Prof.

Karl R. Gegenfurtner, Ph.D.

Prof. Karl R. Gegenfurtner, Ph.D.

Prof. Dr. Karl R. Gegenfurtner.

The emphasis of my current research is on information processing in the visual system. Specifically, I am concerned with the relationship between low level sensory processes, higher level visual cognition, and sensorimotor integration.

My goal is to answer the question how complex scenes and objects are perceived in a natural environment, how they are represented in the brain, and how the visual information is used to drive the motor system.

Kontaktdaten
Justus-Liebig Universität Gießen
FB 06 Psychologie und Sportwissenschaft
Otto-Behaghel-Str. 10
35394 Giessen (Germany)
+49 (0)641 99 26 100
+49 (0)641 99 26 119
320F
E-Mail
Homepage

  • Ennis, R., Schiller, F., Toscani, M., & Gegenfurtner, K. R. (2018). Hyperspectral database of fruits and vegetables. JOSA A, 35(4), B256-B266. find paper
  • Akbarinia, A., & Gegenfurtner, K. R. (2018). Color metamerism and the structure of illuminant space. JOSA A, 35(4), B231-B238. find paper
  • Billino, J., Hennig, J., & Gegenfurtner, K. (2016a). Association between COMT genotype and the control of memory guided saccades: Individual differences in healthy adults reveal a detrimental role of dopamine. Vision Research. DOI find paper
  • Billino, J., Hennig, J., & Gegenfurtner, K. (2016b). The role of dopamine in anticipatory pursuit eye movements: Insights from genetic polymorphisms in healthy adults. eNeuro, 3(6). DOI 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
  • Braun, D. I. & Gegenfurtner, K.R. (2016). Dynamics of oculomotor direction discrimination. Journal of Vision, 16(13):4. DOI find paper
  • Braun, D.I., Schütz & Gegenfurtner, K.R. (2017). Visual sensitivity for luminance and chromatic stimuli during the execution of smooth pursuit and saccadic eye movements. Vision Research, 136,57-69. DOI find paper
  • Chen, J ., Valsecchi , M. & Gegenfurtner , K.R. (2017b). Attention is allocated closely ahead of the target during smooth pursuit eye movements: evidence from EEG frequency tagging. Neuropsychologia . DOI find paper
  • Chen, J., Valsecchi, M. & Gegenfurtner, K.R. (2017a). Enhanced brain responses to color during smooth pursuit eye movements. Journal of Neurophysiology , in press. DOI find paper
  • Chen, J., Valsecchi, M. & Gegenfurtner, K.R. (2016a). Role of motor execution in the ocular tracking of self-generated movements. Journal of Neurophysiology, 16(6):2586-2593. DOI find paper
  • Chen, J., Valsecchi, M., & Gegenfurtner, K. R. (2016b). LRP predicts smooth pursuit eye movement onset during the ocular tracking of self-generated movements. Journal of neurophysiology, 116(1):18-29. DOI find paper
  • Ennis, R., Toscani , M., & Gegenfurtner , K. R. (2017). Seeing lightness in the dark. Current Biology, 27(12), R586-R588. DOI 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
  • Gegenfurtner, K. R. (2016). The interaction between vision and eye movements (Review based on ECVP 2014 Rank Prize Lecture).Perception, 45:12, 1333-1357. find paper
  • Gegenfurtner, K. R., Bloj, M., & Toscani, M. (2015). The many colours of ‘the dress’. Current Biology, 25(13), R543-R544. find paper
