Learning, CBT, and Memory Flashcards
Founder of classical conditioning
Ivan Pavlov
Process of classical conditioning
A naturally occurring stimulus (US) produces a natural response (UR)
Pair a neutral stimulus with the US, and the neutral stimulus will then produce a response (CR)
Effects of temporal relationships in conditioning
The CS must precede and overlap with the US (ideally by 0.5 seconds) for the best effect - called delay conditioning
Second best is trace conditioning, when you present and terminate the CS before showing the US.
Even less effective is simultaneous conditioning, when you show the neutral stimulus and the US at the same time
Worst is backward conditioning - US, then CS - produces no conditioning
Impact of the number of conditioning trials in classical conditioning
The greater the number of conditioning trials, the stronger the CR
However, the strength of the CR will likely always be a bit weaker than the UR
Impacts of pre-exposure on classical conditioning
Repeated exposure to the US or CS before they are paired slows down the acquisition of the CR
Classical extinction
The gradual disappearance of the CR with the CS
To avoid: add in occasional refresher trials with the CS and US pairing
Following extinction, fewer trials are needed to get the CS-CR response back
Spontaneous Recovery
In the days following an extinction, the CS can still elicit a weak CR
Demonstrates that learning is never lost (per Pavlov), it is just inhibited
(The CR is suppressed, rather than eliminated)
Stimulus generalization
When stimuli similar to the CS also produce a CR
In some instances, this can also occur across senses
Stimulus discrimination
The ability to discriminate between the CS and stimuli similar to the CS
Stimulus discrimination is established through discrimination training, where you selectively reinforce the CS, and don’t reinforce the similar stimuli
Experimental neurosis
Occurs during discrimination training when the animal/subject can no longer distinguish between the CS and the similar objects (when the two stimuli are too similar)
Dogs in Pavlov’s studies would exhibit agitation, aggressiveness, restlessness
Higher-order conditioning
Pair a CS with a neutral stimulus, which then becomes the higher-order conditioned stimulus
Explains how CRs are acquired in the absence of a US
Blocking
When you present a CS, US, and neutral stimulus at the same time
The presence of the CS will block the pairing of the US and neutral stimulus
Overshadowing
If you pair two neutral stimuli with a US to elicit a CR…
If you break up the two neutral stimuli, only one will come to elicit the CR and the other will not
Little Albert
John Watson
Classical conditioning with a baby
White rats, stimulus generalization
Interventions based on counterconditioning are based on the underlying technique of reciprocal inhibition…
What is reciprocal inhibition?
Pairing a stimulus that invokes anxiety (CS) with a stimulus that invokes relation (CS)
Pair the anxiety-provoking stimuli with something naturally relaxing (US)
Two types of interventions based on counterconditioning
Systematic desensitization
Behavioral sex therapy
Four stages to systematic desensitization
Relaxation training (PMR, imagery)
Construction of the hierarchy (10-15 events, SUDS 1-100)
Desensitization in imagination (start from bottom of hierarchy; relax, then imagine, then bring back to relaxation)
In vivo desensitization (do after 75-85% imagination, do with things already desensitized via imagination)
Evaluation research on systematic desensitization
Extinction is responsible for systematic desensitization (as opposed to the combination of anxiety and counter-relaxation states)
Behavioral Sex Therapy is best indicated for…
Disorders related to (or exacerbated by) performance anxiety
Premature ejaculation (squeeze technique is prominent)
Vaginismus (relaxation with dilators is prominent)
How behavioral sex therapy works
Through use of senate focus
Pairing a situation that avoids anxiety with pleasurable sensations and relaxation
Ex. Abstaining from sex and focusing only on non-genital touching or massage for pleasure, then progressing to non-demand genital touching
Two interventions based on aversive counterconditioning
In vivo aversion therapy
Covert sensitization
In vivo aversion therapy
Form of aversive counterconditioning
Pair a maladaptive behavior (CS) with a US that naturally elicits a noxious response (shock, odor, emetic drug)
Types of conditions that may benefit from aversive counterconditioning
Substance use disorders
Paraphilias
Self-injurious behavior
Research on aversive counterconditioning
Most effective with cigarette smoking, moderately effective sometimes in the short term for everything else
High relapse rates, limited generalizability
Most effective when the adverse method is similar to the maladaptive method (eg. alcoholism with taking a drug), AND when supplemented with other treatment modalities
Covert sensitization process
Type of aversive counterconditioning
Imagining the noxious event (in as much detail as possible) while willfully engaging in the maladaptive behavior (Ex. Smoking and imagining feeling nauseous, vomiting, and being embarrassed)
May also incorporate a “relief scene” where you imagine not doing the maladaptive behavior and experiencing relaxation
Three therapies based on classical extinction techniques
In vivo exposure and response prevention
Implosive therapy
EMDR
Two variations to in vivo exposure with response prevention
Flooding - highest ranking anxiety stimulus for a prolonged period of time
Graded - start with the lowest stimulus and work up to the highest
In vivo expose and response prevention
Exposed to real-life anxiety-inducing events for prolonged periods, and prohibiting the person from engaging in avoidance behaviors or rituals
Evaluation of in vivo and response prevention therapy
Exposure AND response prevention are both needed
Prolonged exposure > several brief exposures
High anxiety situations may not always be necessary
Group and self-directed treatments can be as equally efficacious
Implosive therapy
Imagine the situations that bring about high anxiety and prevent the person from engaging in avoidance tactics
Embellished with psychodynamic themes
EMDR
Eye movement desensitization and reprocessing
Originally for PTSD
Lateral eye movements paired with CBT and psychodynamic techniques
Criticism to EMDR
The lateral eye movements are dumb and needless
Law of Effect
Thorndike
Any response followed by a satisfying “state of affairs” will be repeated and any response followed by an annoying state of affairs is less likely to recur.
