The visual system adjusts to stabilize object color appearance against changes in illumination. This proposal consist of experiments designed to study the adjustments, which is often called color consistency. Understanding color consistency is necessary for a complete theory of human color vision. In addition, color consistency is an example of a larger class of perceptual constancies (e.g. size consistency and shape consistency) that together allow us to perceive a stable physical world. As such, a detailed characterization of the color system may provide insights that generalize to these other perceptual systems. The first set of experiments is designed to develop computer display technology for studying color constancy. The experiments will compare performance for natural viewing with that for a variety of display conditions. By titrating the richness of the displays, we will determine what factors are important for color constancy and how well they can be stimulated. The second set of experiments will exploit the display technology to characterize human color constancy. Particular emphasis will be placed on determining how well the visual system can separate illuminant and object spectra and on relating human performance to computational models.
| Radonjic, Ana; Ding, Xiaomao; Krieger, Avery et al. (2018) Illumination discrimination in the absence of a fixed surface-reflectance layout. J Vis 18:11 |
| Chadwick, A C; Heywood, C A; Smithson, H E et al. (2017) Translucence perception is not dependent on cortical areas critical for processing colour or texture. Neuropsychologia : |
| Spitschan, Manuel; Lucas, Robert J; Brown, Timothy M (2017) Chromatic clocks: Color opponency in non-image-forming visual function. Neurosci Biobehav Rev 78:24-33 |
| Radonjic, Ana; Pearce, Bradley; Aston, Stacey et al. (2016) Illumination discrimination in real and simulated scenes. J Vis 16:2 |
| Emerit, Michel Boris; Baranowski, Camille; Diaz, Jorge et al. (2016) A New Mechanism of Receptor Targeting by Interaction between Two Classes of Ligand-Gated Ion Channels. J Neurosci 36:1456-70 |
| Spitschan, Manuel; Datta, Ritobrato; Stern, Andrew M et al. (2016) Human Visual Cortex Responses to Rapid Cone and Melanopsin-Directed Flicker. J Neurosci 36:1471-82 |
| Spitschan, Manuel; Aguirre, Geoffrey K; Brainard, David H et al. (2016) Variation of outdoor illumination as a function of solar elevation and light pollution. Sci Rep 6:26756 |
| Radonji?, Ana; Brainard, David H (2016) The nature of instructional effects in color constancy. J Exp Psychol Hum Percept Perform 42:847-65 |
| Brainard, David H; Hurlbert, Anya C (2015) Colour Vision: Understanding #TheDress. Curr Biol 25:R551-4 |
| Lindsey, Delwin T; Brown, Angela M; Brainard, David H et al. (2015) Hunter-Gatherer Color Naming Provides New Insight into the Evolution of Color Terms. Curr Biol 25:2441-6 |
Showing the most recent 10 out of 45 publications