  • Goettker, A., Braun, D. I., Schütz, A. C., & Gegenfurtner, K. R. (2018). Execution of saccadic eye movements affects speed perception. Proceedings of the National Academy of Sciences, 201704799. 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
  • Huang , J., Gegenfurtner , K. R., Schütz , A. C., & Billino , J. (2017). Saccadic adaptation reveals differential ageing processes. Journal of Vision , 17(6):9, 1-18. DOI find paper
  • Koenderink, J., Valsecchi, M., van Doorn, A., Wagemans, J., & Gegenfurtner, K. (2017). Eidolons: Novel stimuli for vision research. Journal of Vision, 17(2), 7-7. find paper
  • Koenderink, J., van Doorn, A. & Gegenfurtner, K.R. (2017). Color weight photometry Vision Research , in press. DOI find paper
  • Paeye, C., Schütz, A. C., & Gegenfurtner, K. R. (2016). Visual reinforcement shapes eye movements in visual search. Journal of Vision, 16(10):15, 1-15. DOI find paper
  • Paulun, V. C., Schütz, A. C., Michel, M. M., Geisler, W. S., & Gegenfurtner, K. R. (2015). Visual search under scotopic lighting conditions. Vision Research, 113, 155-168.
  • Ross , N., Göttker , A., Schütz , A.C., Braun , D.I. & Gegenfurtner , K.R. (2017). Discrimination of curvature from motion during pursuit and fixation. Journal of Neurophysiology, jn-00324. find paper DOI
  • Schiller, F., Valsecchi, M., & Gegenfurtner, K. (2017). An evaluation of different measures of color saturation. Vision Research, in press. DOI find paper
  • Schütz, A. C., Lossin, F., & Gegenfurtner, K. R. (2015). Dynamic integration of information about salience and value for smooth pursuit eye movements. Vision Research, 113, 169-178. DOI find paper
  • Souto, D., Gegenfurtner, K. R., & Schütz, A. C. (2016). Saccade adaptation and visual uncertainty. Frontiers in Human Neuroscience, 10227, 1-12.DOI find paper
  • Toscani , M., Gegenfurtner , K. R. & Valsecchi , M., (2017). Foveal to peripheral extrapolation of brightness within objects. Journal of Vision ,in press. DOI find paper
  • Toscani, M., Gegenfurtner, K. R., & Doerschner, K. (2017). Differences in illumination estimation in# thedress. Journal of Vision, 17(1), 22-22. DOI find paper
  • Valsecchi, M., & Gegenfurtner, K.R. (2016). Dynamic Re-calibration of Perceived Size in Fovea and Periphery through Predictable Size Changes. Current Biology , 26, 59-63. DOI find paper
  • Valsecchi, M., Billino, J., & Gegenfurtner, K. R. (2018). Valsecchi, M., Billino, J., & Gegenfurtner, K. R. (2018). Healthy aging is associated with decreased risk-taking in motor decision-making. Journal of experimental psychology: human perception and performance, 44(1), 154.
  • Valsecchi, M., Billino, J., & Gegenfurtner, K.R. (2017). Healthy aging is associated with decreased risk-taking in a motor decision-making. JEP HPP. DOI 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. (2018b). Are red, yellow, green, and blue perceptual categories?. Vision research. find paper
  • Witzel, C., & Gegenfurtner, K. R. (2015). Categorical facilitation with equally discriminable colors. Journal of vision, 15(8), 22-22. DOI find paper
  • 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. DOI 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
  • Witzel, C., Olkkonen, M., & Gegenfurtner, K. R. (2016). Memory colours affect colour appearance. Behavioral and brain sciences, 39, 51-52. find paper

