approaches in psychology

the origins of psychology

descartes and dualism

wundt and introspection

skinner, watson and behaviourism

further progress with other approaches

the learning approach: behaviourism

introduction and assumptions (A01)

classical conditioning and examples

operant conditioning and examples

evaluation (A03)

the learning approach: social learning theory

the cognitive approach

introduction and assumptions (A01)

evaluation (A03)

introduction and assumptions (A01)

the computer analogy and theoretical models

schemas

the emergence of cognitive neuroscience

evaluation (A03)

the biological approach

introduction and assumptions (A01)

the biological basis of behaviour

natural selection and evolution

evalution (A03)

the psychodynamic approach

introduction and assumption (A01)

freuds tripartite personality

the psychosexual stages

evaluation (A03)

the humanistic approach

introduction and assumptions (A01)

incongruence and self-actualisation

rogerian therapy, conditions of worth and maslow's hierarchy of needs

evaluation (A03)

comparison of approaches

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  • in the 17th century, Descartes suggested that the mind and the body represented a dualism, and that the two interact in different ways to produce different behaviours and thoughts, this was the basis for the nature versus nurture debate
  • psychology = "the scientific study of behaviour and mental processes and how these are affected by internal and external factors"
  • science = "the pursuit and application of knowledge and understanding of the natural and social world, following a systematic methodology based on evidence"
  • therefore, the features of science are as follows: a universal paradigm, theory construction, hypothesis testing, deduction, falsification, replicability, objectivity and the empirical method
  • in 1879, Wundt set up his first laboratory where he adopted the use of introspection
  • introspection is defined as "a means of learning about one's own currently ongoing mental states or processes, introspective knowledge is often held to be more immediate or direct than sensory knowledge
  • it features 3 conditions: the mentality conditions (aims to generate beliefs about mental states and events), the first-person conditions (aims to generate beliefs about the individuals own mind) and the temporal proximity condition (generates beliefs and describes the individuals current mental life)
  • Wundt isolated consious thoughts into basic structures of thoughts, processes and images, in a process called structuralism
  • the method of data recording was highly scientific e.g. the same stimulus was used eachtime, allowing for replication under standardised conditions, hence producing reliable data
  • skinner disagreed with the subjective nature of introspection, in which the findings differed greatly from individual to individual, making it difficult to establish general laws and unifying principles of behaviour and cognition
  • therefore, in the 1930s, skinner's idea of radical behaviourism (that private events could be measured and quantified in the same way as observable behaviour) was tested using the laboratory experiment method of research
  • this allowed for the objective measurement of observable behaviour, providing reliable data through controlling and eliminating the effects of extraneous and confounding variables, by using controlled conditions
  • this marked the beginning of psychology as a scientific discipline
  • the cognitive approach = with the invention of the computer in the 1960s, cognitive psychology flourished as psychologists had a metaphor for the functions and workings of the mind
  • social learning theory = Bandura also agreed with behaviourist principles (i.e that behaviour is learnt through experience) but argued that these principles are better applied to a social context
  • the biological approach = advances in technology, particularly with brain scanning techniques in the 1970s, allowed psychologists to objectively observe and measure the biological basis of behaviour
  • the behaviourist approach is an approach to explaining behaviour which suggests that all behaviour is acquired and maintained through classical and operant conditioning, hence only behaviour which can b objectively measured and observed is studied, as demonstrated by Skinner's Box, this is due to the founders of behaviourism, Watson and Skinner, disagreeing with the subjective nature of Wundt's introspective methods, and the inability to formulate general laws and universal principles based on his observations
  • from a behaviourist perspective, the basic laws governing learning are the same across both non-humans and humans, therefore, non-human animals can replace humans in behaviourist experimental research
  • Classical Conditioning = a type of learning which occurs through associations made between the unconditioned stimulus and the neutral stimulus, before conditioning, the unconditioning stimulus (UCS) produces the UCR, during conditioning, the NS is repeatedly paired with the UCS, producing an UCR, after conditioning, the neutral stimulus becomes the CS, producing the CR
  • Pavlov demonstrated that dogs could be conditioned to salivate upon hearing a bell, as follows:
  1. before conditioning, the UCS (food) produced an UCR (salivation)
  2. during conditioning, the UCS was repeatedly paired with a NS (a bell), to produce the same UCR of salivation
  3. an association was made between the UCS and the NS
  4. after conditioning, the NS became the CS, producing the conditioned response of salivation
  • extinction occurs when the CS is no longer paired with the UCS, so the CR becomes extinct/disappears
  • spontaneous recovery occurs when the individual carries out the CR some time after extinction has occured
  • generalisation occurs when slight changes in the CS, such as different pitches of the bell used in Pavlov's experiment, still produces the same CR
  • Operant Conditioning = a type of learning where behaviour is acquired and maintained based on its consquences, reinforcement increases the likelihood of the observed behaviour being repeated, whilst punishment (an unpleasant consequence of behaviour) decreases this likelihood
    consequence of an electric shock
  • there are two types of reinforcement: positive and negative
  • positive reinforcement occurs when we carry out a behaviour to receive a reward e.g. completing homework to receive priase from a teacher
  • negative reinforcement occurs when we carry out a behaviour to avoid negative consquences e.g. completing homework to avoid being given a detention
  • Skinner's Box = Skinner demonstrated, using a rat, the mechanisms of positive and negative reinforcement, positive reinforcement was shown when the rats pressed down on a lever to receive food as a reward, and subsequently learnt to repeat this behaviour to increase their rewards, negative reinforcement was shown when the rat learnt to press down on the lever to avoid the unpleasant consequence of an electric shock

