Learning Flashcards

1
Q

What is Learning?

A

relatively permanent change (often in behaviour) which occurs as a result of experience

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2
Q

Define Classical Conditioning and the studies that fall under it

A

Forming of an association between two stimuli which are not usually considered to be related.
-> Pavlov’s Dog (1902)
-> Little Albert (Watson & Rayner, 1920)

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3
Q

What is the Pavlov’s Dog about and what is the aim?

A

Aim is to demonstrate the process of classical conditioning through the association of the salivary response with various stimuli
-> Ivan Pavlov noticed that dogs would naturally reflexively salivate when given food but would also salivate in response to other events associated with feeding (Footsteps, The bowl, The assistant who normally fed them (even if the food wasn’t present))
-> The food powder is therefore a stimulus- an object or event that produces a response from an organism
-> Salivation is the response- the reaction to the stimulus

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4
Q

What is the method used in the Pavlov Study?

A

-> Pavlov created an apparatus capable of holding a dog still while the amount of saliva produced was measured
-> The dogs were observed using a series of mirrors (so to reduce experimenter behaviour affecting that of the dogs)
-> The dogs were initially presented with food powder, and the amount of saliva produced was recorded
-> The presentation of the food powder was then repeated with an unrelated stimulus (e.g., ringing a bell) occurring immediately beforehand
-> After several pairings, the unrelated stimulus was presented without the food powder
-> Numerous variations of the experiment followed

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5
Q

What were the findings of the Pavlov study?

A

-> The dogs, as expected, salivated when presented with the bell and then the meat powder
->However, they then also salivated when presented with the bell only
-> Thus Pavlov concluded that conditioning has occurred: after multiple presentations, the dogs had associated the unrelated stimulus (the bell) with the food, and produced the same response

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6
Q

What are the results of the Pavlov Dogs Experiment?

A

-> An unrelated stimulus (bell ringing) did not produce the same response- neutral stimulus (NS)- bell ringing
-> Conditioning- the meat powder (US) and the ringing bell (NS) were presented together many times, producing the salivation response (UR)
->The ringing bell was presented alone, resulting in the dog salivating (dogs salivating became CR and ringing bell became CS)- acquisition
->Pavlov noted that the presentation of the neutral stimulus needed to occur immediately before the unconditioned stimulus (about half a second) for learning to occur effectively (anticipatory behaviour)
-> When pavlov repeated the procedure with (for instance) a buzzer in the place of the bell, he found that conditioned dogs also salivated at that sound also (stimulus generalisation- the tendency for a stimulus which is similar but not identical to the original CS, to generate the same conditioned response)
->If the dogs had not responded to the buzzer but only to the original bell (stimulus discrimination- when the subject responds to the original CS and not to similar stimuli)
-> Generalisation gradient- relationship between the similarity of the stimulus and the strength of the response; usually, the more similar the stronger the response
-> After conditioning has occurred successfully, Pavlov repeatedly presented the bell without providing the meat powder reinforcer afterward
->The dogs eventually ceased salivating in response (extinction- the gradual decrease in the strength or rate of a CR in response to the CS)
-> Spontaneous recovery- reappearance of a CR in response to a CS, following a rest period in which the CR seems to have been extinguished
- For instance, if Pavlov had extinguished the CR in his dogs, and then they spontaneously salivated when presented with the sound of a bell (These responses are usually weaker and shorter-lived than the original)

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7
Q

How does the Pavlov Dog’s study show relevance to Psychology

A

-> Established the basis for behaviourism and classical conditioning, spurring further work in the field
-> Classical conditioning explains how a number of behaviours are learned and so provides a means to influence or manipulate behaviour- e.g., rewards in education, animal training, advertising
-> Particularly relevant in therapy- e.g., treating phobias, taste aversions etc.

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8
Q

What are the criticisms of Pavlov Dog’s experiment?

A

-> Pavlov’s experiments are best applied to adaptive behaviours (i.e., those that help survival), such as nausea upon eating poisonous foods
-> The theory presents the learner as too passive; simply pairing stimuli doesn’t result in conditioning - the learner must make a cognitive connection between the stimulus and response
-> Use of animals is criticised - ethical issues around suffering of animals and lack of applicability directly to humans, who are far more cognitively complex

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9
Q

Who presented the Little Albert study and what is the aim?

