Semi-Final1 Flashcards
Change in behavior resulting from experience
Learning
Some behavior change requires biological development as well as experience
Maturation vs Learning
Behavior change
Walking
Talking
Adult sexual behavior
Relatively simple forms of learning
Habituation
Classical conditioning
Operant conditioning
More complex kinds of learning
Learning calculus
Learning the history of the Civil war
Classical conditioning
Pavlov’s Dogs
He originally studied the physiology of salivation which he won the Nobel Prize
Pavlov
Classical conditioning is also known as
Pavlovian conditioning
Basic paradigm of classical conditioning
Formerly neutral stimulus (CS) paired with another stimulus (US) that automatically produces a response (CR)
An adaptive change in behavior that results from experience
Learning
Formerly neutral stimulus
Conditioned stimulus ex: a bell
Unconditioned stimulus
Food
Conditioned response
Salivation
After repeated pairing, the neutral stimulus () will elicit a response similar to the unconditioned response ()
The bell
The heel will produce a response of salivation
The learned response to the bell
Conditioned response
US
Unconditioned stimulus
CS
Conditioned stimulus
UR
Unconditioned response
CR
Conditioned response
Examples of classical conditioning
Learning to feel upset at the the sight of flashing police lights in your rear view mirror
Learning to feel anxiety when you hear the sounds at the dentist’s office
Learning sexual arousal to objects that have been associated with sexual arousal in the past
Feeling tender emotions when you hear a song that was associated with your first romance
A new mother whose breasts start to produce milk when she heard her baby’s cry
Learning to feel emotional arousal to certain words
The famous case of “little Albert”
Little Albert
Learning fear
They believed traditionally that responses that can be classically conditioned are involuntarily responses
Psychogists
Involuntary responses
Heart rate changes Gastric motility Sweating Eye blinks Sexual arousal
Voluntary responses are molded through their rewarding and punishing consequences
Operant conditioning
Evolutionary “purpose” of classical conditioning
It helps the body prepare itself for an expected or likely event.
For example, if food is likely, salivation aids the digestive process. If a painful shock is likely, the body prepares itself for this stressor
Important terms and concepts in CC
Extinction
Spontaneous recovery
Generalization
Semantic Generalization
A weakening of the conditioned response when there ceased to be a pairing between the CS and the US
Extinction
The tendency for a conditioned response to reappear after extinction takes place
Spontaneous recovery
The tendency for an animal or person not only to condition to the exact CS used during conditioning trial but also to similar stimuli
Generalization
If a dog is conditioned to salivate to a particular bell, it may also salivate to other cells as well
Generalization
A kind of generalizations which occurs only in people
Semantic generalization
Some factors that influence classical conditioning
Time delay between CS and US
Time arrangement of CS and US
Forward
Trace
Simultaneous
Backward
When people learned conditioned responses to words, they may generalize the responses to the objects or concepts that the words refer to
Semantic generalization
Example of semantic generalization
Learn prejudiced feelings to a bigoted label, you may generalize them to the people referred to by the label
If the word “white” is paired with electric shocks and you learn to the afraid of the words- you may also show fear responses to the word light which is semantically related to the word “white”
When people learned conditioned responses to words with similar meanings
Semantic generalization
CS comes first and while it’s still going, the US occurs
Forward you
CS comes first and after it stops, the US occurs
Trace
CS and US occur at the same time
Simulataneous
CS occurs after the US has started
Backward
CC
Classical conditioning
CC occurs when the CS and US occur together, in time and space;
Contiguity (Pavlov’s View)
CC occurs only when the CS providers some information ahead of time about the likelihood of the US occurring
contingency
Evidence of contiguity vs contingency
Effects of CS, US time arrangements
Blocking experiments
Not similarity to British associationist views
Contiguity
What happened if animals are first conditioned to blink (CR) to one CS (a sound) for 8 trials, and then light and a sound (two CS’s) are paired with the air burst for another 8 trials?
Blocking experiments
Will the animal show a CR to the newly added CS?
Blocking experiments
A kind is stimulus-response learning (the CR is “hooked to” the CS)?
Classical conditioning
Kind of stimulus-stimulus learning (the animal learns that the CS “signals” the US)?
Classical conditioning
What happens if we prevent an animal from making the CR by paralyzingly the muscle?
Response-prevention paradigm
When the paralysis is removed will the animals show the CR?
Response-Prevention paradigm
In Pavlov’s original experiments, the dogs were hungry. What happens if we condition dogs to salivated to a bell and then allow the dogs to eat until there stuffed. Will they then salivate to the bell
The “US devaluation” paradigm
The unusual case of learned taste aversions: conditioning can occur in on trial; the time delay between CS and US can be long
Biological preparedness and classical conditioning
Animals can learn some kinds of CR more readily to do some kinds of CS than to the others (visual cues)
Biological preparedness and classical conditioning
CR
Food aversions
CS
Smell, taste
Operant conditioning
A. Edward Thorndike’s (1898) cat puzzle box
Hungry cats locked in a box, which could be opened only if the cat pulled an unlatching device (a loop of wire)
A. Edward Thorndike’s (1898) cat puzzle box
At first cats randomly moved, meowed and clawed but gradually the became better (quicker) at getting out of the box with successive traits
A. Edward Thorndike’s (1898) cat puzzle box
Rewards of reinforcers strengthen stimulus-response connections; a mechanistic, unthinking view of the effects of reward
Thorndike’s “law of effect”
A rat allowed to freely roam through a maze still seems to learn it layout, even when the rat is not rewarded
Tolman’s notion “latent learning”