Behaviors are instrumental to helping animals achieve a goal - instrumental learning
Instrumental learning
Thorndike
Behaviors can be instrumental to helping an organism achieve goals
Laws of effect - if it’s pleasant and helps you achieve a goal, you’re more likely to do the thing
Psychologist most associated with operant conditioning
Skinner
Operant conditioning
Skinner
The most complex behaviors are voluntarily emitted (or not) as a result of how they OPERATE on the environment (consequences)
Positive v Negative
Reinforcement v Punishment
Positive - application of a stimulus
Negative - withholding or removing a stimulus
Reinforcement - increases the behavior it follows
Punishment - decreases the behavior it follows
Positive reinforcement
The application of a stimulus (reinforcer) increases the performance of a behavior
Negative reinforcement
Withdrawal or termination of a stimulus (reinforcer) leads to an increase in a given behavior
Reinforcement
Increases the behavior it follows
Punishment
Decreases the behavior that it follows
Positive punishment
Behavior decreases as a result of applying a stimulus
Negative punishment
Behavior decreases as a result of removing or withholding a stimulus
Operant extinction
Occurs when reinforcement is consistently withheld from a previously reinforced behavior to decrease or eliminate that behavior
Extinction (response) burst
Removal of a reinforcer does not automatically lead to extinction
The extinction burst is the period just before extinction where the behavior occurs multiple times, sometimes more rapidly, despite there being no reinforcement
Primary reinforcer
Aka unconditioned reinforcers
Inherently desirable and do not depend on experience to acquire their reinforcing value (food, water)
Secondary reinforcer
Aka conditioned reinforcer
Acquire their value through pairing with a primary reinforcer
Continuous schedule of reinforcement
Reward a behavior after each and every time it is done
Behavior is learning quickest this way, however extinction also occurs most rapidly if you withdraw the reinforcer
Four schedules of intermittent reinforcement
Fixed ratio
Fixed interval
Variable ratio
Variable interval
Fixed interval (FI) reinforcement schedule
Reinforcement is delivered after a fixed amount of time, regardless of the number of times the desired behavior occurs (must happen at least once per time interval)
Produce low rates of responding because reward isn’t related to the number of behaviors… Produces a scallop curve as the behavior increases as the interval runs out, with decrease of behavior right after reinforcement
Variable interval (VI) reinforcement schedule
Varied amount of time between when behaviors are reinforced (at least once per interval of time)
Schedule produces a low but steady rate of response
Fixed ratio (FR) reinforcement schedule
A reinforcer is delivered after a fixed number of behaviors are elicited
Because the relationship between behavior and reward is explicit, FR schedules produce a high and steady rate of response (usually with a brief pause following the reward)
Variable ratio (VR) reinforcement schedule
Reinforcers are provided after a varying number of times the behavior is elicited
Because reinforcement is unpredictable, VR schedules produce the highest rates and responding and are most resistant to extinction
Matching Law
Predicts the correspondence between responding to two or more alternatives and the frequency of reinforcement
Ex. If two levers are present and one is on a VR-30 and one a VR-60, the matching law would predict that the VR-30 lever would receive approximately 2/3 of the behavior, and VR-60 would get one third
Superstitious behavior
Caused by accidental, noncontingent reinforcement
Eg. Reinforcing every fifteen seconds regardless of whether or not the desired behavior was being done or not
Leads to odd, ritualistic behaviors
Stimulus control
When the occurrence of a behavior is affected by the presence of discriminative stimuli (ex. Going a behavior when around someone more likely to reinforce or punish you)
S^D - positive discriminative stimuli (signals response would be reinforced)
S^- - negative discriminative stimuli (signals response would not be reinforced)
Stimulus generalization
Operant conditioning
Operant conditioning
- occurs when similar stimuli elicit the same response
Response generalization
Operant conditioning
Operant conditioning
When reinforcement increases the frequency of similar response
Ex. Baby reinforced for “mama” may also say “dada,” “baba”, etc.
Escape conditioning
A behavior increases because its performance allows her organism to escape an undesirable (aversive) stimulus
Avoidance conditioning
The result of two-factor learning
Onset of the negative reinforcer is proceeded by a cue that signals the negative reinforcer is about to be applied…the organism learns to not engage in the behavior in the presence of the cue
Factors that influence positive reinforcement interventions
Contingency (reinf only available when behavior occurs)
Immediacy (reinf should be delivered immediately after the behav)
Schedule of Reinf (continuous for development, intermittent for maintenance…thinning)
Magnitude (amount of reinf to the behav, watch for satiation)
Verbal clarification (clarify relationship between behav and reinf verbally)
Prompts (physical prompts can facilitate learning a new behav, then gradually decrease…fading)
Satiation
When a reinforcer loses its value
Thinning
The change from continuous to intermittent reinforcement
Prompts
A verbal or physical signal or reminder to facilitate the acquisition of a new behavior