Abnormal
behaviours result
from physical
problems and
should be treated
medically
Infection
Mental illness has
been linked to germs
and bacteria
Genetic factors
People may inherit
predispositions to
certain illnesses
through genes which
pass from generation
to generation
Biochemistry
Chemical
interaction in the
body
Neuroanatomy
Physical
differences in the
nervous system
Evaluation
Positives
Nota:
-Based on well established science
- Can help provide treatments
- Removes blame from patient
Negatives
Nota:
- Is mental illness the same as physical illness?
- Ethical issues with drugs
- Cause or effect?
- Ignores people's experiences
- Puts pressure on family
Behavioural
Model of
Abnormalty
Abnormality is based on
the development or learning
of behaviour patterns
Classical conditioning
Operant conditioning
Social learning theory
Evaluation
Positives
Nota:
- Gives the patient the power to change
- Patient is not seen as the victim of illness
- Successful at treating some phobias
- Easy to test experimentally
Negatives
Nota:
-The focus is on symptoms instead of underlying cause
- Minimises the role of biological and cognitive factors
- Treatments are accused of being unethical
- Treatments are for the benefit of society rather than the individual
- Classical conditioning doesn't explain why people develop phobias when they cannot identify an event in their past that has caused it
Psychodynamic
Model of
Abnormality
Conflict between id,
ego and superego
Psychosexual development
Old Age Pensioners
Like Greens
Freud
Evaluation
Positives
Nota:
- It highlights psychology in mental illness
- Identifies childhood experiences as a factor
- Reduces blame from person, it can't be their fault if it is unconscious
Negatives
Nota:
-Over emphasis on past not present
- Model is non scientific since it cannot be falsified
-Ignores culture and social factors
- Assumes behaviour is defined by gender and sex
-False memory syndrome: recovering memories that are not true
Cognitive Model of
Abnormality
Irrational thinking
Cognitive triad
ABC Model
Evaluation
Positives
Nota:
-Model focusses on people's experiences and feelings
- Gives the person the power to change
Negatives
Nota:
-Limited to certain mental disorders
- Ignores other possible causes
- Cause and effect
- Ethics, is it right to tell someone their belief system is faulty?
-Puts blame on the person
Behavioural
Treatments
Systematic Desensitisaiton
The two responses of
fear and relaxation are
incompatible, therefore
you can't be relaxed
and still fearful.
Evaluation
Positives
Nota:
-Quick and requires little effort from the patient
- May be the only option for certain groups of people (learning difficulties)
- Research has found that SD is successful in a range of anxiety disorders
- SD has been found to be highly effective
- McGrath et al: 75% of patients with phobias respond to SD
- Capafons et al reported that when used with aerophobics, those who had undergone SD reported lower levels of fear compared to a control group
Negatives
Nota:
- Some patients experience 'Symptom Substitution'
- SD may seem to resolve the problem, but suppressing symptoms may result in other symptoms presenting themselves
-SD has been found to have reduced effectiveness for certain phobias
- Ohman et al: SD may not be effective in treating some phobias related to evoluntary survival components (heights, dark, dangerous animals)
- Ethical issues
-May be psychologically distressing
Biological
Treatments
Chemotherapy
Electro convulsive
therapy (ECT)
Evaluation
Postives
Nota:
- Supporters of ECT claim it can change lives and eradicate problems that other treatments have not
- Comer: 60-70% of ECT patients imporved after their treatment
Negatives
Nota:
-Sham ECT appears to be effective at treating the conditions too
-There are some serious side effects to ECT (phsycial: impaired memory, cardiovascular changes and headaches- Datto) (Psychological: The DOH report found that among those receiving ECT within the last 2 years, 30% reported that it had resulted in permanent fear and anxiety)
- Counter evidence of Comer found that 84% relapsed within 6 months of ECT
Psychodynamic
Treatments
Psychoanalysis
Evaluation
Positives
Nota:
- Bergin: He analysed the sata from 10,000 patient histories and estimated 80% benefited from psychoanalysis compared to ecletic therapies
- Tschuchke et al: More than 450 patiens were included in the study, he found that the longer the treatment, the better the outcomes. Supporting the prolonged time period for ppsychoanalysis
Negatives
Nota:
- The whole theory is based Freud's theory, what if it is wrong?
- Eysenck argues that Freud's theory is countered by spontaneous remission and placebo treatment, that it is not useful to base therapies on it (some people suddenly recover without years of therapy. Others who spend the same amount of time talking to someone without any analysis going on recover seem to recover to the same levels)
- It may lead to false memories
- There are ethical issues, the therapy may bring up potentially distressing material which can affect the individual and the whole family
Cognitive
Treatments
REBT
ABCDEF
Evaluation
Positives
Nota:
- Engles conducted a meta analysis in 1993 and concluded that REBT is an effective treatment for a number of disorders including OCD and social phobia
- It is useful in a variety of settings so anybody can benefit
- There is evidence to suggest that the long term effects of REBT are more successful than drugs because they fix the cause
- More cost effective and less time consuming than psychoanalysis
- There are no side effects unlike drugs treament
- Can be used in conjunction with other treatments like drug treatment and has been found to decrease the chances of relapse
Negatives
Nota:
- Even though the person has been helped to approach problems rationally, once they leave treatment they re-enter the original environments that caused the problem
- Only works if the patient is willing
- It is unethical to tell someone that their belief systems are faulty. Especially when these principles are linked to a fundamental religious faith
- Evaluation is difficult as there is no object measure of improvement