✅ scientific rigour
✅ real-life applications
⛔ environmental determinism
⛔ cost-benefit analyses wiht the use of animals in experimental research

  • social learning theory (SLT) suggests that learning occurs both directly, through CC and OC, and indirectly, through vicarious reinforcement
  • assumes that learning occurs through the following stages: an observer identifies themselves with a desirable role model, this role model displays or models a specific behaviour, which is imitated by the observer, the likelihood that there observed behaviour will be imitated is increased if the role model is seen to be 'vicarious reinforced' or rewarded, therefore, the consequences of the observed behaviour are more important than observing the behaviour alone
  • role model = a person with whom the observer identifies with, the role model is usually attractive, has high social status, is of similar age and the same gender to the observer, this model can exert influence indirectly by not being physically present in the environment but, for example, seen in the media
  • identification = the process by which an observer relates to/ associates themselves with a role model and aspires to become more like that role model
  • vicarious reinforcement = a type of indirect learning which occurs when an observer sees their role model being rewarded for displaying a certain behaviour, the observer is then motivated to imitate this behaviour, in an effort to receive the same reward
  • mediational processes = cognitive processes which mediate/intervene between stimulus and response, the 4 mediational processes are: attention, retention, motor reproduction and motivation
  • the first two mediational processes are involved with the observation and understanding of the behaviour, whilst the latter two are involved in the actual imitation of the behaviour, this separation means that observed behaviours do not always need to be reproduced at the same time

✅ acknowledges the role of human cognition
⛔ demand characterisitcs in Bandura's Bobo Doll experiment
⛔ Bandura's Bobo Doll experiment ignores the biological differences between boys and girls

possible applications (A02)

Bandura’s Bobo Doll Study (Bandura, Ross and Ross, 1961) - 36 boys and 36 girls, aged between 3 and 6 years old, were tested, there were three experimental groups with the first being exposed to real-life aggressive models, a second group observing the same models displaying aggressive acts on film and a third group viewing an aggressive cartoon character, the researchers found that the children who’d observed an aggressive role model behaved more aggressively themselves towards the Bobo doll compared to the non-aggressive role model control group, links can be made to the process of social learning theory

