ERPs

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ERPs

Advantages

  • A very specific measurement of neural processes.
  • Excellent temporal resolution, especially when compared to fMRI.

Disadvantages

  • Lack of standardisation in methodology which makes it difficult to confirm findings.
  • Background noise and extraneous variables must be completely eliminated which may not always be easy to achieve.

Evaluation

Event related potentials (ERPs) are what is left when all extraneous brain activity from an EEG recording in filtered out. This is done using a statistical techniques, leaving only those responses that relate to the performance of a certain task. Research has revealed many different forms of ERP and how these are linked to cognitive processes (e.g. perception and attention).

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