Imperial College London
Alternate

ProfessorAdolfoBronstein

Faculty of Medicine, Department of Brain Sciences

Emeritus Clinical Professor Head of Neuro-otology Unit
 
 
 
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Contact

 

+44 (0)20 3313 5525a.bronstein

 
 
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Assistant

 

Miss Lorna Stevenson +44 (0)20 3313 5525

 
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Location

 

10 L15bLab BlockCharing Cross Campus

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Summary

 

Publications

Citation

BibTex format

@article{Minakaran:2019:10.1212/WNL.0000000000007033,
author = {Minakaran, N and Soorma, T and Bronstein, AM and Plant, GT},
doi = {10.1212/WNL.0000000000007033},
journal = {Neurology},
pages = {E1072--E1075},
title = {Charles Bonnet syndrome and periodic alternating nystagmus Moving visual hallucinations},
url = {http://dx.doi.org/10.1212/WNL.0000000000007033},
volume = {92},
year = {2019}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - ObjectiveTo describe and discuss potential mechanisms for modulation of visual hallucinations by nystagmus.MethodsWe present 2 patients with coexistent Charles Bonnet syndrome and periodic alternating nystagmus in the context of acquired visual loss.ResultsThe combination has given rise to a rare phenomenon: visual hallucinations that move in a manner governed by the nystagmus, specifically by the direction and velocity of the slow phase. The perceived modulation of movement is selective for a surface in one case and a landscape in the other but not present for hallucinated individual objects and people separate from the hallucinated background visual scene.ConclusionsThe collision of Charles Bonnet syndrome and periodic alternating nystagmus in these 2 patients has demonstrated that some visual hallucinations can be modulated by, or collaterally with, ocular movements. We propose 2 potential mechanisms based on ocular proprioceptive input from extraocular muscles projecting to either extrastriate processing of visual scene, or to higher-order visual cortical areas involved in analysis of motion signals across the whole visual field.
AU  - Minakaran,N
AU  - Soorma,T
AU  - Bronstein,AM
AU  - Plant,GT
DO  - 10.1212/WNL.0000000000007033
EP  - 1075
PY  - 2019///
SN  - 1526-632X
SP  - 1072
TI  - Charles Bonnet syndrome and periodic alternating nystagmus Moving visual hallucinations
T2  - Neurology
UR  - http://dx.doi.org/10.1212/WNL.0000000000007033
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000463252900014&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - http://hdl.handle.net/10044/1/70010
VL  - 92
ER  -
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