Operant Conditioning: This is a type of learning where behavior is controlled by consequences. Key concepts in operant conditioning are positive reinforcement, negative reinforcement, positive punishment, and negative punishment.
Reinforcement: It's an outcome that strengthens the probability of a response or behavior. For example, giving your dog a treat for sitting down reinforces that behavior.
Extinction: In psychology terms, extinction refers to the gradual weakening of a conditioned response that results in the behavior decreasing or disappearing. For instance, if you stop giving your dog treats for sitting down, eventually he may stop doing this action altogether.