event-related potentials (ERP)

• ERP

  • EEG data crude + overly general measure of brain activity
  • averaging technique used to isolate responses - all extraneous brain activity from original EEG filtered out, only response needed left
  • what remains is event-related potentials - types of brainwaves triggered by events
  • research revealed different forms and how they relate to cognitive processes
• ERP evaluations

  • S:limitations of EEG party addresses, specific, excellent em portal resolution, frequently used to measure cognitive functions + deficits (allocation of attention resources + maintenance of working memory)
  • W: lack of standardisation between different research studies - difficult to conform findings, background noise + extraneous material must be eliminated to establish pure data (not easy to achieve)