ERP:

• Strength:

  These bring much more specificity to the measurement of neural processes than could ever be achieved using raw EEG data.

  As ERPs are derived from EEG measurements, they have excellent temporal resolution, especially when compared to neuroimaging techniques such as FMRI.

  This means that ERPs are frequently used to measure cognitive functions and deficits such as the allocation of attentional resources and the maintenance of working memory.
• Limitations:

  Critics have pointed to a lack of standardisation in ERP methodology between different research studies which makes it difficult to confirm findings.

  A further issue is that, in order to establish pure data in ERP studies, background 'noise' and extraneous material must be completely eliminated.

  This is a problem because it may not always be easy to achieve.