Artigo de periodico

Mercury toxicity in the Amazon: contrast sensitivity and color discrimination of subjects exposed to mercury (2007)

• Authors:
  • Rodrigues, A.R
  • Souza, C.R.B
  • Braga, A.M
  • Rodrigues, P.S.S
  • Silveira, A.T
  • Damin, E.T.B
  • Côrtes, M.I.T
  • Castro, A.J.O
  • Mello, G.A
  • Vieira, J.L.F - Universidade Federal do Pará (UFPA)
  • Pinheiro, M.C.N - Universidade Federal do Pará (UFPA)
  • Ventura, Dora Selma Fix
  • Silveira, L.C.L - Universidade Federal do Pará (UFPA)
• Autor USP: VENTURA, DORA SELMA FIX - IP
• Unidade: IP
• DOI: 10.1590/s0100-879x2007000300018
• Subjects: MERCÚRIO (ELEMENTO QUÍMICO); VISÃO; PERCEPÇÃO DE COR; CONTRASTE; TOXICOLOGIA OCUPACIONAL; AMAZONENSES
• Language: Inglês
• Abstract: We measured visual performance in achromatic and chromatic spatial tasks of mercury-exposed subjects and compared the results with norms obtained from healthy individuals of similar age. Data were obtained for a group of 28 mercury-exposed subjects, comprising 20 Amazonian gold miners, 2 inhabitants of Amazonian riverside communities, and 6 laboratory technicians, who asked for medical care. Statistical norms were generated by testing healthy control subjects divided into three age groups. The performance of a substantial proportion of the mercury-exposed subjects was below the norms in all of these tasks. Eleven of 20 subjects (55%) performed below the norms in the achromatic contrast sensitivity task. The mercury-exposed subjects also had lower red-green contrast sensitivity deficits at all tested spatial frequencies (9/11 subjects; 81%). Three gold miners and 1 riverine (4/19 subjects, 21%) performed worse than normal subjects making more mistakes in the color arrangement test. Five of 10 subjects tested (50%), comprising 2 gold miners, 2 technicians, and 1 riverine, performed worse than normal in the color discrimination test, having areas of one or more MacAdam ellipse larger than normal subjects and high color discrimination thresholds at least in one color locus. These data indicate that psychophysical assessment can be used to quantify the degree of visual impairment of mercury-exposed subjects. They also suggest that some spatial tests suchas the measurement of red-green chromatic contrast are sufficiently sensitive to detect visual dysfunction caused by mercury toxicity
• Imprenta:
  • Publisher place: Ribeirão Preto, SP
  • Date published: 2007
• Source:
  • Título do periódico: Brazilian Journal of Medical and Biological Research
  • Volume/Número/Paginação/Ano: v. 40, n. 3, p. 415-424, 2007

Informações sobre o DOI: 10.1590/s0100-879x2007000300018 (Fonte: oaDOI API)
• Este periódico é de acesso aberto
• Este artigo é de acesso aberto
• URL de acesso aberto
• Cor do Acesso Aberto: gold
• Licença: cc-by

---

How to cite

A citação é gerada automaticamente e pode não estar totalmente de acordo com as normas

• ABNT

  RODRIGUES, A.R et al. Mercury toxicity in the Amazon: contrast sensitivity and color discrimination of subjects exposed to mercury. Brazilian Journal of Medical and Biological Research, v. 40, n. 3, p. 415-424, 2007Tradução . . Disponível em: https://doi.org/10.1590/s0100-879x2007000300018. Acesso em: 23 abr. 2024.

• APA

  Rodrigues, A. R., Souza, C. R. B., Braga, A. M., Rodrigues, P. S. S., Silveira, A. T., Damin, E. T. B., et al. (2007). Mercury toxicity in the Amazon: contrast sensitivity and color discrimination of subjects exposed to mercury. Brazilian Journal of Medical and Biological Research, 40( 3), 415-424. doi:10.1590/s0100-879x2007000300018

• NLM

  Rodrigues AR, Souza CRB, Braga AM, Rodrigues PSS, Silveira AT, Damin ETB, Côrtes MIT, Castro AJO, Mello GA, Vieira JLF, Pinheiro MCN, Ventura DSF, Silveira LCL. Mercury toxicity in the Amazon: contrast sensitivity and color discrimination of subjects exposed to mercury [Internet]. Brazilian Journal of Medical and Biological Research. 2007 ; 40( 3): 415-424.[citado 2024 abr. 23 ] Available from: https://doi.org/10.1590/s0100-879x2007000300018

• Vancouver

  Rodrigues AR, Souza CRB, Braga AM, Rodrigues PSS, Silveira AT, Damin ETB, Côrtes MIT, Castro AJO, Mello GA, Vieira JLF, Pinheiro MCN, Ventura DSF, Silveira LCL. Mercury toxicity in the Amazon: contrast sensitivity and color discrimination of subjects exposed to mercury [Internet]. Brazilian Journal of Medical and Biological Research. 2007 ; 40( 3): 415-424.[citado 2024 abr. 23 ] Available from: https://doi.org/10.1590/s0100-879x2007000300018

Últimas obras dos mesmos autores vinculados com a USP cadastradas na BDPI:

• Situação das neurociências no Brasil: neurociências clínicas: disciplinas básicas
• Identificação de células bipolares da retina por imunoreatividade com proteína cinase C em peixe tropical (Hoplias malabaricus). Identificação de células bipolares da retina por imunoreatividade com proteína cinase C em um peixe tropical (Hoplias malabaricus)
• Selective loss of color discrimination in carriers of leber's hereditary optic neuropathy from a giant brazilian pedigree
• Contribuição dos sistemas on e off na sensibilidade ao contraste
• Tempo de diabetes prejudica a visão de cores
• Method to Indentify Nonsignificant Responses at Multifocal Electroretinogram Recordings: technical Note
• Toxicidade mercurial: avaliação do sistema visual em indivíduos expostos a níveis tóxicos de mercúrio
• Cone oil droplets in the young turtle retina
• Primeiras respostas a luz ultravioleta em celulas da retina de tartaruga
• Acuidade de resolucao e erro refrativo em criancas ate 3 anos de idade