Falkai et al (1988)-
Autopsies found that
people with
schizophrenia have a
larger number of
dopamine receptors
Conflicting evidence
Depatie and Lal (2001) found
that apomorphine (agonist drug)
does not induce psychotic
symptoms and does not worsen
pre existing symptoms
Opposing theories
Genetic hypothesis,
social causation
Usefulness
Reductionist as it relies on
biological explanations
and overlooks the
environment. However,
has led to the
development of drugs that
have less side effects.
Testability
Highly testable as objective,
empirical and produces
scientific evidence. Uses
advanced medical equipment
such as fMRI. However,
doesn't establish cause and
effects.