localisation and hemispheric lateralisation

• S: clinical case study research demonstrates loss of certain functions if damage is caused to particular areas of the brain e.g. Brocas or Wernickes case studies and clive wearing, suggesting that these functions are localised and located in the areas damaged
• S: modern brain scanning techniques like fMRI support older research on language centres, showing activation in the regions previously associated when healthy participants perform language tasks
• L: the use of case studies are seen as unscientific especially in the brain research w/ damage often covering multiple regions previously associated when healthy participants perform language tasks