A

Watson and Rayner, 1920 that shows classical conditioning occurring in humans
-> Aim: to illustrate and examine classical conditioning in a human child by pairing neutral objects with fear-producing stimuli

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10
Q

What is the Method used in Little Albert

A

-> Single study subject: 9 month old, ‘stoic’ male child of a hospital worker, Albert Barger (mother gave permission to researchers, but whether consent was truly informed is doubtful)
-> At 9 months, albert was presented with several stimuli (various animals, burning paper, cotton wool, masks), to which he showed no fear reaction
-> At 11 months, Albert was shown one of the animals (a white rat) at the same time that the researchers struck a hammer against a steel bar, making a loud, frightening noise (occurred twice)
-> One week later, the rat was presented to Albert again, and then five more pairings occurred. Each time the response of Albert was recorded
-> Five days later, Albert was again tested with multiple stimuli (rat, rabbit, dog, fur coat, cotton wool, 3 people’s hair, santa claus mask)
-> Five days after that, Albert was subject to further conditioning trials with the rat, and the loud noise was also paired with a dog and a rabbit. He was also exposed to stimuli in a new laboratory
-> One month after that, Albert was again exposed to multiple stimuli (santa claus mask, fur coat, rat, rabbit and dog). At this point Albert’s mother took him out of the hospital

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11
Q

What results were obtained from the Little Albert Study?

A

-> When Albert was initially presented with stimuli, he showed no fear at all (except when the bar was struck)
-> After two pairings, he began to appear afraid after seven pairings, he was loudly crying and displaying avoidance behaviours (e.g., trying to crawl away)
-> This fear reaction then occurred whether the noise was presented at the same time or not
-> When multiple stimuli were presented, Albert was still very frightened of the rat, dog and a coat, and less so of other stimuli
-> The fear faded as time passed, but was rapidly renewed with reconditioning trials, and with new stimuli introduced, significant generalisation concurred - Albert was reportedly afraid of many stimuli
-> As Albert’s mother left the hospital (and the city) and the researchers were unable to test extinguishing the fears

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12
Q

How did the Little Albert study contribute to Psychology?

A

-> The study appeared to illustrate that humans could be classically conditioned to develop phobias
-> Additionally, it appeared to illustrated that this conditioning could be generalised to similar stimuli

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13
Q

What were some criticisms of the Little Albert study?

A

-> Sample size of one (who was notably calm child) and few trials, so clearly not generalizable
-> Possibility of long-lasting psychological harm to child outweighs potential benefits
-> No informed consent from mother - not told process, risk and consequences
-> No debrief (child or mother) and conditioned response was not extinguished
-> Identification of the child (pseudonym, but enough information to narrow it to two possible individuals) breaches confidentiality

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14
Q

What is Operant Conditioning?

A

A subject operating on the environment (behaving a certain way) to generate a desired consequence (reward)

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15
Q

What are the different studies that fall under Operant Conditioning?

A

-> Thorndike’s Law of Effect (1898)
-> Skinner Box of Study (1948)

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16
Q

Define reinforcement and punishment and the different types

A

Reinforcement- consequence (stimuli) which increases likelihood of behaviour
-> Positive reinforcer- addition of something pleasant as a result of the behaviour (Lolly for each complete homework)
-> Negative reinforcer- removal of something unpleasant as a result of the behaviour (Taking away quick quiz for completed homework)
Punishment- is a consequence (stimulus) which causes a certain behaviour to occur less frequently
-> Positive punishment- is the addition of something unpleasant as a result of the behaviour (Detention for incomplete homework)
-> Negative punishment- is the removal of something pleasant as a result of the behaviour (No more blookets on Friday if there is incomplete homework)

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17
Q

what is the 3 phase model under Operant Conditioning?