  • assumes that the scientific and objective study of internal mental processes is possible
  • however as these private processes cannot be directly observed, cognitive psychologists formulate conclusions of their workings, through making inferences, based upon observable behaviours
  • therefore, much of the work of cognitive psychologists is the indirect measurement of cognition
  • the cognitive approach sees mental processes as being separate from the brain
  • cognitive psychologists use computer models and theoretical models to better understand and model cognitive processes, through the use of analogies
  • an example of a theoretical model would be the working memory model, which is diagrammatic representation of short-term memory, made up of the following cognitive components, through which info flows: central executive, phonological loop, visuo-spatial sketchpad and the episodic buffer
  • analogies can also be made between the workings of a computer and the functions of the human brain, for example, both contain a series of 3 processes: input, the use of a processor (e.g. the brain) and the production of a comprehensible output (e.g. computer code or human language)
  • the invention of the computer in the 1960s was crucial in the development of cognitive psychology, as psychologists now had a metaphor for the mind
  • schemas are 'packages' of ideas and knowledge about a certain person, place, object or time, they are generated through experience, becoming more sophisticated through time
  • they also act as mental frameworks, providing us with 'mental shortcuts' so we can process large volumes of data quickly and efficiently, thus avoiding sensory overload
  • however, since schema are 'pre-conceived', they may lead to perceptual distortions due to having an already established mental framework
  • cognitive neuroscience is defined as 'the scientific field concerned with the study of the biological processes and aspects that underlie cognition, with specific focus on the neural connections in the brain which are involved in mental processes
  • a brief history of the emergence of cognitive neuroscience is detailed below:
  1. Brain Mapping in the 1870s = Carl Wernicke, based on case studies of patients who all had damage to a specific area of the brain and all suffered from the same type of aphasia (Wernicke's), inferred that Broddman's area 22 must be involved in language comprehension
  2. Objectively Investigating Brain Localisation Theory in the 1970s = advances in technology meant that it was possible to systematically measure and observe the neural processes which coincide with specific brain functions, for example, using PET scans, Petersen et al (1988) found evidence of Wernicke's area being activated during a listening task and Broca's area being activated during a reading task
  3. Current Focuses of Cognitive Neuroscience = current research focuses on the neural basis of model-based planning (including the role of the dorsel hippocampus), the neurological basis of autism, and also the neural basis of moral reasoning (involving the ventral striatum)

✅ scientific methods and rigour
⛔ overly-abstract concepts
✅ practical applications of cognitive neuroscience

  • assumes that we all have free will and are 'mistresses' and 'masters' of our own development, so we can ignore the influence of internal and external factors on our behaviour
  • sees self-actualisation, as achieved by being the top level of Maslow's hierarchy of needs, as a crucial part of being human
  • due to having free will, we also have the ability to progree through this hierarchy of needs and better ourselves
  • the 'self' is a term to describe all the ideas and values we have about ourselves, including perceptions of our abilities
  • the 'ideal self' decribes our perception of the best version of ourselves
  • when there is too large a gap between the self and the ideal self, we experience incongurence, the consequent negative feelings of low self-worth and low self-esteem prevent us from progressing through Maslow's hierarchy, with the aim of achieving self-actualisation
  • self-actualisation refers to the innate desire we all have to become the best version of ourselves, through personal and psychological growth i.e. "achieving one's full potential"
  • rogerian therapy aims to reduce the gap between the self and the ideal self, thus increasing the likelihood of achieving congruence and subsequently, self-actualisation
  • according to Rogers and Maslow, conditions such as low self-esteem and low self-worth originate in childhood, where adults restrict the love they show towards their children, by imposing conditions of worth e.g. "i will be proud of you only if you achieve top grades at school", this represents a lack of unconditional positive regard which the patient most likely lacked during childhood
  • these therapies view patients as 'experts' of their conditions, and so they are encouraged to arrive at their own solutions to these problems, with the help of a therapist

✅ practical application to therapy
✅ holistic approach
⛔ untestable and subjective concepts
⛔ a culture-bound explanation of behaviour

  • according to the biological approach, humans are biological organisms made up of physiological processes
  • therefore, all thoughts, ideas and cognitive processes must be biological in origin, this means that the mind 'lives' within the brain, and is not separate (as viewed by the cognitive approach)
  • the actions of genes, hormones, neurotransmitters and neurochemical mechanisms must be understood in order to explain behaviour fully
  • heritability coefficients can be used to quantify the genetic or biological basis of a certain characteristic, for example, IQ is said to have a heritability coeffcient of 0.5 (Plomin) and so the influence of nature (genetics) and nurture (the environment) are equal
  • behaviour genetics is defined as "the study of the influence of an organism's genetic composition on its behaviour and the interaction of heredity and environment insofar as they affect behaviour", therefore behavioural genetics is crucial in researching the extent to which behavioural characteristics are inherited in the same way as psychological characteristics
  • an individuals genotype is their genetic make-up, where a gene is a short section of DNA coding for specific proteins
  • an individuals phenotype is the physical expression of their genotype - therefore, the interaction between the phenotype and the environment results in individual behaviour
  • two people may have the same genotype bt different phenotypes, this may be due to personal choices they've made to alter their appearance, such as dying their hair or piercing their ears, or due to the influence of epigenetics

epigenetics is a change in gene expression, without altering an individuals genetic make-up, epigenetic markers, such as DNA methylation and histone tail modification can be left on DNA through exposure to certain environmental factors, such as specific diets and pollution

