Module 20: Operant Conditioning Flashcards
Operant Conditioning
A type of learning in which a behavior becomes more likely to recur if followed by a reinforcer or less likely to recur if followed by a punisher.
Law of Effect
Thorndike’s principle that behaviors followed by favorable consequences become more likely, and that behaviors followed by unfavorable consequences become less likely.
Operant Chamber
In operant conditioning research, a chamber (Skinner box) containing a bar or key that an animal can manipulate to obtain a food or water reinforcer, attached devices record the animal’s rate of bar pressing or key pecking.
Reinforcement
In operant conditioning, any event that strengthens the behavior it follows.
Shaping
An operant conditioning procedure in which reinforcers guide behavior toward closer and closer approximations of the desired behavior.
Positive Reinforcement
Increasing behaviors by presenting positive reinforcers (any stimulus that, when presented after the response, strengthens it).
Negative Reinforcement
Increasing behaviors by stopping or reducing aversive stimuli. (Negative reinforcer is any stimulus that, when removed after a response, strengthens it). This is NOT punishment.
Primary Reinforcer
An innately reinforcing stimulus, such as one that satisfies a biological need.
Conditioned Reinforcer
A stimulus that gains its reinforcing power through its association with a primary reinforcer; also known as a secondary reinforcer.
Positive Punishment
Administration of an aversive stimulus. Ex. Spray water on a barking dog.
Negative Punishment
Withdrawing a rewarding stimulus. Ex: take away misbehaving teen’s driving privileges.
Reinforcement Schedule
A pattern that defines how often a desired response will be reinforced.
Continuous Reinforcement Schedule
Reinforcing the desired response every time it occurs.
Partial (intermittent) reinforcement
Reinforcing a response only part of the time; results in slower acquisition of a response, but much greater resistance to extinction than does continuous reinforcement.
Fixed-ratio schedule
In operant conditioning, a reinforcement schedule that reinforces a response only after a specified number of responses.