(Y1) learning theories Flashcards
what are the basic assumptions of learning theorists / behaviourist approach?
learning theorists take the view that humans are born a ‘blank slate’ (tabula rasa) and that everything we go on to do has been learned. all behaviour is a response to a stimulus, so the explanation for all human behaviour is found in a person’s environment, not their mind or feelings.
- people are products of their environment, all complex behaviours have been learned.
- learning (and consequently behaviour) is under the control of the environment
- doing psychology means understanding what people have learned and how
- only observable behaviour should be studied, speculation about mental processes should be eliminated.
what theory refers to learning by association?
classical conditioning
what is classical conditioning?
classical conditioning refers to learning by association. classical conditioning essentially refers to a behavioural procedure in which a biologically potent stimulus is paired with a neutral stimulus. this is known as conditioning as an automatic conditioned response is paired with a specific stimulus.
unconditioned stimulus
(definition)
a stimulus that leads to an automatic, innate response.
unconditioned response
(definition)
a response that occurs due to an unconditioned stimulus. this is our natural tendency to react to certain stimuli (e.g. when we start to laugh after being tickled). this is based on biology, it is innate and doesn’t require a psychological explanation.
neutral stimulus
(definition)
something that doesn’t usually affect us, elicits no response
conditioned response
(definition)
a conditioned response occurs after being paired with an unconditioned stimulus after a period of time. this association is ‘learning by association’ which is known as conditioning.
who proposed the theory of classical conditioning?
ivan pavlov in his experiment ‘pavlov’s dogs’
conditioned stimulus
(definition)
after conditioning, the neutral stimulus becomes a conditioned stimulus because it produces the same reaction from us that the UCS used to produce. there is something artificial about this learned response to a CS, therefore it is known as a conditioned response (CR).
- the CR does not feel artificial to the person doing them
- conditioned stimuli gradually lose their association with the original unconditioned stimulus. this process is known as extinction and it can take a long time.
- once an association is formed, it is never truly forgotten. even after extinction, a CR can reappear. this is known as spontaneous recovery.
- once a CR is formed, there is a tendency for it to appear in response to other things other than the original CS. this is called stimulus generalisation when people continue to make associations with stimuli similar to the CS that will produce the CR.
what is the most famous research into classical conditioning?
pavlov’s dogs experiment
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explain pavlov’s dogs’ experiment
(refer to technical terminology as in classical conditioning)
- (before conditioning)
the food acted as an unconditioned stimulus which elicited the dog’s unconditioned response, which was to salivate in reaction to the food. - (before conditoning)
the bell was rang and this acted as a neutral stimulus which elicited no conditioned response and the dog therefore, did not salivate or react in response to the bell being rang. - (during conditioning)
the bell (NS) becomes paired with the food (UCS), which the dog responds to with salivation (UCR) - (after conditioning)
the bell becomes the conditioned stimulus and elicits a conditioned response of salivation from the dog alone.
this proves the principles of classical conditioning that suggest how we learn via association. in this manner, neutral objects can be paired with unconditioned stimuli to elicit a conditioned response.
research into classical conditioning
Pavlov’s Dogs Experiment
- The Classic Study in the Learning Approach is Watson & Rayner’s (1920) “Baby Albert” study, which uses Classical Conditioning to produce a phobia in a baby boy. This shows that Classical Conditioning explains how humans learn too.
However, other research into Classical Conditioning has been less successful. David H. Barlow (1966) carried out a series of procedures in the USA to ‘cure’ homosexuals of their same-sex attraction. The process involved using stomach-churning descriptions and images to produce an urge to vomit – this is the UCS producing a UCR. Then images of attractive same-sex partners were paired with the disgusting imagery. This associating of UCS and NS produced a CS instead; a sense of nausea and disgust (CR) was felt whenever the men were presented with a same-sex partner (CS). Stimulus generalisation meant this CR was generalised to any same-sex partner. Up to 50% of the young men treated in this way seemed to change their sexual orientation.
Martin Seligman (1993) reports how these studies generated great excitement in America and prompted many doctors and judges to recommend using conditioning to change the behaviour of homosexuals and paedophiles (homosexuality was illegal at the time many people confused it with paedophilia). However, the conclusions were not valid. Most of the men who stopped their homosexual activities after the treatment were bisexuals; among men with exclusive homosexual orientation, the results showed very little success. However, many patients reported feeling traumatised and violated by the treatment, especially when other researchers used electric shocks instead of disgusting imagery as their UCS.
This sad story indicates that Classical Conditioning does not have the same effect on humans as on dogs. Some psychologists suggest that characteristics like homosexuality are ‘essential’ behaviours that cannot be greatly modified by conditioning. It is also possible that cognitions are involved in human sexual attraction – feelings like ‘love’ for example – so it is not just a matter of conditioning people not to behave in a particular way; you need to take into account how they feel.
evaluate (AO3) classical conditioning
Credibility
There’s a lot of research in support of the Classical Conditioning, including the studies by Pavlov (1927) and Watson & Rayner (1920) that you will meet in this course. This research isn’t just from the start of the 20th century; it continues to the present day, with brain scanning revealing “reward centres” in the brain that activate when pleasant associations are formed.
Moreover, a lot of this research is strictly scientific, being carried out on animals in lab conditions or using brain imaging techniques like MRI. Because the theory only looks at behaviours (rather than cognitions), every step in the conditioning process is observable. This adds to the credibility of the theory, since you can see it happen with your own eyes.
