Impairment of color spatial vision in chronic alcoholism measured by psychophysical methods

CASTRO, Antonio José de Oliveira; RODRIGUES, Anderson Raiol; CÔRTES, Maria Izabel Tentes; SILVEIRA, Luiz Carlos de Lima

Artigo

Impairment of color spatial vision in chronic alcoholism measured by psychophysical methods

We used psychophysical tests to evaluate spatial vision in 15 subjects with a clinical history of chronic alcoholism by measuring luminance contrast sensitivity and color discrimination. The subjects were initially subjected to clinical inquiry and ophthalmological exam. Subjects then performed psyc...

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Autor principal:	CASTRO, Antonio José de Oliveira
Outros Autores:	RODRIGUES, Anderson Raiol, CÔRTES, Maria Izabel Tentes, SILVEIRA, Luiz Carlos de Lima
Grau:	Artigo
Idioma:	eng
Publicado em:	2014
Assuntos:	Visão espacial Visão de cores Sensibilidade ao contraste Discromatopsia Neurotoxicologia
Acesso em linha:	http://repositorio.ufpa.br/jspui/handle/2011/5420

id	ir-2011-5420
recordtype	dspace
spelling	ir-2011-54202017-10-16T15:20:50Z Impairment of color spatial vision in chronic alcoholism measured by psychophysical methods CASTRO, Antonio José de Oliveira RODRIGUES, Anderson Raiol CÔRTES, Maria Izabel Tentes SILVEIRA, Luiz Carlos de Lima Visão espacial Visão de cores Sensibilidade ao contraste Discromatopsia Neurotoxicologia We used psychophysical tests to evaluate spatial vision in 15 subjects with a clinical history of chronic alcoholism by measuring luminance contrast sensitivity and color discrimination. The subjects were initially subjected to clinical inquiry and ophthalmological exam. Subjects then performed psychophysical tests to measure spatial contrast thresholds using sine wave gratings of different spatial frequencies and contrasts and chromatic discrimination thresholds using the Mollon-Reffin test. For the analysis, subjects were divided into three groups according to age and compared with age-matched controls. Ten subjects had some degree of color vision loss, which was quite severe in seven cases. All subjects had normal luminance contrast sensitivity. The results suggest that color vision changes related to chronic alcoholism can occur in the absence of impairment of spatial luminance contrast sensitivity and thus is an important aspect to be considered in the clinical evaluation of this condition. 2014-08-08T19:59:26Z 2014-08-08T19:59:26Z 2009-12 Artigo de Periódico CASTRO, Antonio José de Oliveira et al. Impairment of color spatial vision in chronic alcoholism measured by psychophysical methods. Psychology & Neuroscience, Rio de Janeiro, v. 2, n. 2, p. 179-187, jul./dez. 2009. Disponível em: <http://www.scielo.br/pdf/pn/v2n2/a09v2n2.pdf>. Acesso em: 11 fev. 2014. <http://dx.doi.org/10.3922/j.psns.2009.2.009>. 1983-3288 http://repositorio.ufpa.br/jspui/handle/2011/5420 eng Acesso Aberto application/pdf
institution	Repositório Institucional - Universidade Federal do Pará
collection	RI-UFPA
language	eng
topic	Visão espacial Visão de cores Sensibilidade ao contraste Discromatopsia Neurotoxicologia
spellingShingle	Visão espacial Visão de cores Sensibilidade ao contraste Discromatopsia Neurotoxicologia CASTRO, Antonio José de Oliveira Impairment of color spatial vision in chronic alcoholism measured by psychophysical methods
topic_facet	Visão espacial Visão de cores Sensibilidade ao contraste Discromatopsia Neurotoxicologia
description	We used psychophysical tests to evaluate spatial vision in 15 subjects with a clinical history of chronic alcoholism by measuring luminance contrast sensitivity and color discrimination. The subjects were initially subjected to clinical inquiry and ophthalmological exam. Subjects then performed psychophysical tests to measure spatial contrast thresholds using sine wave gratings of different spatial frequencies and contrasts and chromatic discrimination thresholds using the Mollon-Reffin test. For the analysis, subjects were divided into three groups according to age and compared with age-matched controls. Ten subjects had some degree of color vision loss, which was quite severe in seven cases. All subjects had normal luminance contrast sensitivity. The results suggest that color vision changes related to chronic alcoholism can occur in the absence of impairment of spatial luminance contrast sensitivity and thus is an important aspect to be considered in the clinical evaluation of this condition.
format	Artigo
author	CASTRO, Antonio José de Oliveira
author2	RODRIGUES, Anderson Raiol CÔRTES, Maria Izabel Tentes SILVEIRA, Luiz Carlos de Lima
author2Str	RODRIGUES, Anderson Raiol CÔRTES, Maria Izabel Tentes SILVEIRA, Luiz Carlos de Lima
title	Impairment of color spatial vision in chronic alcoholism measured by psychophysical methods
title_short	Impairment of color spatial vision in chronic alcoholism measured by psychophysical methods
title_full	Impairment of color spatial vision in chronic alcoholism measured by psychophysical methods
title_fullStr	Impairment of color spatial vision in chronic alcoholism measured by psychophysical methods
title_full_unstemmed	Impairment of color spatial vision in chronic alcoholism measured by psychophysical methods
title_sort	impairment of color spatial vision in chronic alcoholism measured by psychophysical methods
publishDate	2014
url	http://repositorio.ufpa.br/jspui/handle/2011/5420
_version_	1832604599563845632
score	11.755432

Impairment of color spatial vision in chronic alcoholism measured by psychophysical methods

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