Module 27 - 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 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
Discriminative stimulus
In operant conditioning, a stimulus that elicits a response after association with reinforcement (in contrast to related stimuli not associated with reinforcement)
Positive reinforcement
Increasing behaviors by presenting positive reinforcements. A positive reinforcement is any stimulus that, when presented after a response, strengthens the response
Negative reinforcement
Increasing behaviors by stopping or reducing aversive stimuli. A negative reinforcement is any stimulus that, when removed after a response, strengthens the response. (Note: Negative reinforcement is not punishment)
Primary reinforcement
An innately reinforcing stimulus, such as one that satisfies a biological need
Conditioned reinforcement (secondary reinforcement)
A stimulus that gains its reinforcing power through its association with a primary reinforcement
Reinforcement schedule
A pattern that defines how often a desired response will be reinforced
Continuous reinforcement
Reinforcing the desired response every time it occurs
Partial (intermittent) reinforcement schedule
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
Variable-ratio schedule
In operant conditioning, a reinforcement schedule that reinforces a response after an unpredictable number of responses