Prof. Dr. Gegenfurtner

On the origin of color categories

Project C2 combines psychophysics, modeling and neuroimaging to obtain a unified account for the emergence of color categories and their relationship to object categories. In particular we try to disentangle the contributions of retinal mechanisms and attention to categorical perception of color. Through an fMRI study we investigate the neuronal basis for the interaction between color perception and categorization, and we aim to build an image-computable model that covers color vision from eye to brain.

new project-related publications

Akbarinia, A., Morgenstern, Y., & Gegenfurtner, K. R. (2023). Contrast sensitivity function in deep networks.Neural Networks, 164, 228-244. find paper

Albers, A. M., Baumgartner, E., & Gegenfurtner, K. R. (2022). Color constant representations in early visual cortex. bioRxiv (2022): 2022-06. find paper

de Vries, J.P., Akbarinia, A., Flachot, A. & Gegenfurtner, K.R. (2022). Emergent color categorization in a neural network trained for object recognition. eLife, 11, e76472. find preprint

de Vries, J.P., Flachot, A., Morimoto, T. & Gegenfurtner, K.R. (2023). A deep new look at color. Behavioral and Brain Sciences46 (2023): e389 find paper

Flachot, A., Akbarinia, A., Schütt, H.H., Fleming, R.W., Wichmann, F.A. & Gegenfurtner, K.R. (2022). Deep neural models for color discrimination and color constancy. Journal of Vision, 22(4), 17-17. find paper

Gegenfurtner, K. R., Weiss, D., & Bloj, M. (2024). Color constancy in real-world settings. Journal of Vision24, no. 2 (2024): 12-12. find paper

Gil Rodríguez, R., Bayer, F., Toscani, M., Guarnera, D. Y., Guarnera, G. C., & Gegenfurtner, K. R. (2022). Colour calibration of a head mounted display for colour vision research using virtual reality. SN Computer Science, 3, 1-10. find paper

Gil Rodríguez, R., Hedjar, L., Toscani, M., Guarnera, D., Guarnera, G.C. & Gegenfurtner, K.R. (2024). Color Constancy mechanisms in virtual reality environments. Journal of Vision24, no. 5 (2024): 6-6. find paper

Morimoto, T., Akbarinia, A., Storrs, K., Cheeseman, J. R., Smithson, H. E., Gegenfurtner, K. R., & Fleming, R. W. (2023). Color and gloss constancy under diverse lighting environments. Journal of Vision, 23(7), 8-8. find paper

Zhang, Y., Valsecchi, M., Gegenfurtner, K. R., & Chen, J. (2023). The time course of chromatic adaptation in human early visual cortex revealed by SSVEPs. Journal of Vision23, no. 5 (2023): 17-17. find paper

former project-related publications

Akbarinia, A., & Gegenfurtner, K. R. (2018). Color metamerism and the structure of illuminant space. JOSA A, 35(4), B231-B238. find paper

Bloj, M., Weiß, D., & Gegenfurtner, K. R. (2016). Bias effects of short-and long-term color memory for unique objects. JOSA A, 33(4), 492-500. find paper

Chen, J., & Gegenfurtner, K. R. (2021). Electrophysiological evidence for higher-level chromatic mechanisms in humans. Journal of Vision, 21(8), 12-12. find paper

Ennis, R., Toscani , M., & Gegenfurtner , K. R. (2017). Seeing lightness in the dark. Current Biology, 27(12), R586-R588.

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Ennis, R., Schiller, F., Toscani, M., & Gegenfurtner, K. R. (2018). Hyperspectral database of fruits and vegetables. JOSA A, 35(4), B256-B266. find paper

Flachot, A., & Gegenfurtner, K. R. (2018). Processing of chromatic information in a deep convolutional neural network. JOSA A, 35(4), B334-B346. find paper

Flachot, A., & Gegenfurtner, K. R. (2021). Color for object recognition: Hue and chroma sensitivity in the deep features of convolutional neural networks. Vision Research, 182(1), 89-100. find paper

Flachot, A., Akbarinia, A., Schütt, H. H., Fleming, R. W., Wichmann, F. A., & Gegenfurtner, K. R. (2020). Deep Neural Models for color discrimination and color constancy. arXiv preprint arXiv:2012.14402. find preprint

Gegenfurtner, K. R., Bloj, M., & Toscani, M. (2015). The many colours of ‘the dress’. Current Biology, 25(13), R543-R544. find paper

Hamilton-Fletcher, G. D. I., Witzel, C., Reby, D., & Ward, J. (2017). Sound Properties Associated With Equiluminant Colours. Multisensory Research, 30(3-5), 337-362. find paper

Hansen, T. & Gegenfurtner, K.R. (2017). Color contributes to object contour perception in natural scenes. Journal of Vision, 17(3), 14-14. find paper

Koenderink, J., Braun, D.I. & van Doorn, A. (2021). Affective Responses to Image Color Combinations, Art & Perception. in press.

Koenderink, J., van Doorn, A. & Gegenfurtner, K.R. (2017). Color weight photometry Vision Research , in press.

