Post-Mortem

• Iverson?


  examined deceased schizophrenic patients had higher levels of dopamine
• Causation?


  it is impossible to determine cause and effect there may be other extraneous variables.
• Extraneous variables?


  there are other factors that can affect behaviours such as: medication, age and length of time between death and examination
• strength?


  provides detailed anatomical structure and neurochemical aspects. can access areas such as the hypothalamus and hippocampus
• weakness?


  procedure is invasive. ethical issues with informed consent. e.g., patient HM who suffered from severe amnesia unable to provide fully informed consent