Stimuli were generated using a Linux (Ubuntu) adapted PC, with Psychophysics Toolbox Version 3 (PTB-3) and EyeLink toolboxes to control stimulus presentation and participant response collection. Stimuli were displayed on a 21″ Sony GDM-5402 CRT monitor with refresh rate of 85 Hz at a viewing distance of 57 cm. Observers’ heads were stabilized by a chin rest. A central black fixation cross subtended 0.5° of visual angle. Target stimuli were 4 cycles per degree sinusoidal Gabor gratings that subtended 3° of visual angle; one Gabor was presented in each quadrant of the display centered at 6° eccentricity. Targets were at 100% contrast for high visibility. The stimuli were presented on a medium gray background.
Gdm 5402 crt monitor
Manufactured by Sony
The GDM-5402 is a CRT (Cathode Ray Tube) monitor manufactured by Sony. It is designed to serve as a display device for various applications, including laboratory equipment, industrial settings, and specialized computing environments. The monitor features a 54-inch diagonal screen size and supports standard display resolutions.
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Lab products found in correlation
4 protocols using gdm 5402 crt monitor
1
Visual Perception Experiment with Gabor Stimuli
2
Gaze-Contingent Psychophysical Experiments
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The stimuli were presented using Psychophysics Toolbox91 (link),92 (link) for MATLAB (The MathWorks, Natick, MA) on an iMac computer with a 21″ gamma-corrected Sony GDM-5402 CRT monitor with resolution of 1280 × 960 pixels and a refresh rate of 100 Hz. An infrared eye tracker system Eyelink 1000 (SR research, Kanata, Ontario, Canada) and a chin rest and head rest were used to ensure eye fixation at the center of the display throughout each trial in the experimental sessions. The viewing distance was 57 cm, and all experiments were performed with a gaze-contingent display in which the eye-tracker enabled new trials to start only once observers had fixated at the center (within a 2° radius fixation window). If an eye-movement outside of this window was detected at any point after the trial started, then that trial was aborted and added to the end of each block (~ 5% of the trials).
3
Eye-Tracking Methodology for Gaze-Contingent Experiments
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The stimuli were presented using Psychophysics Toolbox (Brainard, 1997 (link); Pelli, 1997 (link)) for MATLAB (The MathWorks, Natick, MA, USA) on an iMac computer with a 21-in. gamma-corrected Sony GDM-5402 CRT monitor with resolution of 1280 × 960 pixels and a refresh rate of 100 Hz. An infrared eye tracker system Eyelink 1000 (SR research, Kanata, Ontario, Canada) and a chin rest and head rest were used to ensure eye fixation at the center of the display throughout each trial in the experimental sessions. The viewing distance was 57 cm, and all experiments were performed with a gaze-contingent display in which the eye-tracker enabled new trials to start only once observers had fixated at the center (within a 2° radius fixation window). If an eye-movement outside of this window was detected at any point after the trial started, then that trial was aborted and added to the end of each block (~5% of the trials).
4
Eye-Tracking in Psychophysical Experiments
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The stimuli were presented using Psychophysics Toolbox [90, 91] for MATLAB (The MathWorks, Natick, MA) on an iMac computer with a 21" gamma-corrected Sony GDM-5402 CRT monitor with resolution of 1280 x 960 pixels and a refresh rate of 100Hz. An infrared eye tracker system Eyelink 1000 (SR research, Kanata, Ontario, Canada) and a chin rest and head rest were used to ensure eye fixation at the center of the display throughout each trial in the experimental sessions. The viewing distance was 57 cm, and all experiments were performed with a gaze-contingent display in which the eye-tracker enabled new trials to start only once observers had fixated at the center (within a 2° radius fixation window). If an eye-movement outside of this window was detected at any point after the trial started, then that trial was aborted and added to the end of each block (~5% of the trials).
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