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Koenderink, J., van Doorn, A. & Gegenfurtner, K.R. (2021). RGB Colors and Ecological Optics. Front. Comput. Sci. 3: 630370. find paper

Koenderink, J., van Doorn, A., & Gegenfurtner, K. (2018a). Area Dominates Edge in Pointillistic Colour. i-Perception, 9(4), 2041669518788582. find paper

Koenderink, J., van Doorn, A., & Gegenfurtner, K. (2018b). Graininess of RGB-Display Space. i-Perception, 9(5), 2041669518803971. find paper

Koenderink, J., van Doorn, A., & Gegenfurtner, K. (2018c). Color weight photometry. Vision research, 151, 88-98. find paper

Koenderink, J., van Doorn, A., & Gegenfurtner, K. (2019). Colour Order. i-Perception, 10(5), 2041669519872516. find paper

Koenderink, J., van Doorn, A., & Gegenfurtner, K.R. (2020). Color & Things. i-Perception, 11(6), 1-43. find paper

Koenderink, J., van Doorn, A., Witzel, C. & Gegenfurtner, K.R. (2020). Hues of color afterimages. i-Perception 11(1), 2041669520903553. find paper

Rogers, M., Witzel, C., Rhodes, P., & Franklin, A. (2020). Color constancy and color term knowledge are positively related in early childhood. Journal of Experimental Child Psychology, 196, 104825. find paper.

Schiller, F., Valsecchi, M., & Gegenfurtner, K. (2017). An evaluation of different measures of color saturation. Vision Research, in press.

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Schloss, K., & Witzel, C. (2020). Blues don't bring the blues: challenging conventional notions of color-emotion associations. Journal of the Optical Society of America A: Optics and Image Science, and Vision. find paper

Siuda-Krzywicka, K., Boros, M., Bartolomeo, P., & Witzel, C. (2019). The biological bases of colour categorisation: From goldfish to the human brain. Cortex, 118, 82-106. find paper

Siuda-Krzywicka, K., Witzel, C., Bartolomeo, P., & Cohen, L. (2021). Color naming and categorization depend on distinct functional brain networks. Cerebral Cortex, 31(2), 1106-1115. find paper

Siuda-Krzywicka, K., Witzel, C., Chabani, E., Taga, M., Coste, C., Cools, N., ... & Bartolomeo, P. (2019). Color categorization independent of color naming. Cell reports, 28(10), 2471-2479. find paper

Siuda-Krzywicka, K., Witzel, C., Taga, M., Delanoe, M., Cohen, L., & Bartolomeo, P. (2020). When colours split from objects: The disconnection of colour perception from colour language and colour knowledge. Cognitive neuropsychology, 37(5-6), 325-339. find paper

Toscani, M., Gegenfurtner, K. R., & Doerschner, K. (2017). Differences in illumination estimation in# thedress. Journal of Vision, 17(1), 22-22.

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Toscani, M., Guarnera, D., Guarnera, C., Hardeberg, J. Y., & Gegenfurtner, K. (2020). Three perceptual dimensions for specular and diffuse reflection. ACM Transactions on Applied Perception (TAP), 17(2), 1-26. find paper

Toscani, M., Milojevic, Z., Fleming, R. W., & Gegenfurtner, K. R. (2020). Color consistency in the appearance of bleached fabrics. Journal of Vision, 20(4), 11-11. find paper

Witzel, C (2016). New Insights Into the Evolution of Color Terms or an Effect of Saturation? i-Perception, 7(5), 1-4. find paper

Witzel, C. (2016). An Easy Way to Show Memory Color Effects. i-Perception, 7(5), 1-11.

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Witzel, C. (2018). Misconceptions about colour categories. Review of Philosophy and Psychology, 1-42. doi:10.1007/s13164-018-0404-5 find paper

Witzel, C., & Gegenfurtner, K. R (2018a). Color Perception: Objects, Constancy, and Categories. Annual review of vision science, (0). doi:10.1146/annurev-vision-091517-034231 find paper

Witzel, C., & Gegenfurtner, K. R. (2015). Categorical facilitation with equally discriminable colors. Journal of vision, 15(8), 22-22.

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Witzel, C., & Gegenfurtner, K. R. (2016). Categorical perception for red and brown. Journal of Experimental Psychology: Human Perception and Performance, Vol 42(4), Apr 2016, 540-570.

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Witzel, C., & Gegenfurtner, K. R. (2018b). Are red, yellow, green, and blue perceptual categories?. Vision research, 151, 152-163. find paper

Witzel, C., & Toscani, M. (2020). How to make a# theDress.JOSA A, 37(4), A202-A211. find paper

Witzel, C., Maule, J., & Franklin, A. (2019). Red, yellow, green, and blue are not particularly colorful. Journal of Vision, 19(14), 27-27. find paper

Witzel, C., O'Regan, J. K., & Hansmann-Roth, S. (2017). The dress and individual differences in the perception of surface properties. Vision Research, in press. find paper

Witzel, C., Olkkonen, M., & Gegenfurtner, K. R. (2016). Memory colours affect colour appearance. Behavioral and brain sciences, 39, 51-52. find paper

Witzel, C., Olkkonen, M., & Gegenfurtner, K. R. (2018). A Bayesian Model of the Memory Colour Effect. i-Perception, 9(3), 2041669518771715. find paper

Project leader

Speaker

Prof.
Karl R. Gegenfurtner, Ph.D. gegenfurtner@uni-giessen.de

Staff

Dr.
Pablo Barrionuevo

PhD Student
Florian Bayer Justus-Liebig University Gießen
FB 06 Psychology and Sport Sciences
Florian.Bayer@psychol.uni-giessen.de

Dr.
Aimee Martin Justus-Liebig University Giessen
FB 06 Psychology and Sport Sciences
Aimee.Martin@psychol.uni-giessen.de