Abstract
Visually evoked potentials (VEPs) recorded from occipital scalp are extracted from the electroencephalogram (EEG) by signal averaging. Recording electrodes are placed on the occipital scalp overlying cortical visual projection areas. VEPs quantify the transmission of pattern or flash information via the optic nerves and pathways to the visual cortex of the brain and the processing in the occipital cortex. Dysfunction of the visual pathways or visual cortex in the brain affects the VEP. In patients who are mature enough to maintain fixation on a stimulating pattern, VEPs are usually recorded using a patterned stimulus displayed on a video monitor. If the patients are unable to maintain fixation, then a strobe or LED flash can be used to stimulate the eye for recording of flash VEPs with or without sedation/anesthesia. Multifocal VEPs (mfVEPs) allow recording VEPs corresponding to multiple retinal loci extending up to 60° of the central visual field.
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Youssofzadeh V, et al. Signal propagation in the human visual pathways: an effective connectivity analysis. J Neurosci. 2015;35(39):13501–10.
Towle VL, et al. Locating VEP equivalent dipoles in magnetic resonance images. Int J Neurosci. 1995;80(1–4):105–16.
Slotnick SD, et al. Using multi-stimulus VEP source localization to obtain a retinotopic map of human primary visual cortex. Clin Neurophysiol. 1999;110(10):1793–800.
Di Russo F, et al. Cortical sources of the early components of the visual evoked potential. Hum Brain Mapp. 2002;15(2):95–111.
Jasper HH. Report of committee on methods of clinical examination in electroencephalography. Electroencephalogr Clin Neurophysiol. 1958;10:370–5.
Odom JV, et al. ISCEV standard for clinical visual evoked potentials: (2016 update). Doc Ophthalmol. 2016;133(1):1–9.
Hoffmann MB, Straube S, Bach M. Pattern-onset stimulation boosts central multifocal VEP responses. J Vis. 2003;3(6):432–9.
Pasek TA, Huber JM. Hospitalized infants who hurt: a sweet solution with oral sucrose. Crit Care Nurse. 2012;32(1):61–9.
Yu M, Brown B, Edwards MH. Investigation of multifocal visual evoked potential in anisometropic and esotropic amblyopes. Invest Ophthalmol Vis Sci. 1998;39(11):2033–40.
Sutter EE. Noninvasive testing methods: multifocal electrophysiology. In: Dartt DA, editor. Encyclopedia of the eye. Oxford: Academic Press; 2010.
Klistorner AI, et al. Multifocal topographic visual evoked potential: improving objective detection of local visual field defects. Invest Ophthalmol Vis Sci. 1998;39(6):937–50.
Yu MZ, Brown B. Variation of topographic visually evoked potentials across the visual field. Ophthalmic Physiol Opt. 1997;17(1):25–31.
Hood DC, et al. Tracking the recovery of local optic nerve function after optic neuritis: a multifocal VEP study. Invest Ophthalmol Vis Sci. 2000;41(12):4032–8.
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Creel, D., Yu, M. (2019). Visually Evoked Potentials. In: Yu, M., Creel, D., Iannaccone, A. (eds) Handbook of Clinical Electrophysiology of Vision. Springer, Cham. https://doi.org/10.1007/978-3-030-30417-1_2
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DOI: https://doi.org/10.1007/978-3-030-30417-1_2
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