Learning and Memory Flashcards
Habituation
The phenomenon by which repeated exposure to the same stimulus can cause a decrease in response
Dishabituation
The recovery of a response to a stimulus after habituation has occurred. Often occurs when, late in the habituation of a stimulus, a second stimulus is presented. It is temporary and always refers to chages in response to the original stimulus, not the new one.
Associative learning
Creation of a pairing, or association, either between two stimuli or between a behavior and a response
Unconditioned stimulus
Any stimulus that brings about an innate or reflexive response
Unconditioned response
The innate or reflexive response to an unconditioned stimulus
Neutral stimuli
Stimuli that do not produce a reflexive response
Signaling stimuli
Neutral stimuli that have the potential to be used as a conditioning stimulus
Conditioned stimulus
A normally neutral stimulus that, through association, now cause a reflexive response
Conditioned response
A reflexive response caused by a conditioned stimulus
Acquisition
The process by which an unconditioned stimulus is used to turn a neutral stimulus into a conditioned stimulus
Extinction
The process by which a conditioned response is lost because an organism has become habituated to the conditioned stimulus
Spontaneous recovery
The process by which the representation of an extinct conditioned stimulus can cause the exhibition of a weak conditioned response
Generalization
A broadening effect by which a stimulus similar enough to the conditioned stimulus can also produce the conditioned response
Discrimination (behaviorism)
The opposite of generalization. The ability to distinguish between two similar stimuli
Behaviorism
The theory that all behaviors are conditioned
Escape learning
The role of behavior is to reduce the unpleasantness of something that already exists. A type of negative reinforcement
Avoidance learning
Mean to prevent the unpleasantness of something that is meant to happen (e.g. studying to avoid the unpleasant consequent of getting a bad MCAT score)
Primary reinforcers
Reinforcers that an organism responds to naturally
Conditioned/secondary reinforcer
A reinforcer that, though classical conditioning has become a reinforcer because it’s been associated with something that yields a positive response
Discriminative stimulus
One that indicates that reward is potentially available in an operant conditioning paradigm
Fixed-ratio (FR) schedule
Reinforces a behavior after a specific number of performances of that behavior
Variable-ratio (VR) schedules
Reinforce a behavior after a varying number of performances of the behavior, but such that the average number of performances to receive a reward is relatively constant. Works fastest and is most resistant to extinction.
Fixed-interval (FI) schedules
Reinforce the first instance of a behavior after a specified period has elapsed.
Variable-interval (VI) schedules
Reinforce a behavior the first time that behavior is performed after a varying interval of time
Shaping
The process of rewarding increasingly specific behaviors
Latent learning
Learning that occurs without a reward but is spontaneously demonstrated once a reward is introduced
Preparedness
Animals’ predisposition towards learning behaviors that coincide with their natural behaviors
Instinctive drift
A difficulty in overcoming instinctual behaviors when learninG
Observational learning
The process of learning a new behavior or gaining information by watching others
Mirror neurons
Neurons located in the frontal and parental lobes of the cerebral cortex and fire both when an individual performs an action and when that individual observes someone else perform that action