Is Visual Snow a Thalamo-Cortical Dysrhythmia of the Visual Processing System - A Magnetoencephalogram Study (Slides)

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Identifier 20200310_nanos_sciplatform2_07-slides
Title Is Visual Snow a Thalamo-Cortical Dysrhythmia of the Visual Processing System - A Magnetoencephalogram Study (Slides)
Creator Jenny L. Hepschke, Andrew Etchell, Robert Seymour, Paul Sowman, Clare Fraser
Subject Higher Visual Cortical Functions, Higher Visual Functions
Description Visual snow (VS) has been described as a unique clinical entity, which may occur with increased neuronal excitability. (1) Sensory information processing relies on the interactions between thethalamus and cortex. When hyperexcitability affects cortical networks, it can lead to thalamocortical dysrhythmias, resulting in tinnitus. (2) We hypothesize that VS is the visual manifestation ofthalamocortical dysrhythmia. Visual cortex gamma oscillations reflect cognitive processing and alpha oscillations are associatedwith thalamically generated pulses of cortical inhibition, altering information processing. (3) Thisoscillatory network activity is a characteristic property of the thalamocortical system.Therefore, we used Magnetocephalography (MEG) to record the visual cortex oscillatory dynamics,as a measure of possible thalamocortical dysrhythmia in VS patients and controls.
Relation is Part of NANOS Annual Meeting 2020: Scientific Platform Session II
Contributor Primary Jenny L. Hepschke, MBBS, BSc(Med), PhD
Contributor Secondary Andrew Etchell, Robert Seymour, Paul Sowman, Clare Fraser
Publisher Spencer S. Eccles Health Sciences Library, University of Utah
Date 2020-03
Format application/pdf
Source 2020 North American Neuro-Ophthalmology Society Annual Meeting
Rights Management Copyright 2020. For further information regarding the rights to this collection, please visit: https://NOVEL.utah.edu/about/copyright
Holding Institution North American Neuro-Ophthalmology Association. NANOS Executive Office 5841 Cedar Lake Road, Suite 204, Minneapolis, MN 55416
Collection Neuro-ophthalmology Virtual Education Library: NOVEL http://NOVEL.utah.edu
Language eng
ARK ark:/87278/s6z94n88
Setname ehsl_novel_nam
Date Created 2020-04-16
Date Modified 2020-05-20
ID 1541539
Reference URL https://collections.lib.utah.edu/ark:/87278/s6z94n88
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