Learning And Memory Flashcards
Classic conditioning
Pavlov
- was studying digestive processes in dogs
- notice that dogs begin to salivate two meat powder and associated stimuli
- decided to investigate the phenomenon
Unconditioned stimulus( us)
+ naturally elicits response
Example: meat powder
Unconditioned response
+ naturally elicited response
Example: salivation
Conditioned stimulus(CS)
- does it naturally elicit response but after repeated pairing conditioned response is similar but weaker in magnitude to the conditioned response
Example: ringing of bell
Conditioned response( CR)
- similar to the unconditioned response but weaker in magnitude
Example: salivation
Factors that influence the effectiveness of classical conditioning
+ number of pairings
- temporal relationship between the cs and the US
Delay conditioning
- the condition stimulus up in (cs) is presented so it proceeds and overlaps with presentation of the unconditioned stimulus (us)
- most effective, delay of 1/2 second between presentation of cs and us is optimal
Trace conditioning
- condition stimulus (cs) is presented and terminated before presentation of the unconditioned stimulus (us)
Simultaneous conditioning
- condition stimulus (CS) and the unconditioned stimulus (us) are presented and terminated at the same time
- less effective
Backwards conditioning
- you present the unconditioned stimulus (us) before the condition. Stimulus (cs)
- unlikely to produce a conditioned response
Effectiveness of classic conditioning
- the presentation of the unconditioned stimulus is contingent upon the presentation of the condition stimulus
Classical Extinction
The loss of a conditioned response because it has been repeatedly presented without the unconditioned stimulus (us)
Spontaneous recovery
- conditioned response has been extinguished but later occurs when the cs is presented even though it has not been presented again with the US
+ Extinguished response is suppressed not eliminated
Stimulus generalization
- stimuli similar to the cs illicit condition response even though never presented with the US
- when using 800 HZ tone presented with meat powder to elicit salvation, 600 HZ and a thousand HZ began to produce salvation even though never paired
Stimulus discrimination
- ability to discriminate between a conditioned stimulus and similar stimuli and respond only to the cs with CR
-
Discrimination training
- can teach to be able to discriminate between the cs and similar stimuli
- present the 800 HZ toned with meat powder and the 600 HZ tone without and condition the dogs to salivate only to the 800 HZ tone
Experimental neurosis
Unusual behaviors exhibited by Pavlov’s dogs when they were required to make difficult decisions regarding discrimination during discrimination training
Extreme Agitation and aggressive behavior in the dogs
- conflict between the excitatory and inhibitory processes in the cerebral cortex
Higher order conditioning
- treat CS as an US and repeatedly present it with a new neutral stimulus so that the neutral stimulus becomes a CS and elicits the conditioned response when presented alone
- Pavlov: paired presentation of ringing Bell with meat powder so that presentation of the ringing Bell alone produce salivation
- then paired presentation of a black square printed on paper with the ringing Bell so that eventually presentation of the black square alone elicited salivation
- when higher, order conditioning involves a second condition stimuli it’s second order conditioning and when the third, third order and so on
+ Original believed had no limits but in dogs it was found that can’t produce past second order
Little Albert
Watson
- proposed that many phobic reactions are classic conditioned
- Alyssa did a startle response to a white rabbit and little Albert by pairing alpresentation of a white rabbit with a loud noise that naturally elicited a startle response
- White rabbit was a neutral stimulus, but after repeated pairing became a condition stimulus and Edison that started response
+ Little Albert elicited a great deal of stimulus generalization and reacted to other white furry objects with the startle response
Interventions that use classical conditioning to alter behavior
- Extinction
- counter conditioning
Interventions that use classical conditioning to alter behavior
- Extinction
- counter conditioning
Interventions based on Extinction
- assume that an object or situation that does not ordinarily produce anxiety or fear has become a conditioned stimulus that now produces a conditioned response of fear or anxiety because at some time it was paired with the unconditional stimulus that naturally elicited fear or anxiety
- exposure with response prevention
- implosive therapy
Exposure with response prevention
Assumes repeated exposure to the cs without the US will result in Extinction of the CR
- A conditioned anxiety response is never extinguished because the person avoids The conditioned stimulus to avoid anxiety
- you expose the person to anxiety. Arousing object or situation while prohibiting them from engaging in avoidance behaviors as a result, the conditioned response of anxiety is extinguished
- in vivo( real life setting ), virtual reality, or in imagination (imaginal)
- flooding or graded exposure?
