Learning Flashcards
What does classical conditioning involve?
reflexes
what does operant conditioning involve?
voluntary behaviors
What was pavlov’s contribution to conditioning?
Pavlov’s aim was to discover what caused
saliva to flow here he routed the saliva
in ducts to the outside of his dog’s
cheek so that he could collect and
measure the spittle perhaps he thought
the production of saliva might be the
result of the fixed nervous reflux like
a knee jerk after taking many
measurements of spittle he confirmed
that the dogs drooled automatically when
their tongues touched food he called the
response the salivation reflex but his
work started to run into trouble as his
dogs became familiar with the
experimental routine they started to
fill their cheek tubes before Pavlov had
a chance to stimulate their tongues the
dogs were learning to anticipate food
Pavlov tried a new technique he erected
screens so that the dogs couldn’t see
what was going on before passing meat
through the hatch he introduced a
stimulus that was totally unrelated to
feeding a ticking metronome at first the dog dripped saliva into it’s cheek tube only when the food appeared but after a number of trials the dog began to connect the ticking with the arrival of meat soon the sound alone made the dog drool eventually the dogs salivated as much to the ticking itself as it did originally to the presentation of food o straggle ale he called this new response the conditioned reflex whatever the stimulus his dogs could soon be conditioned to produce saliva Pavlov believed that he had discovered how animals learned even in the wild
What was Skinner’s contribution to conditioning?
Skinner showed how negative reinforcement worked by placing a rat in his Skinner box and then subjecting it to an unpleasant electric current which caused it some discomfort. As the rat moved about the box it would accidentally knock the lever. Immediately it did so the electric current would be switched off.
What is the definition of learning?
A relatively permanent change in behavior due to experience.
What is a definition of Pavlov’s Experiment & Classical Conditioning?
A simple form of associate learning that enables organisms to anticipate events.
What is associative learning?
Associative learning involves the encoding of relationships between events, for example, between two stimuli or between a stimulus and a response
What is a stimulus?
An environmental condition that elicits a response
what is an unconditioned stimulus? (US)
A stimulus that elicits a response before conditioning.
What is a conditioned stimulus? (CS)
A previously neutral stimulus (NS) that elicits a conditioned response (CR) because it has been repeatedly paired with a stimulus that already elicited the response.
What is an unconditioned response? (UR)
An unlearned response to an unconditioned stimulus (US).
what is a conditioned response? (CR)
A learned response to a conditioned stimulus (CS).
what is a trace?
A procedure in which the CS is presented and removed before the US is presented.
what does delayed mean?
A procedure in which the CS is presented before the US and remains in place until the response occurs.
what is a simultaneous?
◦ A procedure in which the CS and US are presented at the same time.
what does backwards mean?
A procedure in which the US is presented before the CS.
taste aversion
Conditioned taste aversion is a learned association between the taste of a particular food and illness such that the food is considered to be the cause of the illness. As a result of the learned association, there is a hedonic shift from positive to negative in the preference for the food.
what is the most powerful form of classical conditioning?
taste aversion
what was Garcia’s experiments?
Garcia conducted a two-part experiment on the development of taste aversion for rats in the first part thirsty rats were provided with saccharin flavored water
paired with a bright light and a clicking noise which was originally the neutral stimulus there were two groups of rats one was electrically shocked which was the unconditioned stimulus which reflexively evoked a pain response pain being the unconditioned response the second group was exposed to radiation via x-rays which was the unconditioned stimulus which reflexively vocht illness which was the unconditioned response for that group so
in response to this the actual rats developed a taste of urgent - saccharin
flavored water so their conditional response was avoiding the saccharin flavored water all it required was the smell of it and they’d avoid it so the second flavor was the conditioned stimulus which after one trial the rats avoided the conditioned response then Gussie conducted part two of the experiment in which the rats were offered water or
either saccharin flavored water with no
light or noise or unflavored water paired with the light and the noise the group of rats that were originally paired with the light and click noise they now avoided the water when it was preceded by the light in the click noise the lightning click noise being the conditioned stimulus the conditioned response being the rats avoiding the water that is the Association to be made between the light and the click sound with pain the second group of rats that became ill from the radiation that is there was a pairing of the radiation with the saccharin flavored water they now
avoided water that had that saccharin
smell so just on the smell conditioned stimulus the smell of the saccharin
flavored water they would not drink it again the Association had been made between the smell of the saccharine water and actually becoming ill by that radiation unconditioned stimulus for both group of rats a taste version had been conditioned so Garcia’s conclusion that rats had learned to avoid the unconditioned stimulus whether it be an electric shock or nausea from the drug by avoiding the water that was paired with this thus rats and indeed we can generalize these results to animals associate stimuli in ways that foster and enhance our survival survival of the fittest
what is cognitive processes in learning?
One of the higher mental processes, such as perception, memory, language, problem solving, and abstract thinking
what is a biological predisposition?
An increased likelihood of developing a particular disease based on a person’s genetic makeup. A genetic predisposition results from specific genetic variations that are often inherited from a parent.
what was the association principle?
When two or more things that are not related are somehow connected in our minds to create a relation between them.
what did John. B Watson have to do with Classical conditioning?
Used the principles of classical conditioning in the study of human emotion.
what was “The Little Albert Experiment?”
an example of how classical conditioning can be to condition an conditioned emotional response. To test the belief that fear can be acquired through classical conditioning. Fear response (UCR) with him on a mattress and a white rat (NS) within reaching distance. As he was playing with the white rat, another experimenter stood behind Albert and struck a hammer upon a suspended steel bar to produce a loud noise (UCS) 3 times. Carried out over a 17 day period
1. white rat suddenly taken from the basket and presented to Albert. As his left hand touched the animal the bar was struck immediately behind Albert’s head
2. as his right hand touched the rat, the bar was again struck
3. one week later the loud noise was again sounded every time Albert attempted to play with the white rat
4. pairing continued for a total of 7 trials
After the first stimulation the infant jumped violently and fell forward, burying his face into the mattress. He did not cry
After the second stimulation, the infant jumped violently, fell forward and began to whimper
After the seven trials, when the white rat was presented (now the CS) the baby began to cry. Almost instantly he turned sharply to the left, fell over on his left side, raised himself on all fours and began to crawl away so rapidly that he was caught with difficulty before reaching the edge of the table
The unconditioned stimulus of loud noise leads to
an unconditioned response of fear
The conditioned stimulus of a rat + the unconditioned stimulus of loud noise leads to
The Unconditioned response of fear.