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Electroretinographic artifacts on EEG in a critically ill patient.
Epileptic Disord
August 2024
Department of Neurology, Washington University School of Medicine, St. Louis, Missouri, USA.
Purpose: Mesopic flash electroretinography (fERG) as a tool to identify N-methyl-d-aspartate receptor (NMDAR) hypofunction in subjects with schizophrenia shows great potential. We report the first fERG study in a genetic mouse model of schizophrenia characterized by NMDAR hypofunction from gene silencing of serine racemase (SR) expression (SR-/-), an established risk gene for schizophrenia. We analyzed fERG parameters under various background light adaptations to determine the most significant variables to allow for early identification of people at risk for schizophrenia, prior to onset of psychosis.
View Article and Find Full Text PDFTeaching NeuroImages: Electroretinographic artifacts in EEG.
Neurology
October 2019
From the Department of Neurology, National Neuroscience Institute, Singapore.
Studying the Retinal Source of Photophobia by Facial Electroretinography.
Optom Vis Sci
April 2017
*DSc †PhD Smith-Kettlewell Eye Research Institute, San Francisco, California (CWT, LTL); and Centre for Applied Vision Research, Division of Optometry and Vision Science, City University, London, United Kingdom (CWT).
Purpose: Photophobia is a debilitating clinical condition that disrupts the ability to use vision for everyday tasks in bright lighting conditions. The goal of the study is to develop a methodology to study the neural basis of photophobia and the contribution of the melanopic pathway to its etiology with differential chromatic responses by means of standard electroencephalographic recording equipment.
Methods: We introduce and validate the approach of recording wavelength-specific electroretinographic (ERG) responses from the face electrodes of the high-density whole-head electroencephalography recording system under light-adapted conditions.
Electroretinographic responses in epileptic children treated with vigabatrin.
J Child Neurol
June 2014
Department of Pediatric Neurology, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Vigabatrin is an antiepileptic drug that results in higher gamma-aminobutyrate levels in the brain and retina. Vigabatrin-induced visual field defects are usually asymptomatic and only detectable by perimetry. Further, perimetry requires good cooperation, and children aged under 10 years cannot do it.
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