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Encyclopedia of Sciences and Religions pp 787–792Cite as

Evoked and Event-Related Potentials

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Related Terms

Averaged evoked potentials; Electrical potentials; Electrophysiological responses; Evoked responses of the brain; Scalp-recorded potentials; Sensory evoked potentials

Description

Evoked potentials (EPs) are small voltage fluctuations in the ongoing electroencephalogram (EEG) elicited by, and time-locked to, repeated occurrences of specific sensory, motor, or cognitive stimulus events. To extract average waveforms (also known as average “evoked potentials” of the brain) from the EEG, it is necessary to sum and average the results of multiple trials. EP morphology varies as a function of the sensory modality (which are a type of nerves and centers that carry stimuli from sense organs (or receptors) to the central nervous system and analyze their meaning. Different sensory modalities exist: visual, auditory, somatosensory, olfactory, etc.) of a physical stimulus; visual EPs (VEPs) are quite different from auditory (AEPs) and somatosensory (SEPs) EPs. In addition, amplitude...

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Author information

Authors and Affiliations

  1. Institute of Molecular Bioimaging and Physiology at Research Area 3 Milan (ARM3), National Research Council (CNR), Via Roberto Cozzi 53, Milan, 20125, Italy

    Dr. Alberto Zani

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  1. Dr. Alberto Zani
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Correspondence to Alberto Zani .

Editor information

Editors and Affiliations

  1. Department of Systematic Theology, Faculty of Theology, Copenhagen University, Copenhagen, Denmark

    Anne L. C. Runehov

  2. Pontificia Universita Antonianum, Roma, Italia

    Lluis Oviedo

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Zani, A. (2013). Evoked and Event-Related Potentials. In: Runehov, A.L.C., Oviedo, L. (eds) Encyclopedia of Sciences and Religions. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-8265-8_402

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  • DOI: https://doi.org/10.1007/978-1-4020-8265-8_402

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-1-4020-8264-1

  • Online ISBN: 978-1-4020-8265-8

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