Approaches - Wundt/Pavlov/Skinner/Bandura Flashcards
What is psychology?
- the scientific study of the human mind and its functions; especially affecting behaviour in a given context
What is science?
- a means of acquiring knowledge through systematic and objective investigation
Who is Wilhelm Wundt?
- known as the “father of psychology”
- opened the first experiments, psychological laboratory in Germany (helped shape psych as a science)
- aided the scientific study of psychological inquiry using controlled conditions that help to replicate results
What is introspection?
- a way of studying internal mental events
- the first systematic and experimental attempt to study the mind/mental processes by breaking down conscious awareness into basic structures of reflections, thoughts, images and sensations
How did Wundt use introspection?
- wanted to focus on perception and structuralism (theory of consciousness)
- Wundt used scientific methods to investigate introspection (paved the way for psych to be seen as a science/helped develop cognitive psychology)
- introspection was recorded under controlled conditions
- ppts focused on present experiences
- involves person saying everything that is going through their mind whilst doing an activity
What are the strengths of introspection and the emergence of psychology as a science?
- helped to develop other approaches:
- e.g. behaviourism, cognitive approach
- has formed the basis of other models
- extremely scientific:
- shares the same qualities as subjects like chemistry, biology, and physics
- high control of variables as all these subjects (including psych study behaviour in a lab setting)
- able to establish what causes behaviour:
- can be used to predict future behaviour which is useful in psychology
- e.g. high dopamine levels can cause OCD (ensure the dopamine levels are regulated)
- still used today in areas of therapy:
- can be used in cognitive therapy to alter patient’s negative thinking
- introspection can still be applied to contemporary therapy in modern society
- Wundt supports idea of reductionism:
- believed that consciousness can be broken down to its basic elements without sacrificing its properties as a whole
- studied internal mental processes by deconstructing them down into measurable units (perception, senses, experiences)
What are the weaknesses of introspection and the emergence of psychology as a science?
- Watson (1913) criticised this idea:
- this produces subjective data which can vary from one individual to the next (not objective or reliable)
- not scientific/accurate:
- Wilson claimed that psychologists have little knowledge about some behaviours/attitudes that may exist outside of conscious awareness (e.g. racism)
- fails to explain how the mind works:
- psychologists cannot see how thoughts are generated and so introspection cannot be properly observed
What is the behavioural approach?
- a way of explaining behaviour in terms of what is observed in terms of learning
What are the assumptions of the behavioural approach?
- all behaviour is learnt and involves the same processes for animals and humans (classical/operant)
- behaviourism maintains more control and objectivity within research/relies on lab experiments
What is classical conditioning?
- learning by association
- NS is repeatedly paired with an UCS
- the NS then produces the same response that is produced by the UCR alone
What is Pavlov’s (1904) study?
- dogs conditioned to salivate to the sound of a bell
- bell sound is repeatedly presented with food
- before conditioning:
- the food (UCS) produces an unconditioned response (UCR) of the dog salivating
- a bell (NS) is rung alone (no food) = no response
- during conditioning:
- the food is then repeatedly paired with the bell (UCS + NS) to produce salivation (UCR)
- after conditioning:
- when bell is presented alone (CS), the dog will begin to salivate (CR)
- ** learning has taken place and an association has been established **
What are the principles of classical conditioning (Pavlov’s research)?
-
generalisation:
- stimuli similar to the original CS (bell) will cause the CR (salivation)
-
discrimination:
- stimuli similar to the CS (bell) will not produce the CR (salivation)
- the individual is able to differentiate between the similar stimuli
-
extinction:
- the CR (salivation) will not be produced because of the bell sound
- this is because the CS (bell) is presented without the UCS (food)
What are the strengths of classical conditioning?
- research evidence:
- Pavlov’s study (dogs)
- Little Albert study (by Watson and Rayner)
- ** however, these are lab experiments and can lack ecological validity **
- model can be easily tested/observed:
- the behavioural model relies on observing behaviour that can be directly seen/measured in a highly controlled setting
- aids objectivity and replication
- helped to develop treatments of psychological disorders:
- it has helped to form treatments like flooding and systematic desensitisation (based on classical conditioning/association)
What are the weaknesses of classical conditioning?
- limited explanation:
- can only explain how learning occurs in animals and young children (does not explain how adults learn new behaviours)
- Menzies criticises the behavioural model:
- he found that only 2% of his sample of hydrophobic people had a negative experience with water
- 98% of the sample did not learn to be frightened of water
- views animals/humans as passive recipients:
- believes that they have “machine like” responses to stimuli in the environment
- this minimises their free will
- criticised by biological approach:
- this model ignores factors like genes, hormones, evolution and neural mechanisms
- there is strong research evidence that shows schizophrenia is determined by genes (implies that it is unlikely that someone would learn to be schizophrenic)
- deterministic model:
- ignores the role of free will in people’s behavioural responses
- classical conditioning anticipates an individual will respond to a CS with no variation
- people do have control over how they may respond to an association between two stimuli
- incomplete/inconsistent model
What is operant conditioning?
