Module 28 Flashcards
Operant conditioning
Associative learning based on positive or negative consequences of responding
Thorndike’s law of effect
Responses that lead to desirable effects are repeated; those that produce undesirable results are not
How Operant Conditioning Works
- Probability of a response will be influenced by the consequences of those responses
- Conditioning through reinforcement or punishment
Skinner box: An apparatus designed to study operant conditioning in animals
- The walls of the box were bare except for a metal bar and a try of food where pellets could be dispensed.
- The emitting of desired behavior by the rat was pressing on the metal bar. There were two things that could cause this. One, the rat was bored, or 2 the rat was hungry.
- These things kept the animal motivated and wanting to seek things like food.
- Showed that the rats could already press the bar but did it because of the positive consequence of food.
Reinforcer
- Event that follows a response and increases probability or reoccurrence
- Positive reinforcement occurs when a reward or positive event follows a response
- Negative reinforcement occurs when making a response is followed by removing something unpleasant from environment
Punisher
- Event or consequence that makes response less likely to reoccur
- Positive punishment occurs when behavior is followed by an aversive punisher
- Negative punishment occurs when a reinforcer is removed, such as a privilege
Generalization
Will similar behaviors bring about the same consequences?
1.The tendency to respond to stimuli similar to those that preceded reinforcement
Discrimination
Only very specific behavior will generate a consequence
- The tendency to make an operant response when stimuli previously associated with reward are present and to withhold the response when stimuli associated with nonreward are present
Shaping
- Use of discrimination to learn more complicated behaviors
- Gradually molding responses to a final desired pattern
Intensity
Those that are more intense will be more likely to result in behaviors being repeated in the future.
Timing
Reinforcement and punishment are most effective when they rapidly follow a response.
Consistency Varies
Varies when it comes to reinforcement
Continuous reinforcement
Follows every correct response
Continuous reinforcement
Does not follow every response
Responses acquired by partial reinforcement are highly resistant to extinction.
Fixed ratio
- The number of correct responses that a subject must give before reinforcement is permitted.
- FR #, the number represents the number of responses it takes to get the reinforcer. EX: FR-3, every third response is reinforced.
- The higher the FR the faster something will occur.
EX: A rat that is on an FR-10 schedule will run off responses faster to get food.