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biac:experimentalcontrol:projector
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biac:experimentalcontrol:projector [2011/03/31 14:49] 127.0.0.1 external edit |
biac:experimentalcontrol:projector [2023/02/23 18:43] |
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| - | **Experimental Control System** | ||
| - | ===== Projector===== | ||
| - | Video stimuli are presented to subjects in the bore of the 1.5T scanner using a video projector located at the back of the magnet room. This is a standard video projector that has a custom built long Buhl lens that can focus its output onto a transluscent plastic screen near the center of the magnet bore. The subjects view the screen when they are lying in the scanner using a pair of glasses with a 45 degree mirror. The mirror allows them to see the screen behind them. | ||
| - | The screen covers approximately 30 x 15 degrees of the visual field (at 50cm from the eyes). | ||
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| - | (Note; getting the video to the projector is by way of the switch) | ||
| - | (Note; once person is inside | ||
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| - | The projector is currently only used on the 1.5T. Input to the projector is controlled by the [[biac: | ||
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| - | * [[biac: | ||
| - | * [[biac: | ||
| - | * [[biac: | ||
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| - | **[[biac: | ||
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biac/experimentalcontrol/projector.txt · Last modified: 2023/02/23 18:43 (external edit)
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