response (salivation). Eventually, the neutral stimulus alone triggers the same response, becoming a conditioned stimulus producing a conditioned response.
If the conditioned stimulus appears without the unconditioned stimulus multiple times, extinction occurs and the response disappears. However, spontaneous recovery can happen if the stimuli are paired again.
Operant conditioning, developed by Skinner, focuses on how voluntary behaviours are influenced by consequences. Behaviours followed by rewards (positive reinforcement) or removal of unpleasant things (negative reinforcement) increase. For example, giving a child a treat for politeness is positive reinforcement, while applying sunscreen to avoid sunburn is negative reinforcement.
Skinner demonstrated this using his famous "Skinner box" where animals learned to press levers for food rewards. The frequency of lever-pressing showed how strongly the behaviour had been conditioned.
Remember: In operant conditioning, reinforcement (positive or negative) increases behaviours, while punishment decreases them!