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Device-Embedded Cameras for Eye Tracking–Based Cognitive Assessment: Validation With Paper-Pencil and Computerized Cognitive Composites

Device-Embedded Cameras for Eye Tracking–Based Cognitive Assessment: Validation With Paper-Pencil and Computerized Cognitive Composites

In a previous study, Zola and colleagues used an Applied Science Laboratories eye tracker that recorded gaze data at 120 Hz (120 frames per second) [12]. To replicate the cluster-based algorithm used by Zola et al [12], a fixation filter to process the raw Tobii data was developed [21]. Three researchers with expertise in eye-tracking behavior and the Tobii X2-60 eye tracker system independently inspected all test trials to ensure the quality of test data.

Nicholas Thomas Bott, Erica N Madero, Jordan Glenn, Alexander Lange, John Anderson, Doug Newton, Adam Brennan, Elizabeth A. Buffalo, Dorene Rentz, Stuart Zola

J Med Internet Res 2018;20(7):e11143