  • natural selection = the mechanism of evolution, the theory suggests that any genetically-determined behaviour, which gives the individual a selective advantage (increasing their chances of surviving, reproducing and passing down this beneficial allele onto their offspring), will be present in future generations
  • this is due to the genetic transmission of 'beneficial' characteristics from one generation to the next
  • examples of genetically-determined behaviours with a selective advantage include: avoiding fire and deep water (these are the prepared stimuli suggested by Seligman's theory of learned prepareness), certain individuals having longer necks (Lamarck's example of an animal who is better adapted to reaching and eating leaves at the tops of trees) and specific cows producing more milk (increasing the chance of survival of their young)

evolution = the process by which organisms change over time as a result of changes in heritable physical or behavioural traits

✅ practical application in the development
⛔ biological determinism
⛔ twin studies cannot differentiate between the effects of nature and nurture
✅ scientific rigour and methods: the biological approach uses EEG, PET and fMRI scans to objectively and systematically measure the biological or neural basis

  • Freud adopted the use of psychic determinism = this is the idea that all behaviour is caused by unconsious internal conflicts, over which we have no control
  • there are 3 levels of consiousness: the conscious, preconscious and unconscious
  • we are only aware of our conscious, contexts of the preconscious are revealed through parapraxes, slips of the tongue and dreaming, therefore, since we are completely unaware of our unconscious, inferences of its workings can be made through the psychoanalysis (analysing symbols in dreams) and psychotherapy
  • the unconscious stores our biological drives and instincts (e.g. hunger, thirst and sex) as well as upsetting and disturbing thoughts repressed from the conscious
  • Freud viewed the personality as made up of three components i.e. 'tripartite', these are the Id, ego and superego
  1. Id = this is the innate part of the personality, and operates on the pleasure principle, therefore, this Id constantly demands instants gratification (e.g. to fulfill innate, biological instincts, such as hunger and thirst) and so is in conflict with the superego
  2. ego = formed during the first 3 years of life, and operates on the reality principle, the ego helps to resolve the conflict between the id and the superego through the use of defence mechanisms (repression, denial and displacement), the strenght of the unconscious depends upon how efficiently the ego resolves this conflict
  3. superego = formed at the end of the phallic stage, and operates on the morality principle, this contains the child's internalised sense of right and wrong, based upon their same-sex parent, the superego is in constant conflict with the Id.
  • Freud adopted a nomothetic approach by suggesting that there is a series of developmental stages through which all children progress, and in the same order
  • each stage is characterised by a conflict, which must be resolved to pass to the next stage, apart from latency
  • failure to do so results in 'fixation' at that stage, where dysfunctional behaviours associated with the stage are carried forwards to adulthood
  • the ideas of the oedipus and electra complexes were developed on the basis of case studies conducted on Little Hans, where Freud suggested that Little Hans' phobia of horses stemmed from a fear towards his father, due to having sexual desires for his mother
  • this is an example of the idiographic approach to research (i.e. the use of case studied), but with a nomothetic application (i.e. all boys experience the Oedipus Complex, whilst all girls experience the Electra Complex)
  • oral stage = ages 0 to 1/focus on mouth, tongue, lips/major development: weaning off of breast feeding or formula/ adult fixation example: smoking, overeating, nail biting
  • anal stage = ages 1 to 3/focus on anus/major development: toilet training/adult fixation: thoughtlessness, messiness
  • phallic = ages 3 to 6/focus on genitals/major development: resolving oedipus, electra complex/deviancy, sexual dysfunction
  • latency = 6 to 12/no focus/major development: developing defense mechanisms/no adult fixations
  • genital = ages 12+/focus of genitals/major development: reaching full sexual maturity/adult fixation: if all stages were completed, then the person should be sexually matured and mentally healthy

⛔ unconscious concepts, not possible to objectively and systematicallt measure it
⛔ the use of an idiographic approach/case studies, findings may lack ecological validity
⛔ psychic determinism
✅ practical applications