Research Director
Head of Research Unit, Laboratoire des Systèmes Perceptifs (ENS/CNRS)
Cognitive Studies
Visual perception
Department of Cognitive Studies
, updated on
11 January 2022
Laboratoire des systèmes perceptifs (LSP)
2ème étage, bureau U226
29, rue d'Ulm 75230 Paris cedex 05
01 44 322791

As a researcher in visual perception, I use experimental methods of behavioral studies (psychophysics), modeling (Bayesian), and neuroscience (electrophysiology).

Field of research

How do we perceive the world around us? Research in my group focuses on mid-level vision, the link between the processing of elementary features in the image and the awareness of natural scenes. Current research topics include three-dimensional perception (pictorial cues, motion cues and binocular disparities), cross-modal perception (vision-audition), temporal dynamics of perception (in particular bistable perception), probabilistic modelling of perception (Bayesian models), sequential effects in perception (from adaptation and prior statistics), and confidence judgments in our perceptual decisions.


  • Jovanovic, L., & Mamassian, P. (2020). Events are perceived earlier in peripheral vision. Current Biology, 30(21), R1299–R1300.
  • Balsdon, T., Wyart, V., & Mamassian, P. (2020). Confidence controls perceptual evidence accumulation. Nature Communications, 11(1), 1753–11.
  • Gekas, N., Meso, A.I., Masson, G.S., & Mamassian, P. (2017). A normalization mechanism for estimating visual motion across speeds and scales. Current Biology, 27(10), 1514-1520. doi: 10.1016/j.cub.2017.04.022.
  • Mamassian, P. (2016). Visual confidence. Annual Review of Vision Science, 2, 459-481. doi: 10.1146/annurev-vision-111815-114630.
  • Wexler, M., Duyck, M., and Mamassian, P. (2015). Persistent states in vision break universality and time invariance. Proceedings of the National Academy of Sciences USA, 112(48), 14990-14995. doi: 10.1073/pnas.1508847112.