Event-related potential

A waveform showing several ERP components, including the N100 (labeled N1) and P300 (labeled P3). The ERP is plotted with negative voltages upward, a common, but not universal, practice in ERP research

An event-related potential (ERP) is the measured brain response that is the direct result of a specific sensory, cognitive, or motor event.^[1] More formally, it is any stereotyped electrophysiological response to a stimulus. The study of the brain in this way provides a noninvasive means of evaluating brain functioning.

ERPs are measured by means of electroencephalography (EEG). The magnetoencephalography (MEG) equivalent of ERP is the ERF, or event-related field.^[2] Evoked potentials and induced potentials are subtypes of ERPs.

^ Luck SJ (2005). An Introduction to the Event-Related Potential Technique. The MIT Press. ISBN 978-0-262-12277-1.^{[page needed]}
^ Brown CM, Hagoort P (1999). "The cognitive neuroscience of language". In Brown CM, Hagoort P (eds.). The Neurocognition of Language. New York: Oxford University Press. p. 6.

[Luck-1] Luck SJ (2005). An Introduction to the Event-Related Potential Technique. The MIT Press. ISBN 978-0-262-12277-1.^{[page needed]}

[2] Brown CM, Hagoort P (1999). "The cognitive neuroscience of language". In Brown CM, Hagoort P (eds.). The Neurocognition of Language. New York: Oxford University Press. p. 6.

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