Learning Flashcards
What did E.L. Thorndike suggest?
The Law of Effect
What is the law of effect?
Precursor of operant conditioning. A cause-and-effect chain of behavior revolving around reinforcement.
What did Kurt Lewin develop?
The theory of association
What is the theory of association?
A forerunner to behaviorism, grouping things together based on they occur together in time and space. Associating certain behaviors with rewards and cues with situations. Precursor to Pavlov.
Who is Pavlov and what is classical conditioning?
Pavlov found that dogs salivate at the sound of a bell when the bell was paired with food.
Who is John B. Watson?
He founded the school of behaviorism.
What is the school of behaviorism?
Everything could be explained by stimulus-response chains and conditioning was the key factor in developing these chains.
Who is B.F. Skinner?
Conducted the first scientific experiments and suggested operant conditioning.
What did Skinner do?
Skinner proved that animals are influenced by reinforcement.
What is a Neutral Stimulus (NS)?
It does not produce a response on its own. For example, the bell before a response was conditioned.
What is an Unconditioned Stimulus (UCS)?
The not-so-neutral stimulus. For example, the UCS is the food; it elicits the response of salivating.
What is a Conditioned Stimulus (CS)?
The neutral stimulus once it has been paired with the UCS. The bell (CS) is paired with the food (UCS) so that the CS alone with produce a response.
What is an unconditioned response (UCR)?
The naturally occurring response to the UCS. The UCR and the CR are the same (salivating to food or a bell)
What is simultaneous conditioning?
The UCS and the CS are presented at the same time.
What is higher-order or second-order conditioning?
A previous CS now acts as a UCS. Chaining CSs.
What is forward conditioning?
Paring of the CS and the UCS in which the CS is presented before the UCS.
What are the two types of forward conditioning?
Delayed and trace conditioning.
What is delayed conditioning?
The presentation of the CS begins before that of the UCS and lasts until the UCS is presented.
What is trace conditioning?
The CS is presented and terminated before the UCS is presented.
What is backward conditioning?
The CS is presented after the UCS is presented. The food first and then the bell. It is ineffective and produces inhibitory conditioning. The dogs will have a hard time pairing the food with the bell later.
What is operant conditioning also called?
Instrumental conditioning.
What is shaping?
Behavior was modified. In the Skinner box, the experimenter rewarded the rats with food for being near the lever and rewarded them again for touching the lever.
What is another name for shaping?
Differential reinforcement of successive approximations.
What is primary reinforcement?
A natural reinforcement; food or water.
What is a secondard reinforcement?
A learned reinforcer. Often learned through society. Money.
What is positive reinforcement?
Reward of positive event acting as a stimulus that increases the likelihood of a particular response. Example: rewarding a dog with a treat.
What is negative reinforcement?
It is reinforcement through the removal of a negative event. Example: Monkey is in a cage with a horn blaring. If a monkey rides a tricycle the noise stops. The monkey will ride the tricycle more often. The noise is a negative event.
What is the difference between negative reinforcment and punishment?
Negative reinforcement encourages the subject to behave in a certain way and punishment encourages them to stop behaving. Negative reinforcement removes a negative event and punishment introduces a negative event.
What is a continuous reinforcement schedule?
Every correct response is met with some form of reinforcement. It is the quickest but most fragile learning; when the rewards stop coming, the animal stops performing.
What are the four types of parital reinformcement schedules?
Fixed-ratio, variable-ratio, fixed-interval, and variable-interval.
What is a fixed-ratio schedule?
A reinforcement is delivered after a consistent number of responses. Drug addiction. Vulnerable to extinction.
What is a variable-ratio schedule?
Reinforcements are delivered after a correct number of responses. The ratio cannot be predicted. Slot machines. Takes the most time to occur, but least likely to become extinguished.
What is a fixed-interval schedule?
Rewards come after the passage of a certain time period; every five minutes for example. It does little to motivate since it can be predicted.
What is a variable-interval schedule?
Rewards are delivered after differing time periods. It is second most effective. Waiting for a bus as an example.
What is a token economy?
An artificial mini-economy found in prisons, rehab centers, or mental hospitals. Individuals are motivated by secondary reinforcers, such as tokens and can be exchanged for primary reinforcers such candy, books, or cigarettes.