Multi-modal Stimulus Delivery

Presentation can deliver 2-d images, 3-d graphics, compressed video, and audio - all at the same time. Play multiple videos and multiple sounds, mixed with any number of many graphical elements. You are only limited by the power and speed of your computer system.

Power and Precision

Presentation takes advantage of modern PC gaming technology to provide powerful and flexible stimulus displays, while at the same time accurately logging all stimulus and response events. The foundation of Presentation and all features are designed and implemented with precision in mind.

Multiple Graphical Elements

Arbitrarily many graphical elements of any type may be combined or displayed simultaneously - video, 3D, images, generated 2D graphics.

Vertical Refresh Synchronization

All display changes are synchronized with the vertical refresh of the video signal. Event times for visual events are the start of the scan signal containing the change.

Rapid Presentation and Frame Control

For most types of stimuli, the display can be changed on every vertical refresh. Stimulus scheduling can be done to achieve desired refresh count durations.

Any Resolution

You may run at any display resolution that your video card supports.

Transparency

Transparency can be used and applied to all types of visual stimuli - images, generated 2d graphics, 3d graphics, even videos.

Color Profile Control

Presentation can apply a color profile (icm) to control the color balance of your display. You can even programmatically alter the video card color calibration table at run time.

Multiple Independent Stimulus Displays

In addition to an experimenter control screen, you may have arbitrarily many stimulus displays displaying independent stimuli, depending on your hardware.

Custom Distance Units

All visual stimulus related parameters for an experiment may be specified in pixels, or in your own custom units, including visual angles.