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Projector Information

Visual stimuli are provided in both the simulator and the actual scanner by a small LG projector. This projector is driven by the stimulus presentation computer and can provide resolutions of up to 1920 x 1080 with a refresh rate of 60 Hz. Native resolution is 1280 x 720.

In the scanner, the projected image is rendered on a frosted polycarbonate screen with dimensions of 18 inches wide by 11 inches tall for a nominal aspect ratio of 15:9. Distance from the participant's eye to the screen is about 41.5 inches. This results in a visual angle of the projected image being about 24.48 degrees horizontally and 15.1 degrees vertically.

Projector Geometry Schematic
Projector Geometry