A

Antecedent-Behaviour-Consequence Model
-> Antecedent- stimulus that precede a particular behaviour (Puppy is told to ‘sit’)
-> Behaviour- the voluntary action that takes place in the presence of the stimulus (Puppy sits down)
-> Consequence- the environmental event that occurs immediately after the behaviour and affects its occurrence in future (Puppy gets a treat and a cuddle-> more likely to sit in future)

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18
Q

What are the different schedules of reinforcement that Skinner identified under Operant Conditioning?

A

Fixed Ratio reinforcement- rats fed every time they press the lever a certain number of times (e.g., 5)
-> Response rate (fast)
-> Extinction rate (medium)
Fixed interval reinforcement- rats fed after a fixed time has elapsed (e.g., every 15 minutes)
-> Response rate (medium)
-> Extinction rate (medium)
Variable ratio reinforcement- rats fed unpredictably per number of presses (e.g., first 2 presses, then 15, then 5)
-> Response rate (fast)
-> Extinction rate (slow)
Variable interval reinforcement- rats fed unpredictably per time elapsed (e.g, first 8 minutes, then 1 minute, then 4 minutes)
-> Response rate (fast)
-> Extinction rate (slow)

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19
Q

Who presented the Thorndike’s Law of Effect study, When and what was the aim?

A

E.L. Thorndike proposed that animals learn response through experiencing consequences for actions (1898)
-> Aim: to observe and empirically test how animals learn

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20
Q

What was the method used in Thorndike’s Law of Effect study?

A

-> Designed an apparatus known as a ‘puzzle box’, where an animal placed within had to press a lever to escape
-> A food reward was placed outside the box to entice the subject (yay, cats) to escape the box
-> Measured the time taken to press the lever and escape the box on multiple repeated attempts

21
Q

What were the results obtained in Thorndike’s Law of Effect study?

A

-> The cats first, attempted ‘trials and error’ method of escape and the first escape occurred by random chance
-> During further trials, the time taken to escape became shorter and shorter, in a gradual and erratic pattern
-> Repeated tests with different puzzle boxes and subjects showed similar results
-> Observed the behaviour of the animals shifts from random to orderly
-> Thus thorndike proposed the Law of Effect: behaviour leading to gratifying response slowly becomes more frequent, or behaviour leading to pleasant consequences is repeated

22
Q

How did Thorndike’s Law of Effect study contribute to psychology?

A

-> Puzzle boxes still used today to test animal cognition (and apply results to humans)
-> First to apply psychology to learning, and to introduce the concept of ‘reinforcement’ in learning (not the term, though)
-> The concept of ‘Law of Effect’ drove later research which established operant conditioning

23
Q

What were the criticisms of Thorndike’s Law of Effect study?

A

-> Since all the parts of the ‘puzzle’ were not visible to animals, the conclusion that they are not linking cause and effect has been criticised
-> Thorndike’s ideas were further explored by B.F. Skinner, who proposed operant conditioning (1938)- learning a response from operating on the environment
-> He believed that learning had a cognitive component which could be measured by observing behaviour

24
Q

Why and when was the study the Skinner box published and what was the aim?

A

‘Superstitious Pigeons’ were readily trained to peck at a target for a food reward
-> Aim: to explore the effects of reinforcement on pigeons when reinforcements are not given depending on the pigeons’ behaviour