Objections
Although research on dogs and other animals shows conditioning taking place, generalising the conclusions to human learning is not so clear-cut. For one thing, there are other learning theories – Operant Conditioning and Social Learning Theory – and it is usually difficult to tell whether one or the other is largely responsible when something is learned. For example, even when associations are formed, the person is usually being rewarded or punished at the same time: George Best learned to associate drinking with nausea, but drinking was still rewarding for him because it was pleasurable.
The theory focuses entirely on the nurture side of the nature/nurture debate. It is possible some people are born with predispositions towards behaviours, rather than learning them through conditioning. Many critics of Barlow’s ‘gay cures’ would say that people are born with their sexual orientation; they don’t learn it and cannot be expected to un-learn it.
The theory also focuses entirely on behaviours and ignores cognitions. Cognitions are thought-processes and include things like personality, willpower and motivation. Sigmund Freud argued that a lot of self-destructive behaviour comes from hidden thought-processes in the unconscious mind and are not learned and cannot be un-learned so easily.
Differences
Classical Conditioning has many similarities with Operant Conditioning. Both were based on lab studies done on animals – dogs for Pavlov, rats for Skinner. Both then generalise the conclusions about learning to human beings. Both of them have produced effective treatments for problem behaviours – aversion therapy and systematic desensitisation for Classical Conditioning, token economy programmes for Operant Conditioning.
However, Classical Conditioning explains the acquisition of involuntary behaviours, things that are “knee jerk reactions”. However, Operant Conditioning explains how behaviours are learned by their consequences and better explains more deliberate, voluntary behaviours.
Social Learning Theory is quite different from Classical Conditioning. For one thing, it includes cognitions as well as behaviours. Classical Conditioning only looks at how behaviours get paired and associated. SLT looks at how we draw conclusions from seeing role models in action (“If they did that and got away with it, I can too!”) so there’s a big role played by thought-processes. This makes SLT rather less scientific than Classical Conditioning, but it is better at explaining how we learn complicated behaviours like talking in “chunks” by observing and imitating, rather than having to make associating and generalise, which is a much slower and more uncertain process. SLT is a much better explanation of things like how children learn to talk or why youngsters turn to crime.
Applications
Classical Conditioning has always had huge applications for therapy, especially the treatment of “irrational” or “instinctive” problems like phobias and addictions.
Aversion therapy works by associating a dysfunctional behaviour (like drinking) with a UCR (like vomiting) to produce a new CS. If successful, the CS will produce a nauseous CR whenever drink is present. This sort of therapy works best when the patient is willing and wants the therapy to succeed. Many of Barlow’s gay men where in prison, because their homosexuality was then a crime, and they were forced to undergo the treatment.
Systematic desensitisation works by associating a troubling CR (like a phobia) with the CS (like a spider) in a relaxing, safe environment. Gradually, the patient stops associating fear with the spider. The spider goes back to being a NS, producing no reaction. This is extinction.
what is operant conditioning?
operant conditioning is a theory of learning by consequences. it is a learning process where voluntary behaviours are modified by association with the addition of reward or aversive stimuli. the frequency or duration of the behaviour may increase through reinforcement or decrease through punishment or extinction.
who developed operant conditioning?
B.F. Skinner, an American scientist.
why is operant conditioning significant for psychology?
- It shows how scientific research proceeds. Skinner’s discoveries about animal behaviour were generalised to humans based on evolutionary theory (that humans and other animals learn through similar mechanisms). This in turn led to the behaviourist school in Psychology.
- It illustrates features of Learning Theory, since it studies behaviour as a response to external stimuli without taking into account cognitions
- It is important for you to understand how Social Learning Theory developed out of this theory
what theory is associated with learning by consequences?
operant conditioning
summarise the process of operant conditioning
(refer to key terminology)
not all of our behaviour is involuntary or innate. some of it is voluntary because we know exactly what we are doing. voluntary behaviour can be learned too because we observe the consequences of our actions and this affects how we behave the next time we are put in the same situation.
- operant conditioning tells us that our behaviour is based on A-B-C so if you want to change behaviour, you must change the antecedents (what has already happened) or the consequences; it is easier to change the consequences.
A: antecedent -> B: behaviour -> C: consequence
(directs) (motivates)
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define antecedent
(in relation to operant conditioning)
something that comes before a behaviour and may trigger that behaviour.
define consequence
(in relation to operant conditioning)
something that motivates behaviour. this can either increase or decrease the behaviour, depending on whether the behaviour is reinforced or punished.
define **reinforcement **
(in relation to operant conditioning)
when the desired behaviour is rewarded. this makes it more likely to be repeated.
define positive reinforcement
(in relation to operant conditioning)
positive reinforcement rewards the desired behaviour by adding something pleasant like food, affection, a compliment, money.
define negative reinforcement
(in relation to operant conditioning)
negative reinforcement rewards the desired behaviour by removing something unpleasant like, taking away the pain or distress, stopping criticism, cancelling a fine.
define primary and secondary reinforcement
(in relation to operant conditioning)
primary reinforcement when the reward is something we want naturally, a basic need such as food, warmth or affection.
secondary reinforcement is a reward we have learned to value, like money.
define punishment
(in relation to operant conditioning)
punishment is when undesirable behaviour produces unpleasant consequences.
define positive punishment
(in relation to operant conditioning)
this punishes the undesirable behaviour by adding something unpleasant like a shock, a criticism or copying out lines