First 272 words of the document:
`Outline and evaluate the Biological Approach to psychopathology' 
Biological approach is the most dominant approach used to explain abnormality. It studies the
relationship between behaviour and the body's various physiological systems with the most
important being the brain.
Biological approach assumes abnormality is caused by physical factors- genes, biochemistry,
neuro-anatomy and viral infection.
In terms of genes- being abnormal may be the result of genetic inheritance-someone in your
Biochemistry- people with depression are more likely to have low levels of serotonin and
people with schizophrenia have low dopamine levels.
The brain [neuro anatomy] - schizophrenia patients have enlarged ventricles in the brain, this
indicates the shrinkage of brain tissue.
Viral infection- if the infection is not treated in time, it could lead to serious mental problems.
The biological approach is valid-uses lab experiments and correlational studies. Lab studies
have high control but do tend to lack ecological validity. Correlational studies show a positive
and negative relationship between two variables, but do not show cause and effect.
Have both strengths and weaknesses- brain scanning and modern techniques allow the
patient to see. There is also evidence- research evidence in the form of twin studies
concordance rates of MZ and DZ twins. Drug treatment which solely focuses on the biological
symptoms of mental disorders-very effective.
However: this approach is very REDUCTIONIST! Doesn't allow different factors and brings
them down to just biology. Also hard to decide that whether this is a cause or an effect.