25
What was the method used in the Skinner Box study?
-> Pigeons were reduced to 75% of their normal, well-fed weight in order to induce hunger -> They were placed in a Skinner box with a food hopper (delivery container) which could be presented for 5 seconds at a time -> Pigeons were presented with food at regular intervals, regardless of their actions -> Skinner recorded his observations of the pigeon’s behaviours across time
26
What were the results that were obtained in the Skinner Box
-> Skinner noticed that at first, the pigeons didn’t seem to associate any particular behaviour with feeding -> However, once the experiment started, the pigeons began to repeat whatever behaviour they happened to be carrying out when they were fed - E.g., if they were standing on one leg when it appeared, they increased the rate of standing on one leg -> Skinner concluded that the pigeons had begun to associate the coincidental behaviours that occurred when they were fed, with the feeding itself, in that environment -> That is, the pigeons had developed ‘superstitious’ behaviours - carrying out unrelated behaviours with the belief that they are influencing the consequence
27
How did the Skinner Box study contribute to Psychology
-> Skinner proposed and demonstrated operant conditioning - the idea that behaviour is the outcome of reinforcement and punishment - in animals -> Skinner also noted parallels between behaviour of humans and that in animals (e.g., superstitious rituals) -> This is the basis for many behaviour modification therapies and also numerous education programs
28
What were some criticisms of the Skinner Box Study
-> Operant conditioning is not a full explanation of learning (only minor considerations of cognition, none of genetic or biological factors) -> Doesn’t fully explain learning in higher animals (e.g., apes and humans), which can occur without direct experience -> Can't generalise from animals to humans is not possible due to differences in anatomy and physiology as well as cognition -> Ethical issues around use of animals and ‘promoting punishment’ as an implication of findings
29
Who are the two named theorist of Observational learning?
-> Albert Bandura (1977) -> Bandura, Ross and Ross (1961)
30
Define the social learning theory and who is it by?
Bandura’s social learning theory- is the process where social influences affect an individual’s thoughts, feelings and behaviour
31
Define Observational learning?
Observational learning- where the individual watches the behaviour of others and consequences of those actions, and uses that information to guide their own future behaviour -> This is the vehicle through which the Social Learning Theory occurs
32
Define modelling
When behaviour is imitated, this is referred to as modelling - A key factor in observational learning is that an individual does not have to have direct experience in order to learn - modelling of the behaviour is enough (survival advantage)
33
Define and explain the Mediational Processes that fall under Observational Learning?
Mediational processes- refer to internal cognitive processes which determine whether an observed behaviour will be imitated or not -> Attention- refers to noticing/ attending to a behaviour and its consequences - Bandura proposed that we are more attentive and thus more likely to later imitate models Who are positively perceived, similar to us, Whose behaviour is clearly visible and stands out and who we feel able to imitate -> Retention- refers to encoding the behaviour with a meaningful mental representation - Often takes the form of a visual representation (verbal explanation of knitting= difficult) -> Reproduction- refers to replicating the behaviour in terms of motor skills -> Motivation- refers to the desire or drive to reproduce the behaviour -> Reinforcement- is the prospect of a positive result due to imitating the behaviour, which in turn increases motivation, types: - External reinforcement- being praised or paid for carrying out a behaviour is a powerful motivator - Self-reinforcement- internal goal-setting or drive to achieve certain standards can be highly motivating
34
Define Vicarious conditioning and the different types:
The concept that an individual observes a model’s behaviour and the consequences, and chooses whether or not to imitate the behaviour in line with the results -> Vicarious Reinforcement- increased likelihood of imitation if witnessing an individual being rewarded for the behaviour -> Vicarious punishment- decreased likelihood of imitation if witnessing an individual being punished for the behaviour
35
What are strengths of Albert Banduras Observational Theory
-> Bandura’s theory is strongly supported by empirical research -> It considers the role of cognition (mediational processes) in learning, and thus is a more comprehensive explanation (e.g., outlining social factors such as gender roles and peer influence)
36
What are limitations of Albert Banduras Observational Theory
-> However, the theory is criticised for ignoring biological factors (e.g., stress response, genetics) in favour of environment (reward/ punishment) -> It doesn’t explain all cognitive processes (in some cases, intentions are formed before observation, e.g., seeking out delinquent peers)
37
Who and when was the second study about Observational learning published and what was the aim?
Bandura, Ross & Ross (1961) -> Aim- to investigate if social behaviour (i.e., aggression) can be learned by observation and imitation in a controlled experiment
38
