T Wachtler

Summary

Affiliation: University of Freiburg
Country: Germany

Publications

  1. ncbi request reprint Chromatic structure of natural scenes
    T Wachtler
    Computational Neurobiology Laboratory, The Salk Institute, La Jolla, California 92037, USA
    J Opt Soc Am A Opt Image Sci Vis 18:65-77. 2001
  2. ncbi request reprint Nonlocal interactions in color perception: nonlinear processing of chromatic signals from remote inducers
    T Wachtler
    Howard Hughes Medical Institute, The Salk Institute for Biological Studies, La Jolla, CA 92037, USA
    Vision Res 41:1535-46. 2001
  3. pmc Representation of color stimuli in awake macaque primary visual cortex
    Thomas Wachtler
    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
  4. pmc Spatiochromatic receptive field properties derived from information-theoretic analyses of cone mosaic responses to natural scenes
    Eizaburo Doi
    Institute for Neural Computation, University of California, San Diego, La Jolla, CA 92093, USA
    Neural Comput 15:397-417. 2003
  5. pmc 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
  6. pmc Scale-invariance of receptive field properties in primary visual cortex
    Tobias Teichert
    Department of Physics, Neurophysics Group, Philipps University, Marburg, Germany
    BMC Neurosci 8:38. 2007
  7. ncbi request reprint Modeling color percepts of dichromats
    Thomas Wachtler
    Institut fur Biologie III, Albert Ludwigs Universitat, Schänzlestr 1, 79104 Freiburg, Germany
    Vision Res 44:2843-55. 2004
  8. ncbi request reprint Coding the presence of visual objects in a recurrent neural network of visual cortex
    Timm Zwickel
    AppliedPhysics NeuroPhysics Group, Department of Physics, University Marburg, Renthof 7, D 35032 Marburg, Germany
    Biosystems 89:216-26. 2007
  9. pmc Cone selectivity derived from the responses of the retinal cone mosaic to natural scenes
    Thomas Wachtler
    Neurophysics Group, Department of Physics, Philipps University, Marburg, Germany
    J Vis 7:6. 2007

Detail Information

Publications9

  1. ncbi request reprint Chromatic structure of natural scenes
    T Wachtler
    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...
  2. ncbi request reprint Nonlocal interactions in color perception: nonlinear processing of chromatic signals from remote inducers
    T Wachtler
    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...
  3. pmc Representation of color stimuli in awake macaque primary visual cortex
    Thomas Wachtler
    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...
  4. pmc Spatiochromatic receptive field properties derived from information-theoretic analyses of cone mosaic responses to natural scenes
    Eizaburo Doi
    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...
  5. pmc 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...
  6. pmc Scale-invariance of receptive field properties in primary visual cortex
    Tobias Teichert
    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...
  7. ncbi request reprint Modeling color percepts of dichromats
    Thomas Wachtler
    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...
  8. ncbi request reprint Coding the presence of visual objects in a recurrent neural network of visual cortex
    Timm Zwickel
    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...
  9. pmc Cone selectivity derived from the responses of the retinal cone mosaic to natural scenes
    Thomas Wachtler
    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...