component 1 Flashcards
localisation of brain function (biological)
- human behaviour is determined by a physiological cause, being g the activity on individual parts of the brain
- 2 hemispheres and 4 lobes
- Phineas gage, metal rod penetrated through frontal lobe showed aggression
neurotransmitters (biological)
- suggests that behaviour is caused by electrical and chemical communications in the brain
- e.g. raised levels of dopamine have been linked to schizophrenia, and low levels of serotonin have been linked to depression
*neurons pass neurotransmitters through the synapse and are released from presynaptic vesicles
evolutionary influences (biological)
- Charles Darwins theory of natural selection
- males subconscious desire for fertility in females
- e.g ostrich may dance to attract a mate
humans are born as a blank slate (behaviourist)
- idea that humans are born as “tabula rasa”, and that behaviour is environmentally determined and humans are born with hunger, pain and crying
- dies developed by Watson, he stated that he could turn a “dozen infants” into “any type of specialist”
- bandura tested with bobo doll experiment
behaviour is learned through conditioning (behaviourist)
- classical conditioning suggests that behaviour is learnt through association. pavlov (1902) tested with dogs teaching them to salivate with bell and treats
- operant conditioning is behaviour learnt through reinforcement. skinner (1936) tested with rats
- Gill proves operant conditioning as effective as he claims that children who get pocket money complete 20% more household chores
- Watson and Rayners little Albert study supports
humans and animals learn in similar ways (behaviourist)
- suggest that humans and animals behave in similar ways due too shared traits such as fear
- joint stimulation was used with pavlovs dogs and little Albert
- operant conditioning has been proved effective in schools and prisons
tripartite personality (psychodynamic)
id ego and superego
id is primitive, requires instant gratification and is pleasure seeking principle. ego is mediator and superego is concerned Sith moral values
each part represents a part of the brain. id represents limbic system and ego represents prefrontal Cortex
unconscious mind (psychodynamic)
conscious preconscious and unconscious
preconscious are things such as memories or knowledge that could be easily retrieved
anxiety acts as a signal to the ego that there is dysfunction somewhere
ego defence mechanisms such as repression help ease these feelings
childhood experiences (psychodynamic)
freuds psychosexual stages of development refers to a stage and age theory that all children go through at roughly the same time influenced by the location of libido
stages were: oral, anal, phallic, latency, genital
for example, Freud believed fixations at the oral stage of development could lead to an eating disorder in adulthood or an addiction such as alcohol or smoking. A fixation at the anal stage of development could lead to an adult developing potential OCD. A fixation at the phallic stage
of development could lead to a confused
sexuality
internal mental processes (cognitive)
cognitive psychologists see humans as information processors
memory, perception, attention, thinking and language
eg. to recognise a dog, you need to pay attention, perceive its features, then search through our memory store to see if anything matches and we use language to name it
computer analogy (cognitive)
both humans and computers are the same in the way that they process information
mental processes used: input, processing and recall
process stage involves memory, perception and attention
multistore model of memory made by Atkinson and shiffin (1968) shows how long term and short term memory are stores as “hardware”
schemas (cognitive)
pockets of information built from experience
built up via social interactions, which can potentially distort the information as humans may select and interpret environmental stimuli using irrelevant schemas
this may explain inaccuracies in EWT
e.g schema for burglar
bowlby methodology
opportunity sample and matches pairs design
The Binet Scale was used to test their intelligence.
The average IQ for both groups was higher than the average for the population.
quasi difference experiment
iv: whether they had stolen or not, DV: whether they were an “affectionless psychopath”
31 boys, 13 girls aged 5-17
control experiment used of children who went to the same child guidance clinic but had not stolen.
Half of the cases- instances of chronic and serious thieving lasting very long periods (Grade 4)
10 cases- persistent but irregular, mild thieving (Grade 3)
8 cases- a few thefts only (Grade 2)
4 cases- only one theft (Grade 1)
weaknesses of bowlbys methodology
unrepresentative as not all children are emotionally disturbed
violent homes could be a confounding variable
strengths of bowlbys methodology
used a control group so more reliable results and higher ecological validity
bowlbys procedure
- mental test given to children to test intelligence and how well they emotionally reacted to it
*preliminary psychiatric history was gathered from the social worker
- psychiatrist interviewed mother
*then bowl by examined the mother and child together
*psychotherapy for at least 6 months after
weakness of bowlbys procedure
could be social desirability bias in mother’s interview
strength of bowlbys procedure
strong qualitative data gained from multiple sources
bowlbys findings
- 6 categories of children: affectionless, hyperthermic, normal, depressed, circular and schizoid
- majority were affectionless, 14 out of 44
- out of those 14, 12 of them had prolonged separation from mother
*40% of thieves had prolonged separation from mothers, compared to 5% of control group
main components of systematic desensitisation
*phobia is learnt response
- sd uses reciprocal inhibition in order to counter condition the patient
- developed by Wolpe (1958)
- relaxation techniques and desensitisation hierarchy
*in vivo
*in vitro
strengths of systematic desensitisation
usefulness: Capafons et al (1988) found that after 12-28 weeks of SD, clients with a fear of flying showed less fear in a flight simulator. they also found lower objective physiological measures (such as heart rate) than the control group
holistic: MCGrath found SD successful for a wide range of anxiety disorders. 75% of patients with phobias responded to the treatment
positive ethical implications: anxiety controlled, able to provide valid informed consent and patients attend at their own free will
main components of drug therapy
antipsychotic drugs: conventional antipsychotics for positive symptoms. the drug blocks the action of dopamine by binding to the dopamine receptors
antianxiety drugs: Bz’s bind to the sites on GABA receptors and enhance the action of GABA (calming neurotransmitter)
beta blockers: reduces the activity or adrenaline, binds to receptors in the heart and reduces activity or the autonomic nervous system
strengths of drug therapy
Soomro et al reviewed 17 studies of the use of SSRI’s with OCD and found them more effective than placebos in reducing the symptoms of OCD up to 3 months after treatment.
cheaper and easier to administer
weaknessesof drug therapy
side effects: nausea, headaches and insomnia
Ashton (1997) found Bz’s should only be used for 4 weeks
Ferguson (2005) found people taking SSRI’s are twice as likely to commit suicide
ethical issues: deception, physical harm and valid consent