İnci Ayhan, Ph.D.


Assistant Professor

Ph: +90 212 359 70 51

Vision Lab:


PhD, University College London, 2010

BS, Middle East Technical University, 2007 (Double Major: Biology)

BS, Middle East Technical University, 2006 (Psychology)

Courses Taught: 
  • Sensation and Perception
  • Introduction to Statistics for Psychology
  • Experimental Psychology
  • Research Methods in Psychology
  • Advanced Cognitive Psychology
  • Matlab Programming for Psychologists
  • Readings and Research in Visual Perception
Research Interests: 
  • Visual perception
  • Temporal processing in the visual system
  • Time perception
  • Visuo-motor interaction
  • Visual adaptation
  • Mapping visual deformations in Macular Degeneration


     Completed Theses

  • A psychophysical investigation and a philosophical discussion on event-time perception (Doğa Gülhan, supervisor: I Ayhan, co-supervisor: L Thorpe)
  • The role of attention on scene recognition (Berhan Şenyazar, supervisor: I Ayhan, co-supervisor: AA Salah)
  • Sensorimotor interaction and time perception: An empirical study and a philosophical discussion (Duygu Özbağcı, supervisor: I Ayhan, co-supervisor: L Thorpe)


     Ongoing Projects & Theses

  • Measuring image distortions in patients with age-related macular degeneration with an Iterative Amsler Grid (IAG) (İnci Ayhan, Johannes Zanker & Edward Doyle)
  • Interaction between cyberbodies and cyberspace: The effect of the abilities of avatars on affordance perception in virtual reality (Tuğçe Akkoç, supervised by İnci Ayhan & Emre Uğur)
  • Perceived duration of multimodal stimuli (Didem Alaşhan, supervised by İnci Ayhan & Reşit Canbeyli)
  • A motor recalibration influence on colour-motion asynchrony in a visuo-motor paradigm (Melisa Kurtcan, supervised by Lucas Thorpe & İnci Ayhan)
  • The contextual effect of colour preference on the perception of emotionally ambiguous faces (Didem Alaşhan & Doğa Gülhan, supervised by İnci Ayhan)
Recent Publications: 


Gulhan, D., & Ayhan, I. (Under Revision). Short-term global motion adaptation induces a compression in the subjective duration of dynamic visual events. Journal of Vision.

Ayhan, I., & Canbeyli, R. (2018) Zaman, zaman algısı ve biyolojik saat. In Biceroglu, H., Tonge, M., Seckin, M. Adiguzel, E., Gurvit, H. & Hanci, M. (Eds.) Fonksiyonun Cerrahi Anatomisi, İstanbul: Us Akademi. (in Turkish)

Bruno, A., Ayhan, I., & Johnston, A. (2015). Changes in apparent duration follow shifts in perceptual timing. Journal of Vision 15(2).

Ayhan, I., Revina, Y., Bruno, A., & Johnston, A. (2012). Duration judgments over multiple elements. Frontiers in Perception Science.3: 459.

Bruno, A., Ayhan, I., & Johnston, A. (2012). Effects of temporal features and order on the apparent duration of a visual stimulus. Frontiers in Perception Science. 3: 90.

Bruno, A., Ayhan, I.., & Johnston, A. (2011). Duration expansion at low luminance levels. Journal of Vision, 11(14): 13, 1-13.

Ayhan, I., Bruno, A., Nishida, S., & Johnston, A. (2011). The effect of luminance signal on the strength of adaptation-induced temporal compression. Journal of Vision, 11(7): 22, 1-17.

Johnston, A., Bruno, A., & Ayhan, I. (2011). Retinotopic selectivity of adaptation-based compression of event duration: Reply to Burr, Cicchini, Arrighi, and Morrone. Journal of Vision, 10(10):30b, 1–3.

Bruno, A., Ayhan, I., & Johnston, A. (2010). Retinotopic adaptation-based visual duration compression. Journal of Vision, 10(10):30, 1-18.

Ayhan, I., Bruno, A., Nishida, S., & Johnston, A. (2009). The spatial tuning of adaptation-based time compression. Journal of Vision, 9(11):2, 1-12.

Selected Presentations

Alashan, D., Canbeyli, R., & Ayhan, I. (2018). Multisensory duration reproduction in the supra-second range (European Conference on Visual Perception)

 Ozbagci, D., & Ayhan, I. (2018). Action-Induced Compression in the perceived time of visual events (European Conference on Visual Perception)

Kurtcan, A.M., & Ayhan, I. (2017). A Motor Recalibration Influence On Color-motion Asynchrony (CMA) Effect Size In A Visuo Motor Paradigm (European Conference on Visual Perception)

Gulhan, D., & Ayhan, I. (2017). Short-term Adaptation Effects On Perceived Duration In Random Dot Kinematograms (rdks) And Drifting Gratings (European Conference on Visual Perception)

Alashan, D., Gulhan, D., & Ayhan, I. (2016). The effect of colour preference on the perception of emotionally ambiguous faces. (4th International Symposium on Brain and Cognitive Science)

Senyazar, B., Salah, A. A., & Ayhan, I. (2016). The role of attention on the minimum presentation duration required for scene recognition. (European Conference on Visual Perception)

Gulhan, D. & Ayhan, I. (2016). The perceived duration of global motion in random dot kinematogram (RDK) displays. (Vision Sciences Society Annual Meeting).