- Chromatic structure of natural scenes
Computational Neurobiology Laboratory, The Salk Institute, La Jolla, California 92037, USA
J Opt Soc Am A Opt Image Sci Vis 18:65-77. 2001
..Our findings suggest that nonorthogonal opponent encoding of photoreceptor signals leads to higher coding efficiency and that ICA may be used to reveal the underlying statistical properties of color information in natural scenes...
- Nonlocal interactions in color perception: nonlinear processing of chromatic signals from remote inducers
Howard Hughes Medical Institute, The Salk Institute for Biological Studies, La Jolla, CA 92037, USA
Vision Res 41:1535-46. 2001
..These results may be interpreted as reflecting rapid chromatic interactions that support robustness of color vision under changing viewing conditions...
- Representation of color stimuli in awake macaque primary visual cortex
Sloan Center for Theoretical Neurobiology and Howard Hughes Medical Intitute, The Salk Institute for Biological Studies, La Jolla, CA 92037, USA
Neuron 37:681-91. 2003
..Quantitatively, the average response changes matched the magnitudes of color induction effects measured in human subjects under corresponding stimulus conditions...
- Spatiochromatic receptive field properties derived from information-theoretic analyses of cone mosaic responses to natural scenes
Institute for Neural Computation, University of California, San Diego, La Jolla, CA 92093, USA
Neural Comput 15:397-417. 2003
..These results show that the "form" and "color" channels of the early visual system can be derived from the statistics of sensory signals...
- Color opponency is an efficient representation of spectral properties in natural scenes
Te Won Lee
Institute for Neural Computation, University of California, San Diego, La Jolla, CA 92093 0523, USA
Vision Res 42:2095-103. 2002
..Our results suggest that color opponency may in part be a result of the properties of natural spectra and not solely a consequence of the cone spectral sensitivities...
- Scale-invariance of receptive field properties in primary visual cortex
Department of Physics, Neurophysics Group, Philipps University, Marburg, Germany
BMC Neurosci 8:38. 2007
..Specifically, we investigated the size of the area that enhances responses, i.e., the grating summation field, the size of the inhibitory surround, and the distance dependence of signal coupling, i.e., the linking field...
- Modeling color percepts of dichromats
Institut fur Biologie III, Albert Ludwigs Universitat, Schänzlestr 1, 79104 Freiburg, Germany
Vision Res 44:2843-55. 2004
..Introducing a third cone opsin yields a model that explains normal, trichromat hue scaling...
- Coding the presence of visual objects in a recurrent neural network of visual cortex
AppliedPhysics NeuroPhysics Group, Department of Physics, University Marburg, Renthof 7, D 35032 Marburg, Germany
Biosystems 89:216-26. 2007
..This feedback control acts fast and significantly improves the figure-ground segregation required for the consecutive task of object recognition...
- Cone selectivity derived from the responses of the retinal cone mosaic to natural scenes
Neurophysics Group, Department of Physics, Philipps University, Marburg, Germany
J Vis 7:6. 2007
..This was not the case for a fourth cone type with spectral sensitivity between L and M cones, suggesting an explanation for the lack of strong tetrachromacy in heterozygous carriers of color deficiencies...