Chapter 6: Learning (Terms) Flashcards
Classical conditioning
A type of learning in which a neutral stimulus comes to bring about a response after it is paired with a stimulus that naturally brings about that response.
Neutral stimulus
A stimulus that, before conditioning, does not naturally bring about the response of interest.
Unconditioned stimulus (UCS)
A stimulus that naturally brings about a particular response without having been learned.
Unconditioned response (UCR)
A response that is natural and needs no training.
Conditioned stimulus (CS)
A once neutral stimulus that has been paired with an unconditioned stimulus to bring about a response formerly caused only by the unconditioned stimulus.
Conditioned response (CR)
A response that after conditioning follows a previously neutral stimulus.
Extinction
A basic phenomenon of learning that occurs when previously conditioned response decreases in frequency and eventually disappears.
Spontaneous recovery
The reemergence of an extinguished conditioned response after a period of rest and with no further conditioning.
Stimulus generalization
A process in which, after a stimulus has been conditioned to produce a particular response, stimuli that are similar to the original stimulus produce the same response.
Stimulus discrimination
The process that occurs if two stimuli are sufficiently distinct from one another that one evokes a conditioned response but the other does not; the ability to differentiate between stimuli.
Operant conditioning
Learning in which a voluntary response is strengthened or weakened, depending on its favorable or unfavorable consequences.
Reinforcement
The process by which a stimulus increases the probability that a preceding behavior will be repeated.
Reinforcer
Any stimulus that increases the probability that a preceding behavior will occur again.
Positive reinforcer
A stimulus added to the environment that brings about an increase in a preceding response.
Negative reinforcer
An unpleasant stimulus whose removal leads to an increase in the probability that a preceding response will be repeated in the future.
Punishment
A stimulus that decreases the probability that a previous behavior will occur again.
Schedules of reinforcement
Different patterns of frequency and timing of reinforcement following desired behavior.
Continuous reinforcement schedule
A schedule in which behavior is reinforced every time the behavior occurs.
Partial/intermittent reinforcement schedule
A schedule in which behavior is reinforced some but not all of the time.
Fixed ratio schedule
A schedule in which reinforcement is only given after a specific number of responses are made.
Variable ratio schedule
A schedule by which reinforcement occurs after a varying number of responses rather than after a fixed number.
Fixed interval schedule
A schedule in which reinforcement is provided for a response only after a fixed time period has elapsed.
Variable interval schedule
A schedule by which the time between reinforcements varies around some average rather than being fixed.
Shaping
The process of teaching a complex behavior by rewarding closer and closer approximations of the desired behavior.
