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Intracranial Event-Related Potentials 

Intracranial Event-Related Potentials
Chapter:
Intracranial Event-Related Potentials
Author(s):

Milan Brázdil

, Pavel Jurák

, and Ivan Rektor

DOI:
10.1093/med/9780198714668.003.0031
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date: 22 August 2019

Human intracranial event-related potentials (ERPs) represent an extremely useful tool for investigating many higher-level brain functions. Direct measurements from cortical/subcortical structures and outstanding temporal resolution are the main advantages of this method, for which it is currently viewed as an important complement to modern neuroimaging techniques in the elucidation of cognitive and affective mechanisms and their neural substrates. In this chapter, basic methodological aspects of intracranial ERP recordings are described and the main invasively investigated components are reviewed. Two subgroups of ERPs are discussed in greater detail: the response-related Bereitschaftspotential and stimulus-related cognitive P3 potentials. Other brain functions less frequently investigated using intracranial recordings and briefly reviewed in this chapter are language, memory, emotions, error processing, and empathy. The clinical use of intracranial ERPs in the presurgical evaluation of individual patients is promising, but awaits further approval.

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