Flooding
- client is subjected to exposure to a stimuli that elicits the most intents anxiety during all exposure sessions
- effective
Graded exposure
- exposed client to stimuli that evoke low levels of anxiety and in gradually increase to stimuli that increase in the intensity of anxiety
- acceptable to clients
Graded exposure
- exposed client to stimuli that evoke low levels of anxiety and in gradually increase to stimuli that increase in the intensity of anxiety
- acceptable to clients
Flooding and graded exposure
- each session should not end until the client has experienced substantial decrease in anxiety in order to be most effective
Implosive therapy
+ type of exposure that’s always conducted in imagination and includes elements of psychodynamic…
- client imagines the feared object or situation in a way that elicits a high level of anxiety, the therapist then embellishes The imagine scene with a psychodynamic theme that is believed to be a contributor to the client’s anxiety (sample unacceptable, sexual or aggressive impulse )
Interventions based on counter conditioning
- eliminate anxiety or fear response by pairing the stimulus that elicits fear/anxiety with a stimulus that elicits and incompatible response or with the incompatible response itself
- use classical conditioning to eliminate The anxiety response by parrying the anxiety arousing stimulus, either with the stimulus that nationally elicits a incompatible response or the incompatible response itself, anxiety arousing stimulus will then elicit the incompatible response instead of anxiety
- sysytematic desensitization:
Systematic desensitization
-Wolpe
- treatment of phobic anxiety
- The effectiveness of systematic desensitization is due to counter conditioning (reciprocal inhibition), But dismantling strategy found that it may be due to exposure to the individual feared stimuli
- pair stimuli that produce anxiety with relaxation
- conducted in imagination
- three steps:.
“ Training and relaxation - Constructing an anxiety hierarchy
.* Desensitization
Training in relaxation
Wolpe- step one
- client learns progressive muscle relaxation or other relaxation procedure
Constructing anxiety hierarchy
Wolpe- systematic desensitization step 2
- client and therapist create an anxiety hierarchy consisting of 10 to 20 stimuli that range in intensity of anxiety from low to high
Desensitization
Wolpe- systematic desensitization step 3
- client begins with the least anxiety provoking stimuli and practices relaxation techniques until they can maintain relaxation, then move on to the next stimuli on the hierarchy. This continues on until they can imagine the most anxiety-inducing stimuli and maintain a relaxed state
- when feasible, the client may be asked to start confronting anxiety-inducing stimuli in real life when they have been desensitized to about 75 to 80% of the anxiety arousing stimuli and the anxiety hierarchy starting with stimuli that correspond to stimuli on the hierarchy that they have already been desensitized to in imagination
Aversive counterconditioning(aversion therapy)
- stimuli that elicits an undesirable behavior is paired with an unconditional stimulus that naturally elicits pain or other unpleasant response so that the self-reinforcing response is replaced by the unpleasant response
Ex. Presentation of the fetish object is paired with mild electric shock, electric shock is the unconditioned stimulus and pain is the unconditioned response. As a result of repeatedly presenting the fetish object with electric shock, the fetish object becomes conditioned stimulus and produces a conditioned response of pain rather than arousal
Covert desensitization
- aversive counterconditioning conducted in imagination
Blocking
- classical conditioning of the first neutral stimulus blocks classical conditioning of the second, neutral stimulus and the second neutral stimulus never becomes a conditioned stimulus
- the second neutral stimulus does not provide any new information about the occurrence of the unconditioned stimulus
EDMR
- research using the dismantling strategy found that admr is effective due to exposure to a feared stimuli not eye movement
Operant conditioning
Skinner
- whether or not a voluntary behavior is emitted depends on how it operates on the environment.
Produces reinforcement which increases the behavior or punishment which decreases or eliminates the behavior
Positive reinforcement
Operant conditioning- Skinner
- behavior increases because a stimulus is applied following the behavior
Example: kid completes chores because they get a dollar after they finish
Negative reinforcement
Operant conditioning- Skinner
- behavior increases because a stimulus is removed following the behavior
Example: a kid completes chores because when they do, their parents stop nagging
Positive punishment
Operant conditioning – skinner
- behavior decreases because of stimula is applied following the behavior
Example: a kid stopped acting out because when they do they get extra homework
Negative punishment
- Skinner: operant conditioning
- behavior decreases due to a stimulus being removed following a behavior
- a kid stops acting out because they lose their recess
Continuous schedule of reinforcement
- reinforcement is provided every time behavior occurs
- fastest acquisition of behavior but can lead to satiation or rapid Extinction
Intermittent schedule of reinforcement
- reinforcement is provided after a certain length of time or number of responses
Satiation
- operant conditioning
The reinforcer loses its reinforcing value
Extinction
- operant conditioning
- previously reinforced behavior no longer occurs because reinforcement has been terminated
How to avoid satiation and Extinction in operant conditioning
- start off with continuous schedule of reinforcement and then switch to intermittent schedule once behavior occurs at the desired level
Fixed interval schedule(Fi)
- reinforcement is provided at a fixed interval of time as long as the response occurs at least once during the interval
- low rate of responding, with responses being made shortly before the end of the each interval
Variable interval (VI)
- reinforcement is applied after an interval of time that varies in length of time as long as the response occurs at least once during the interval
- produce steady but relatively low rate of responding
Fixed ratio schedule(FR)
- reinforcement is provided after a fixed number of responses
- produces a steady in relatively High rate of responding
Variable ratio schedule( VR)
- reinforcement is provided after a variable number of responses
- has the highest rate of responding and the greatest resistance to Extinction
Operant Extinction
- previously reinforced behavior stops because the behavior is no longer reinforced