On Seeing Reddish Green and Yellowish Blue

  title={On Seeing Reddish Green and Yellowish Blue},
  author={Hewitt D. Crane and Thomas P. Piantanida},
  pages={1078 - 1080}
Four color names—red, yellow, green, and blue—can be used singly or combined in pairs to describe all other colors. Orange, for example, can be described as a reddish yellow, cyan as a bluish green, and purple as a reddish blue. Some dyadic color names (such as reddish green and bluish yellow) describe colors that are not normally realizable. By stabilizing the retinal image of the boundary between a pair of red and green stripes (or a pair of yellow and blue stripes) but not their outer edges… 
Perceiving opponent hues in color induction displays.
It is demonstrated on two distinct stimulus sets, one formed using a chromatic grid and neon spreading and the other based on solid colored regions, that the chromatic contrast of a purple surround over a red figure results in perception of 'forbidden' reddish-green colors.
Color in visual search
Perception of forbidden colors in retinally stabilized equiluminant images: an indication of softwired cortical color opponency?
It is found that when colors were equiluminant, subjects saw reddish greens, bluish yellows, or a multistable spatial color exchange (an entirely novel perceptual phenomena); when the colors were nonequiluminants, subjectssaw spurious pattern formation.
The Trajectory of Color
According to a consensus of psycho-physiological and philosophical theories, color sensations (or qualia) are generated in a cerebral space fed from photon-photoreceptor interaction (producing
Are there nontrivial constraints on colour categorization?
It is concluded that psychophysics and neurophysiology fail to set nontrivial constraints on colour categorization, and linguistic evidence provides no grounds for the universality of basic colour categories.
Scotopic hue percepts in natural scenes.
The results challenge the classic view that rod vision is achromatic and suggest that scotopic hue perception is mediated by cortical mechanisms.
Partial hue-matching.
This paper puts forth a new method--partial hue-matching--that is based on judgments of whether two colors have some hue in common, which allows a set of component hues to be established objectively, without resorting to verbal definitions.


Trichromatic colour opponency in ganglion cells of the rhesus monkey retina.
The results indicate that trichromatic interactions in the macaque visual system begin in the retina, and that blue‐sensitive cones in the retinal area being considered are likely to parallel the availability of blue‐ sensitivity cones.
Responses of macaque lateral geniculate cells to luminance and color figures.
The spatial tuning of macaque lateral geniculate neurones was compared for luminance-based and color-based lines, and the size of the increase or decrease in firing was noted.
Effect of retinal image stabilization on the appearance of heterochromatic targets.
  • J. Krauskopf
  • Physics
    Journal of the Optical Society of America
  • 1963
The appearance of targets consisting of central disks of one color surrounded by annuli of another color were investigated under conditions such that the inner edge of the annulus was stabilized but the outer boundary was not.
Enchancement of luminance flicker by color-opponent mechanisms.
Center and surround responses, which are antagonistic at low temporal frequencies, become synergistic at high ones, making these cells most responsive at high frequencies to those wavelengths to which they are least responsive at low frequencies.
An opponent-process theory of color vision.
Throughout some hundred years since the original formulation of the idea, a continued series of attempts has been made to find the proper transformation of the three measured colormixture curves that will bridge the gap and yield the unique spectral distribution curves of the desired physiological correlates of theThree postulated "fundamental" color sensations.
Analysis of response patterns of LGN cells.
Comparisons with psychophysical data indicated that nonopponent cells transmit brightness information; opponent cells, however, carry information about color, the hue of a light being determined by the relative responses of the four types.
Further analysis of the responses of LGN cells.
  • I. Abramov
  • Biology
    Journal of the Optical Society of America
  • 1968
This paper presents a further analysis of the response patterns from the four types of spectrally opponent cells in the macaque lateral geniculate nucleus to diffuse flashes of monochromatic light.
Three-dimensional visual stimulus deflector.
A 3-D visual stimulus deflector has been designed so that a subject can view any stimulus pattern or object through it, and the pattern can be moved over a range of 40 degrees horizontally and 30 degrees vertically.