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dc.contributor.authorLinhares, João M. M.por
dc.contributor.authorJoão, Catarina Alexandra Rodriguespor
dc.contributor.authorSilva, Eva D. G.por
dc.contributor.authorde Almeida, Vasco M. N.por
dc.contributor.authorSantos, Jorge L. A.por
dc.contributor.authorÁlvaro, Leticiapor
dc.contributor.authorNascimento, Sérgio M. C.por
dc.identifier.citationLinhares, J. M. M., Joao, C. A. R., Silva, E. D. G., de Almeida, V. M. N., Santos, J. L. A., Alvaro, L., & Nascimento, S. M. C. (2016). Assessing the effects of dynamic luminance contrast noise masking on a color discrimination task. Journal of the Optical Society of America a-Optics Image Science and Vision, 33(3), A178-A183. doi: 10.1364/josaa.33.00a178por
dc.description.abstractThe aim of this work was to assess the influence of dynamic luminance contrast noise masking (LCNM) on color discrimination for color normal and anomalous trichromats. The stimulus was a colored target on a background presented on a calibrated CRT display. In the static LCNM condition, the background and target consisted of packed circles with variable size and static random luminance. In the dynamic LCNM condition, a 10 Hz square luminance signal was added to each circle. The phase of this signal was randomized across circles. Discrimination thresholds were estimated along 20 hue directions concurrent at the color of the background. Six observers with normal colorvision, six deuter anomalous observers, and three prot anomalous observers performed the test in both conditions. With dynamic LCNM, thresholds were significantly lower for anomalous observers but not for normal observers, suggesting a facilitation effect of the masking for anomalous trichromats.por
dc.description.sponsorshipCentro de Física of Minho University; Departamento de Física of University of Beira Interior; FEDER through the COMPETE Program; Foundation for Science and Technology (FCT) (PTDC/MHC-PCN/4731/2012).por
dc.description.sponsorshipThis work was supported by the Departamento de Física of University of Beira Interior, by the Centro de Física of Minho University, by FEDER through the COMPETE Program, and by the Portuguese Foundation for Science and Technology (FCT) in the framework of the project PTDC/MHC-PCN/4731/2012.por
dc.publisherOptical Society of Americapor
dc.titleAssessing the effects of dynamic luminance contrast noise masking on a color discrimination taskpor
oaire.citationTitleJournal of the Optical Society of America Apor
dc.subject.fosCiências Naturais::Ciências Físicaspor
dc.subject.wosScience & Technologypor
sdum.journalJournal of the Optical Society of America A: Optics and Image Science, and Visionpor
Appears in Collections:CDF - OCV - Artigos/Papers (with refereeing)

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