What is the method used in the Bandura, Ross & Ross study?
-> Children (36 girls, 36 boys) were recruited from Stanford University Nursery School (3-6y); informed consent obtained from parents -> Rating scales used to judge aggression of children (naturalistic observation) -> Inter-rater reliability of observers tested independently and correlation r = 0.89 -> Bobo doll: bounces back up when hit or pushed -> Children in each of 3 test groups matched based on similar aggression (matched pair designs) -> Children watched recording of adult either: - Knocking Bobo doll over, hitting with a mallet, kicking it, sitting on it and shouting aggressively (‘Kick him!” and “Pow!”) - Quietly and non-aggressively acting towards the doll - A third group did not see a recording -> Children were subjected to mild aggressive arousal (frustrated by not being allowed to play with toys) then allowed to play with the Bobo doll and other toys - 20 minutes; one-way mirror and 5-second interval ratings (240 per child) - Notes of other behaviour taken also
39
What results were obtained in the Bandura, Ross & Ross study?
-> Those children who observed the aggressive adult acted aggressively to the Bobo doll far more often, and in very similar ways to the model, than those who watched the non-aggressive model -> Boys were also more likely to imitate the behaviour of same-sex models, however, this was not the case for girls and same-sex models -> Boys were more likely to be physically aggressive; verbal aggression was not significantly different for boys and girls
40
How did the Bandura, Ross & Ross study contribute to psychology?
-> Findings support Bandura’s ‘social learning theory’- that is, children learn social behaviour (in this case, aggression) through observation- through a controlled experiment (good variable control and replication) which allows for causation -> Informs parenting and educational styles -> Paved the way for later experiments into the effect of different model types (1963) and of observing rewards and punishments (1965)
41
What were the criticisms in the Bandura, Ross & Ross study?
-> Children who had no experience with the Bobo doll were 5x more likely to imitate behaviour, suggesting the novelty of the doll was a factor -> Ethical concern: while information from the original article is scanty, the children may not have given assent and were likely deceived -> Ethical concern: the children were exposed to violence and made to feel frustrated, which fits the definition of psychological harm
42
Define and Explain behaviour modification
It is the application of classical and operant conditioning techniques to human behaviour and learning (Token economy and System Desensitisation) -> This uses reinforcement (and sometime punishment) to modify or change unwanted behaviours, and to instil or strengthen desirable ones, it alters the environment and how the individuals interact with it (behaviour therapy) -> Aims is to change the behaviour response to different situations
43
Explain Token Economy
Artificial reward and reinforcement system where the rewards are symbolic markers/tokens (Operant Conditioning) -> e.g., gold stars - primary reinforcer) -> Once enough tokens are earned, they can be exchanged for larger rewards (e.g., goods, privileges) - secondary reinforcers
44
How do you make an effective token economy?
1) Identify the desired behaviour (e.g., improved grades in spelling due to home study) 2) Set the primary reinforcement ratio: 1 gold star for every 10 minutes of spelling study at home 3) Set the secondary reinforcement ratio: for 10 gold stars, a new Pokemon card 4) Review regularly for effectiveness: update system as behaviours improve (e.g., discontinue spelling reward system and focus on writing instead)
45
What are advantages of token economy
-> Under a token economy, the person never becomes ‘full’ -> Also, unlike only offering a secondary reinforcer (e.g., laptop for an A in spelling), the primary reinforcers can maintain motivation in the longer term (immediate reinforcement usually produces better association)
46
What are disadvantages of token economy
-> Difficult to maintain behaviours once a person has left the institution (e.g., prison) -> Difficult to replace token with other social reinforcers
47
What is System Desensitisation and the different methods to treat it?
It uses classical conditioning to treat fears and phobias in humans -> The aim to replace the undesired behaviour with more productive behaviours - that is, an appropriate response to the event -> Methods include Relaxation techniques and Graded Exposure
48
What is Relaxation Techniques?
Relaxation techniques are usually taught first, in order to replace the tension associated with the stimulus -> The psychologist then usually asks questions to identify the breadth of the fear - E.g., buildings with elevators, pictures of elevators? Stationary elevators? Riding in an elevator with others? Alone? Getting stuck? -> This usually involves finding the source of the problem, in order to better understand how it impacts daily living -> A list is then drawn up, from most frightening event to least frightening event
49
Explain Graded Exposure
Each event/ situation is introduced gradually (least fear-provoking first) during therapy -> Person uses relaxation techniques to relax to each situation before being presented to another situation -> The process repeats for every item on the list -> The psychologist supports the person in their relaxation and provides cognitive reasoning about the actual danger (which is none in therapy)