Ältere projektrelevante Veröffentlichungen

  • Billino, J., Braun, D., Bremmer, F., & Gegenfurtner, K. (2011). Challenges to normal neural functioning provide insights into separability of motion processing mechanisms. Neuropsychologia, 49, 3151-3163.
  • Billino, J., Braun, D.I., Böhm, K.-D., Bremmer, F., & Gegenfurtner, K.R. (2009). Cortical networks for motion processing: Effects of focal brain lesions on perception of different motion types. Neuropsychologia, 47, 2133-2144.
  • Billino, J., Bremmer, F., & Gegenfurtner K.R. (2008). Differential aging of motion processing mechanisms: Evidence against general perceptual decline. Vision Research, 48, 1254-1261.
  • Billino, J., Hamburger, K., & Gegenfurtner, K.R. (2009b). Age effects on the perception of motion illusions. Perception, 38(4), 508-521.
  • Braun, D. I., Mennie, N., Rasche, C., Schütz, A. C., Hawken, M. J., & Gegenfurtner, K. R. (2008). Smooth pursuit eye movements to isoluminant targets. Journal of Neurophysiology, 100, 1287-1300.
  • Braun, D. I., Schütz, A. C. & Gegenfurtner, K. R. (2010). Localization of speed differences of context stimuli during fixation and smooth pursuit eye movements. Vision Research, 50(24), 2740-2749.
  • Braun, D.I., Mennie, N., Rasche, C., Schütz, A.C., Hawken, M.J. & Gegenfurtner, K.R. (2008). Smooth pursuit eye movements to isoluminant targets. Journal of Neurophysiology, 100, 1287-1300.
  • Gegenfurtner, K. R. (2003). Cortical Mechanisms of Colour Vision. Nature Reviews Neuroscience, 4, 563-572.
  • Gegenfurtner, K. R., Xing, D., Scott, B. H., & Hawken, M. J. (2003). A comparison of pursuit eye movement and perceptual performance in speed discrimination. Journal of Vision, 3(11), 865-876.
  • Gegenfurtner, K.R. & Franz, V.H. (2007). A comparison of localization judgments and pointing precision. Journal of Vision, 7(5):11, 1-12.
  • Hansen, T. & Gegenfurtner, K.R. (2009). Independence of color and luminance edges in natural scenes. Visual Neuroscience, 26, 35-49.
  • Hansen, T., Olkkonen, M., Walter, S. & Gegenfurtner, K. R. (2006). Memory modulates color appearance. Nature Neuroscience, 9(11), 1367–1368.
  • Hansen, T., Walter, S. & Gegenfurtner, K.R. (2007). Effects of spatial and temporal context on color categories and color constancy. Journal of Vision, 7(4):2, 1-15.
  • Olkkonen, M., Hansen, T., & Gegenfurtner, K. R. (2009). Categorical color constancy for simulated surfaces. Journal of Vision, 9(12), 1-18.
  • Olkkonen, M., Witzel, C., Hansen, T., & Gegenfurtner, K. R. (2010). Categorical color constancy for real surfaces. Journal of Vision, 10(9).
  • Rasche, C., & Gegenfurtner, K. R. (2009). Precision of speed discrimination and smooth pursuit eye movements. Vision Research, 49(5), 514-523.
  • Schütz , A.C., Trommershäuser, J.T. & Gegenfurtner , K.R. (2012). Dynamic integration of information about salience and value for saccadic eye movements. Proceedings of the National Academy of Sciences USA, 109(19), 7547-7552. find paper
  • Schütz, A. C., Braun, D. I., & Gegenfurtner, K. R. (2011). Eye movements and perception: A selective review. Journal of Vision, 11(5).
  • Schütz, A. C., Delipetkos, E., Braun, D. I., Kerzel, D., & Gegenfurtner, K. R. (2007). Temporal contrast sensitivity during smooth pursuit eye movements. Journal of Vision, 7(13): 3, 1-15
  • Schütz, A. C., Trommershäuser, J., & Gegenfurtner, K. R. (2012). Dynamic integration of information about salience and value for saccadic eye movements. Proc Natl Acad Sci U S A, 109(19), 7547-7552.
  • Schütz, A.C., Braun, D.I., & Gegenfurtner, K.R. (2011). Eye movements and perception: A selective review. Journal of Vision, 11(5), 1-30.
  • Schütz, A.C., Braun, D.I., Kerzel, D. & Gegenfurtner, K.R. (2008). Improved visual sensitivity during smooth pursuit eye movements. Nature Neuroscience, 11, 1211-1216.
  • Spering, M., Schütz, A. C., Braun, D. I., & Gegenfurtner, K. R. (2011). Keep your eyes on the ball: smooth pursuit eye movements enhance prediction of visual motion. Journal of Neurophysiology, 105(4), 1756-1767.
  • Stritzke, M., Trommershäuser, J. & Gegenfurtner, K.R. (2009). Effects of salience and reward information during saccadic decisions under risk. Journal of the Optical Society of America, A, 26, B1-13.
  • Toscani, M., Valsecchi, M., & Gegenfurtner, K. R. (2013). Selection of visual information for lightness judgements by eye movements. Phil. Trans. R. Soc. B, 368(1628), 20130056. find paper
  • Toscani, M., Valsecchi, M., & Gegenfurtner, K. R. (2013). Optimal sampling of visual information for lightness judgments. Proceedings of the National Academy of Sciences, 110(27), 11163-11168. find paper
  • Trommershäuser, J., Glimcher, P.W. & Gegenfurtner , K.R. (2009). Visual Processing, Learning and Feedback in the Primate Eye Movement System. Trends in Neurosciences, 32, 583-590.
  • Valsecchi , M., Gegenfurtner , K.R. & Schütz , A.C. (2013). Saccadic and smooth pursuit eye movements during reading of drifting texts. Journal of Vision , 13(10). find paper
  • Valsecchi, M., Toscani, M., & Gegenfurtner, K.R. (2013). Perceived numerosity is reduced in peripheral vision. Journal of Vision, 13(13): 7. find paper
  • White, B.J., Stritzke, M. & Gegenfurtner, K.R. (2008). Saccadic facilitation in natural backgrounds. Current Biology, 18, 124-128.
  • Witzel, C. & Gegenfurtner, K.R. (2011). Is there a lateralized category effect for color? Journal of Vision, 11(12):16.
  • Witzel, C., & Gegenfurtner, K. R. (2013). Categorical sensitivity to color differences. Journal of Vision, 13(7):1, 1–33. http://www.journalofvision.org/content/13/7/1