Cogent Graphics

Cogent Graphics is a graphics toolbox for MATLAB on the PC. You can use Cogent Graphics to generate real-time graphical animations for use as stimuli in visual experiments. Cogent Graphics provides commands for generating animations with millisecond accuracy at refresh rates up to 160Hz as well as mouse and keyboard support for user input.

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Demonstrations

Here you can view some movie files of animations created using Cogent Graphics. Please note that the movies are of lower quality than the original Cogent Graphics animations which run full screen with no jerkiness. The movie clips run only five seconds before repeating but the original animations run indefinitely. Click on the small image to view the movie. Be warned that the movie files are quite large (up to 2Mb) and may take some time to download.

Simple animation

A simple animation

Matlab source code for this animation

Bouncing balls

Bouncing coloured balls

Spinning dartboards

Three spinning, bouncing dartboards

Scrolling check pattern

A scrolling check pattern

Starfield

A full colour star field

Latest news

  • Now available: The brain's specialized systems for aesthetic and perceptual judgments by Semir Zeki and Tomohiro Ishizu is now available under open access in the European Journal of Neuroscience.
  • Now available: Functional Specialization and Generalization for Grouping of Stimuli Based on Colour and Motion by Semir Zeki and Jonathan Stutters has been published in NeuroImage.
  • Now available: Splendors and Miseries of the Brain is now available in Greek.
  • 19 April 2013: Semir Zeki will give a talk at the 10th International Cognitive Neurology Meeting which will be held in Istanbul, Turkey.
  • 29 May 2013: Semir Zeki will give a talk at the Atena Onlus Conference in Rome, Italy.
  • 8-12 July 2013: Semir Zeki will give a talk entitled The Objectivity of Subjective Truths at the 12th International AIC Congress at the The Sage, Gateshead, Newcastle.
  • 6 February 2014: Semir Zeki will give the Sir Gordon Holmes lecture at the Royal Society of Medicine.