Laboratories
Laboratory for Perceptual Dynamics
Cees van LEEUWEN
Laboratory Head
Cees van LEEUWEN (Ph.D.)
mail

Research Areas

The Perceptual Dynamics Laboratory takes a "complex systems" approach to visual information processing. Complex systems are dynamical systems with large numbers of degrees of freedom. Their dynamics is characterized by spatio-temporal intermittency, chaotic itinerancy, and self-organized criticality. The aim of the laboratory is two-fold: to develop models of the human visuo-perceptual system based on the complex systems approach and to test the assumptions of these models in laboratory experiments. Accordingly, the laboratory consists of a multi-disciplinary team of scientists, reflecting on a small scale the multi-disciplinary character of BSI.

Research Subject

  1. Basic visual processing functions
  2. Complex visual functions
  3. Self-organization of functional brain architecture

Related links

  1. RIKEN Brain Science Institute Website_Laboratories PageNew Window
  2. Individual Website Laboratory PageNew Window

RIKEN RESEARCH

October 03, 2008
Brain gain
Attention enhances initial brain responses to sights and soundsNew Window
March 03, 2007
How the brain gets its message across
Timing is essential when it comes to the distribution of information across the brainNew Window

List of Selected Publications

  1. Gepshtein S., Tyukin I., and Kubovy M.
    "The economics of motion perception and invariants of visual sensitivity"
    Journal of Vision,. 78, 8-1-8-18 (2007).
  2. Gepshtein S. and Kubovy M.
    "The lawful perception of apparent motion"
    Journal of Vision, 78, 9-1-9-15 (2007).
  3. Gong P. and van Leeuwen C.
    "Dynamically maintained spike timing sequences in networks of pulse-coupled oscillators with delays"
    Physical Review Letters, 98, 048104-1-048104-4 (2007).
  4. Gong P., Nikolaev A., and van Leeuwen C.
    "Intermittent dynamics underlying the intrinsic fluctuations of the collective synchronization patterns in electrocortical activity"
    Physical Review E, 76, 011904-1-011904-7 (2007).
  5. Ito J.,, Nikolaev A, and van Leeuwen C,
    "Dynamics of spontaneous transitions between global brain states"
    Human Brain Mapping, 28, 904-913 (2007).
  6. Lachmann T, and van Leeuwen C,
    "Different letter-processing strategies in diagnostic subgroups of developmental dyslexia"
    Cognitive Neuropsychology, 25, 730-744 (2008).
  7. Nikolaev A., Gepshtein S,,, Kubovy M., and van Leeuwen C.
    "Dissociation of early evoked cortical activity in perceptual grouping"
    Experimental Brain Research, 186, 1, 107-122 (2008).
  8. Nikolaev A., Ziessler M., Dimova K., and van Leeuwen C.
    "Anticipated action consequences as a nexus between action and perception: evidence from event-related potentials"
    Biological Psychology, 78, 1, 53-65 (2008).
  9. Tyukin I., Prokhorov D., and van Leeuwen C.
    "Adaptation and parameter estimation in systems with unstable target dynamics and nonlinear parametrization"
    IEEE Transactions on Automatic Control, 52, 9, 1543-1559 (2007)
  10. Tyukin I., Prokhorov D., and van Leeuwen C.
    "Adaptive classification of temporal signals in fixed-weight recurrent neural networks: An existence proof"
    Neural Computation, 20, 2564-2596 (2008).