Lecture 1: Introduction to Models of Abnormality Flashcards
What 4 factors contribute to the empirical method to sutdy
1) description (classification and diagnosis)
2) causation (bio-psycho-social)
3) Treatment (effectiveness)
4) of Psychological ‘Abnormality’ => Mental Disorders
What does description entail
how reliable, valid. need to know which category ostensibly generalised symptoms fit into.
what is abnormal?
the 3-ds:
Deviant
Distress
Dysfunctional
what are the characteristics of the criteria for abnormality?
- neither on its own is sufficient/necessary
- ALWAYS reflects cultural values and norms
Deviant - is it unepected/rare, BUT positively valued deviance is possible
Distress - to self or others? BUT normal distress, manic phase of bipolar
Dysfunctional - maladaptive and interferes with life goals, aligned with social judgement, e.g. ADHD, BUT pathological independence, psychopaths may be functioning.
How does psychological abnormality exist?
On a continuum with normality
what type of model does DSM reflect
a biological/medical model
what are the different models of mental illness. what do they each suggest as cause and treatment?
1) supernatural
- cause is astrology, past lives
- treatment is exorcism prayer etc
2) biological
- internal physical problems
- treatment is bleeding, celibacy, diet, medication etc
3) psychological
- cause is beliefs, motivation etc
- treatment is ‘talking therapy’, psychotherapy
4) sociocultural
- cause is poverty, prejudice etc
- treatment is fix social ills
What did hippocrates do/suggest? What did galen?
1) suggested our experiences are governed by what goes on in our body. He also first proposed hysteria.
2) galen proposed psychotherapy
what occurred in the Middle ages?
- Europe: Catholic church took over authority
* Islamic civilisations upheld biological model
what happened in Europe 19-20th century?
•Europe 19-20th century: some mental illnesses
found to have physical causes (e.g. germs).
–Psychiatry became a legitimate field of medicine
What are 3 assumptions of the biological model?
–Assumes that psychological disorders can be
• Diagnosed similarly to physical illness
• Caused by biological disease processes
»structural brain abnormalities (Schizophrenia)
»neurochemical imbalance (Depression)
• best treated with biological agents: medication,
surgery, ECT
•Important criticisms and limitations of biological/medical model?
- Assumes that it is always caused by a biological process which can be identified.
- Not logical to argue backwards eg serotonin AD example
– Need to avoid extreme reductionism
• Certain complex psychological phenomena may be
impossible to explain at the neural/molecular level
– Need to avoid over-extrapolation from animal research
– Need to avoid assuming causation from treatment
– The medical model may not be applicable to
conceptualising and diagnosing ‘mental illness’ e.g.,
• Clear boundary between physical health and illness
– But: continuity between mental health and disorder