Learning Theories Flashcards
What does the key assumption: The importance of the environment mean? (learning theories)
Behaviourists believe that our social environment can influence our behaviour. This learning approach assumes that our behaviour is caused by nurture rather than nature.eg manners, racism
What does the key assumption: The processes of learning mean? (learning theories)
The law of effect: frequency of the behaviour is determined by the consequences of the action.The law of exercise: the connection between an action and a consequence is stronger if they have been connected a number of times.eg rewards for doing chores
Define unconditioned stimulus (UCS)
A natural stimulus that causes the initial reflexive responseeg smell of food -> salvation
Define unconditioned response (UCR)
A natural reflexive automatic response to a stimulus
Define neutral stimulus (NS)
A stimulus that doesn’t cause any reflexive responseeg whistling doesn’t cause salivation
Define conditioned stimulus (CS)
A previous neutral stimulus that after becoming associated with the UCS, eventually comes to trigger a conditioned response
Define conditioned response (CR)
A learnt automatic response to what was previously a neutral stimulus as it has been associated with the UCS
Define extinction
If the CS is not paired with the UCS occasionally after conditioning, then the CR will die out. The animal/person has learnt the CS no longer means the UCS will be present.eg If food isn’t presented with a bell, the bell won’t cause salivation
Define spontaneous recovery
This occurs after extinction. The CR returns when there is no more pairing of the NS and UCS. It soon becomes extinct again.eg salivating to the bell has become extinct. Food is no longer present with the bell. The dog hears the bell and starts salivating.
Define stimulus generalisation
A classical conditioning response is seen with other stimuli that are similar to the CS. The more similar to the original CS the stronger the response. eg If a dog salivates to a bell sound, it will generalise the response and salivate when it hears similar bell sounds.eg If a person is scared of one dog due to being attacked, they may be scared of all dogs.
Lisa likes pizza and salivates when she sees it. Lisa’s boyfriend always brings her pizza on a Friday night. Now Lisa salivates when she sees her boyfriend.Explain this using the classical conditioning formula
UCS : Pizza –> UCR : SalivationNS : Boyfriend + UCS : Pizza –> UCR : SalivationCS : Boyfriend –> CR : Salivation
2 Strengths of Classical conditioning
Watson and Rayner - Paired a loud noise (hammer banging metal) with a white rat. After a few pairings, Albert (a baby under 1yr old) became scared of white rats.Pavlov (1927) - found that dogs would salivate to the ticking of a metronome after it had been paired with the UCS of food.
2 weaknesses of Classical conditioning
It is a limited explanation of learning as it only deals with reflexive behaviour, and most of our behaviour isn’t reflexive. Making it reductionist.A lot of studies on classical conditioning use animals. This is not generalisable as they don’t represent humans as we may have different brains and are more advanced.
What did Pavlov find to happen when a dog encountered a stimulus of food?
salivation
Why did Pavlov use a soundproof lab?
He created a soundproof lab to see if precise stimuli would evoke a response in conditions that ensured no direct contact between the dogs and experimenter.
What happened in Pavlov’s study?
The dog was shown a NS (metronome) immediately before the food arrived.
What did Pavlov find to happen when the dog was presented the NS?
The dogs learned to associate the metronome (NS) with food.After a while, just the sound of the metronome would cause salivation.
What did Pavlov conclude?
That environmental stimuli that had no previous relation to a reflex action could, through repeated pairing, trigger a salivation reflex. Through the process of associative learning (conditioning) the conditioned stimulus leads to a conditioned response.
How did Pavlov find that dogs showed stimulus generalisation?
The more similarity there was between a new NS and the CS, the greater the amount of salivation from the dog.
What other NS did Pavlov use to test for reliability?
A vanilla odourA visual test involving a rotating disk
Give 2 strengths of Pavlov’s study
Pavlov used carefully controlled environments - objective and scientificRepeated classical conditioning experiments on dogs - reliable
Give 2 weaknesses of Pavlov’s study
Used animals (Dogs) and so can’t be generalised to humans - generalisabilityPavlov was unable to measure brain activity in any direct way and so had to assume.
Define positive reinforcement
Occurs when something pleasant is given in response of a desired behaviour
Define negative reinforcement
Occurs when something unpleasant is taken away in response of a desired behaviour
Define positive punishment
Occurs when something unpleasant is given in response to an undesired behaviour
Define negative punishment
Occurs when something pleasant is taken away in response to an undesired behaviour
Define primary reinforcement
Satisfies a basic need such as hunger, thirst etc
Define secondary reinforcement
Doesn’t satisfy a basic need but allows us to get an object that will eg money, loyalty cards
Define continuous reinforcement
When a desired behaviour is reinforced every time it is displayed
Define fixed ratio reinforcement
When reinforcement takes place after a certain number of times the desired behaviour is displayedeg paid for every 100 items a person makes in a factory, immediately after they have a break and then work hard on the next 100
Define variable ratio reinforcement
When reinforcement takes place after an unpredictable average number of times the desired behaviour is displayedeg gamblers receive pay outs after variable numbers of attempts, it’s persistent even without guarantee
Define partial reinforcement
When reinforcements are offered for some instances of the desired behaviour being displayed
Define fixed interval reinforcement
When reinforcement takes place after a set amount of time if the desired behaviour has been displayed in that period of timeeg kid receives pocket money each Saturday if they’ve tidied their room during the week
Define variable interval reinforcement
When reinforcement takes place after an unpredictable, average amount of time for desired behaviour
Give 2 strengths of operant conditioning
Vaughan et al - found calves could learn to associate a stall with urinating, through the use of rewardsWeiss and Wilson - gave 4 tortoises food as reward and the tortoises learned to approach the red plastic ball on a stick Videan et al - used positive reinforcement to train chimpanzees to present parts of their body for anaesthetic injections causing the animal less stress compared to those that had to be restrained
Give 2 weaknesses of operant conditioning
Most of the studies use animals, reducing generalisabilityBreland and Breland - gave pigs a reward for putting a wooden token into a piggy bank. The pigs did not do this but would drop it in imitation of their natural rooting behaviour. Concluded that OC only works if it’s reinforcing behaviour similar to natural behaviour
Define observation
When people see others people’s behaviour.Its an active process in which we chose to focus our attention to the modelled behaviour.Must grab our attention and be seen
Define Imitation
The process of copying someone else’s behaviour.It leads to the acquisition of new behavioursNo need for reinforcement.Imitation depends on if the modelled behaviour is from a role model or not.
Define modelling
When a specific behaviour is demonstrated by a role model
Define vicarious reinforcement
Indirect reinforcementThe model is reinforced for their behaviour. The model being reinforced makes it more likely for the observer to imitate the behaviour.
Define attention
The attention must be noticed otherwise learning won’t occur
define retention
The behaviour seen must be stored in our memory
Define reproduction
The behaviour seen must be able to be replicated (opportunity/capability)
Define motivation (reinforcement)
The incentive to carry out the behaviour, which can be motivations through vicarious reinforcement before the behaviour is done or direct reinforcement after the behaviour is done.
What characteristics does a role model have?
Relevance - similar to the observerPower - position of powerHigh Status - some sort of position with statusAppropriate behaviour - behaviour is right for the person who caries it outWarmth - they’re friendly and likeable Attractive - visibly appealing
What are the 4 aspects of vicarious reinforcement?
Modelling effectEliciting effectDisinhibiting effectInhibitory effect