Search Results - "Delahunt, Peter B."

The influence of perceptual training on working memory in older adults by Berry, Anne S, Zanto, Theodore P, Clapp, Wesley C, Hardy, Joseph L, Delahunt, Peter B, Mahncke, Henry W, Gazzaley, Adam

“…Normal aging is associated with a degradation of perceptual abilities and a decline in higher-level cognitive functions, notably working memory. To remediate…”
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The watercolor effect: Quantitative evidence for luminance-dependent mechanisms of long-range color assimilation by Devinck, Frédéric, Delahunt, Peter B., Hardy, Joseph L., Spillmann, Lothar, Werner, John S.

“…When a dark chromatic contour delineating a figure is flanked on the inside by a brighter chromatic contour, the brighter color will spread into the entire…”
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Cognitive Speed of Processing Training Delays Driving Cessation by Edwards, Jerri D., Delahunt, Peter B., Mahncke, Henry W.

“…Background As our population ages, interventions that can prolong safe driving for older adults will be increasingly important. Methods Data from two studies…”
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Color constancy under changes in reflected illumination by Delahunt, Peter B, Brainard, David H

“…Distinct physical processes can change the spectrum of the illumination that impinges on a surface. Here we consider two such changes. The first is a change in…”
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Senescence of spatial chromatic contrast sensitivity. I. Detection under conditions controlling for optical factors by Hardy, Joseph L, Delahunt, Peter B, Okajima, Katsunori, Werner, John S

“…Chromatic contrast thresholds for spatially varying patterns of various spatial frequencies (0.5, 1, 2, and 4 cycles per degree) were measured for ten older…”
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Senescence of spatial chromatic contrast sensitivity. II. Matching under natural viewing conditions by Delahunt, Peter B, Hardy, Joseph L, Okajima, Katsunori, Werner, John S

“…Age-related changes in the spatial chromatic contrast sensitivity function of detection, measured along S and L - M cone axes, were demonstrated in a companion…”
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Spatial Dependence of Color Assimilation by the Watercolor Effect by Devinck, Frédéric, Delahunt, Peter B, Hardy, Joseph L, Spillmann, Lothar, Werner, John S

“…Color assimilation with bichromatic contours was quantified for spatial extents ranging from von Bezold-type color assimilation to the watercolor effect. The…”
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Does human color constancy incorporate the statistical regularity of natural daylight? by Delahunt, Peter B, Brainard, David H

“…The chromaticities of natural daylights cluster around the blackbody locus. We investigated whether the mechanisms that mediate human color constancy embody…”
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Topography of the chromatic pattern-onset VEP by Gerth, Christina, Delahunt, Peter B, Crognale, Michael A, Werner, John S

“…The chromatic pattern-onset VEP has been used successfully as a sensitive and objective technique to determine congenital and acquired color vision deficiency…”
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The effect of senescence on orientation discrimination and mechanism tuning by Delahunt, Peter B, Hardy, Joseph L, Werner, John S

“…Accurately processing orientation information is a fundamental component of visual performance. Single-unit recordings have shown that the orientation tuning…”
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Bayesian model of human color constancy by Brainard, David H, Longère, Philippe, Delahunt, Peter B, Freeman, William T, Kraft, James M, Xiao, Bei

“…Vision is difficult because images are ambiguous about the structure of the world. For object color, the ambiguity arises because the same object reflects a…”
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Long-term renormalization of chromatic mechanisms following cataract surgery by Delahunt, Peter B, Webster, Michael A, Ma, Lei, Werner, John S

“…The optical density of the human crystalline lens progressively increases with age, the greatest increase in the visible spectrum being at short wavelengths…”
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Chromatic-spatial vision of the aging eye by WERNER, John S, DELAHUNT, Peter B, HARDY, Joseph L

“…The human visual system undergoes continuous anatomical, physiological and functional changes throughout the life span. There is also continuous change in the…”
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Senescent changes in photopic spatial summation by Malania, Maka, Devinck, Frédéric, Knoblauch, Kenneth, Delahunt, Peter B, Hardy, Joseph L, Werner, John S

“…Previous studies have demonstrated an inverse relation between the size of the complete spatial summation area and ganglion cell density. We hypothesized that…”
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Illusory spreading of watercolor by Devinck, Frédéric, Hardy, Joseph L, Delahunt, Peter B, Spillmann, Lothar, Werner, John S

“…The watercolor effect (WCE) is a phenomenon of long-range color assimilation occurring when a dark chromatic contour delineating a figure is flanked on the…”
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Cone-mediated multifocal electroretinogram in age-related macular degeneration: progression over a long-term follow-up by Gerth, Christina, Delahunt, Peter B, Alam, Suhail, Morse, Lawrence S, Werner, John S

“…To evaluate the progression of change in the cone-driven multifocal electroretinogram (mfERG) responses in patients previously identified as having high-risk,…”
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Assessment of multifocal electroretinogram abnormalities and their relation to morphologic characteristics in patients with large drusen by Gerth, Christina, Hauser, David, Delahunt, Peter B, Morse, Lawrence S, Werner, John S

“…To determine the extent of functional changes in the first-order kernel multifocal electroretinogram (mfERG) responses in patients with large drusen by means…”
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Corrigendum to “Control of chromatic adaptation: Signals from separate cone classes interact” [Vision Research 40 (2000) 2885–2903] by Delahunt, Peter B., Brainard, David H.

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Perceptual assessment of demosaicing algorithm performance by Longere, P., Xuemei Zhang, Delahunt, P.B., Brainard, D.H.

“…Demosaicing is an important part of the image-processing chain for many digital color cameras. The demosaicing operation converts a raw image acquired with a…”
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Comparison of color constancy with respect to illumination changes induced by distinct physical processes by Delahunt, P. B., Brainard, D. H.

“…Abstract only…”
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