The experiment was controlled by MATLAB 2012a (Math-Works, Natick, MA, USA) with Psychophysics Toolbox extensions (Brainard, 1997 (link); Pelli, 1997 (link); Kleiner et al., 2007 ) on a desktop computer (Apple Mac mini). The visual stimuli were projected on a 22-inch cathode ray tube (CRT) monitor (Mitsubishi RDF223G; monitor resolution = 1280 × 960 pixels, refresh rate = 90 Hz). Reaction times (RTs) were measured using a response time box (Li et al., 2010 (link)). Two digital video cameras mounted on tripod stands were used during the videotaped condition. One of the cameras was placed in front of the participant, and the other was placed behind him/her (Figure 1 ). The front camera did not interfere with the participant’s view of the display.
Rdf223g
Manufactured by Mitsubishi
The RDF223G is a versatile laboratory equipment designed for a range of scientific applications. It features a compact and durable construction, providing a reliable and efficient solution for various laboratory tasks. The core function of the RDF223G is to perform precise measurements and data collection, making it a valuable tool for researchers and scientists.
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Lab products found in correlation
4 protocols using rdf223g
1
Multisensory Perception Experiment Setup
2
Calibrated CRT Monitor Display Protocol
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Stimuli were displayed on a calibrated CRT monitor, 19-inch Mitsubishi Diamondtron RDF223G. The monitor was set to a spatial resolution of 1024 × 768 pixels and a refresh rate of 60 Hz. The luminance values for each color channel were measured with a luminance colorimeter BM-7 (TOPCON) and linearized. Psychtoolbox extensions (Brainard & Vision, 1997 (link)) were used for stimulus display and data collection in Matlab (Mathworks, Inc.). Subjects sat 37 cm away from the screen, using a chin rest to stabilize the head position.
3
Video-Based Eye Tracking System Protocol
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The observers sat 57 cm in front of a CRT monitor (22-inch, RDF223G, Mitsubishi, refresh rate: 60 Hz, spatial resolution: 800 × 600 pixels, background luminance: 60 cd/m 2 ) with head stabilized by a chin rest and a forehead restraint. Eye movements from the right eye were detected using a video-based eye tracking system (Matsuda et al. 2017; Miyamoto et al. 2020; Ono et al. 2019) . The eye position signals detected by the system were digitized at 1 kHz with 16-bit precision using CED-Micro 1401 hardware (Cambridge Electronic Designs, Cambridge, England). Prior to the task, the eye position signals were calibrated by requiring the observers to fixate a target spot (diameter of 0.3 deg) at known horizontal and vertical eccentricities in binocular viewing condition. The target consisted of a white Gaussian dot (SD: 0.15 deg) on a uniform black background. All the visual stimuli were generated by Psychophysics Toolbox extensions on MATLAB (Mathworks, MA, US).
4
CRT Monitor Presentation and Response Recording
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The stimuli were presented on a 22-in. CRT monitor (RDF223G, Mitsubishi). A computer (Vostro 220s, Dell) was used to control the presentation of the stimuli and to record responses that the observers made by pressing assigned keys. The observers' heads were held in position with a forehead and chin rest.
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