- a form of learning in which behaviour is shaped and maintained by consequences
- punishment, positive/negative reinforcement
What is positive/negative reinforcement and punishment?
- positive:
- receiving something positive when completing a behaviour
- e.g. getting a sticker for competing HW
- negative:
- competing a behaviour in order to avoid something unpleasure (continues in the future)
- e.g. completing HW to avoid getting a detention
- punishment:
- an unpleasant consequence caused by completing a certain behaviour
- e.g. teacher shouts at you for not completing HW (solution is negative reinforcement to avoid this)
What is Skinner’s (1953) study?
- used “the Skinner Box” to conduct research on pigeons/rats
- one hungry rat would accidentally press the lever and be rewarded by a food pellet (positive reinforcement)
- one rat would press the lever to avoid electric shock from the floor (negative reinforcement)
-
extinction:
- rat presses lever but no longer receives a reward
- so it then stops pressing the lever
-
spontaneous recovery:
- (following extinction) if the rat does receive a food pellet after pressing lever, it will “spontaneously recover” what it had previously learnt
-
schedules of reinforcement: (different methods of reinforcement)
- continuous reinforcement = every time rat presses the lever, it receives a food pellet
- fixed interval = rat presses lever and only receives food pellet during fixed time only
- fixed ratio = rat must press the lever a fixed no. of times to receive a food pellet
What are the strengths of operant conditioning?
- research evidence:
- Paul and Lentz used token economy (rewarding appropriate behaviour) to treat schizophrenic patients and found that their behaviour had improved
- Skinner research:
- highly controlled conditions that helps to establish a clear cause and effect
- nurture side of nature/nurture debate:
- states learning occurs due to environmental factors and external stimuli
- so manipulating factors in environment can effect learning and behaviour
What are the weaknesses of operant conditioning?
- Skinner Box criticised:
- he ignores the concept of free will
- suggests that past experiences involving operant conditioning will affect future behaviour
- deterministic view of behaviour
- ethical issues of Skinner Box:
- animals were placed in stressful situations which can affect their psychological and physical health
- there is also a problem with generalising the results rats/pigeons to humans (may not be applicable)
- rooted in behaviourist approach and ignores biological approach:
- bio approach states that behaviour cannot be learnt and that it is in fact heavily influenced by genetics, hormones, and neural mechanisms
- other approaches in psychology must also be considered when examining influences upon behaviour
What is social learning theory?
- where new patterns of behaviour can be acquired/learnt by observing the behaviour of others
- behaviour is learnt from the environment and also considers cognitive processes too
What are the key points of the social learning theory?
- modelling:
- requires person to model/carry out behaviour that the observer can learn
- this can be live, symbolic and can be learned by imitation
- imitation:
- children learn behaviours via imitation that are modelled by significant others
- this process tends to be more rapid than classical/operant conditioning
- characteristics
- observers ability to perform the behaviour
- observed consequence of behaviour
- identification:
- extent to which the observer relates to the model and feels that they could experience the same outcomes as the model (same sex, age)
- vicarious reinforcement:
- those who observed (aggressive) behaviour being rewarded are more likely to imitate the (aggressive) behaviour than those who observed the model being punished for it
- this shows that individuals do not need to directly experience rewards/punishment to learn new behaviours
- mediational processes:
- attention = notice behaviour of model
- retention = remember model’s behvaiour
- motor reproduction = be able to perform model’s behaviour
- motivation = willing to perform the behaviour in light of rewards
What are the strengths of social learning theory?
- great understanding of criminal behaviour:
- Akers (1998) = found that criminals engage in more criminal activities when exposed to a model that they can highly identify with
- more effective with similar model:
- makes it easier for observer to visualise themselves in the place of the model (same experience)
- Fox (2009) = when observer played computer game with similar looking model, they were more likely to engage in the same behaviours as the model
- comprehensive view of human learning:
- social learning theory recognised the importance of both behavioural and cognitive factors
What are the weaknesses of social learning theory?
- does not take into account cause and effect:
- research has found that increased associations with peers can increase the likelihood of delinquent behaviour
- however, other factors including poor and deviant attitudes can influence this
- ignores other potential factors affecting behaviour:
- ignores the role of biology/genetics which can cause people to behave in certain ways
- e.g. Bandura found that boys were more aggressive than girls regardless of the experimental situation
- sees behaviour as being determined by the environment (environmental determinism):
- does not take into account that genetics/innate behaviour can play a huge factor in determining human behaviour
What is Bandura’s (1961) study?
- 36 male and 36 female children (37-69 months of age)
- observed either aggressive/non-aggressive female/male model interacting with a bobo doll
- one condition = aggressive behaviour towards bobo doll (children made to feel frustrated, not allowed to play with the toys given)
- children were taken into the room one by one and were observed for 20 mins
- those who observed the aggressive model reproduced the same aggressive behaviour
- children who observed the non-aggressive model displayed no aggression
- 33% = observed/heard verbal aggression, repeated what they had seen and heard
- 0% of verbal aggression = children in non aggressive group
- boys were more aggressive than girls
- aggression was the greatest when the model was the same gender as the observer