localisation

• patient tan - only had the ablility to say tan- brooca's aphasia

  therefore cannot put together sentences

  brocas area is responsible for speech production
• wernikes aphasia- problems with language compreshension but can speak but not understand others speaking
• theory of localisation- there are specific areas of the cerebral cortex responsible for certain physical and psychological fucntions
• strength- evidence from neurosurgery

  • certain areas have been linked to mental disorders
  • last resort is surgery, OCD surgery involves isolating an area of the brain which is linked to OCD,
  • surgery on 44 people 30% met criteria and 14% partial response for surgery undergone a cingulotomy
  • successful procedure suggests mental disorders are localised
• strength- brain scans

  • Petersen et al. used scans to show how wenickes area was active during a listening excerise, broca's area was active during a reading task.