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Prog Neuropsychopharmacol Biol Psychiatry. 2014 Jan 3;48:129-34. doi: 10.1016/j.pnpbp.2013.09.020. Epub 2013 Oct 10.

The brain through the retina: the flash electroretinogram as a tool to investigate psychiatric disorders.

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1
Centre de Recherche de l'Institut Universitaire en Santé Mentale de Québec, Quebec City, Quebec, Canada; Department of Ophthalmology, Otorhinolaryngology and Cervico-Facial Surgery, Faculty of Medicine, Université Laval, Quebec City, Quebec, Canada; Department of Psychiatry and Neuroscience, Faculty of Medicine, Université Laval, Quebec City, Quebec, Canada.

Abstract

Investigating the living brain remains one of the major obstacles in psychiatry research in order to better understand the biological underpinning of brain disorders. Novel approaches are needed to study brain functions indirectly. Since it is part of the central nervous system, retinal functions as measured with the flash electroretinogram (ERG) may reflect the central dysfunctions reported in psychiatric disorders. This review describes the flash ERG anomalies reported in patients with psychiatric disorders such as seasonal affective disorder, schizophrenia, autism spectrum disorder and drug addiction and discusses how changes in retinal functions might be used as biomarkers for psychiatric disorder as well as a potential aid to diagnosis in psychiatry.

KEYWORDS:

ASD; BD; Biomarker; ERG; Electroretinogram; HR; HVA; LRF; Psychiatric disorders; Retina; SAD; SZ; autism spectrum disorder; bipolar disorder; electroretinogram; high risk; homovanillic acid; luminance response function; schizophrenia; seasonal affective disorder

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PMID:
24121062
DOI:
10.1016/j.pnpbp.2013.09.020
[Indexed for MEDLINE]
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