This tutorial covers all aspects of an eye-tracking study from
experimental design to data analysis. As an example, we present an
eye-tracking study that investigates reading code vs. reading text.
First, we give an introduction to experimental design and the
preparation of an eye-tracking study using PsychoPy Builder. During a
hands-on session, participants will collect eye-movement data in
teams using Gazepoint eye trackers that will be provided. Finally,
the tutorial presents details of a Python-based gaze analytics
pipeline used to extract raw eye movement data, detect fixations via
velocity-based filtering, collate data for statistical evaluation,
analyze and visualize results using R. Attendees of the tutorial will
have an opportunity to run the scripts of an analysis of gaze data
collected from an example study. The tutorial covers basic eye
movement analytics, e.g., fixation count and dwell time within AOIs,
as well as advanced analysis using gaze transition entropy.
Presenters:
Andrew Duchowski, Clemson University, duchowski@clemson.edu
Andrew Duchowski is a professor of Computer Science at Clemson University. He received his baccalaureate (1990) from Simon Fraser University, Burnaby, Canada, and doctorate (1997) from Texas A&M University, College Station, TX, both in Computer Science. His research and teaching interests include visual attention and perception, eye tracking, computer vision, and computer graphics. He joined the School of Computing faculty at Clemson in January, 1998. He is a noted research leader in the field of eye tracking, having produced a corpus of papers and a textbook related to eye tracking research, and delivered courses and seminars on the subject at international conferences. He developed and maintains the eye tracking laboratory at Clemson University, and teaches a regular course on eye tracking methodology attracting students from a variety of disciplines across campus.
Nina Gehrer, University of Tubingen, nina.gehrer@uni-tuebingen.de
Nina Gehrer is is a postdoctoral researcher at the Department of Clinical Psychology and Psychotherapy at the University of Tübingen, Germany. She received her MSc in 2015 and completed her PhD in 2020. Her primary research interest focuses on biases in (social) information processing associated with psychological disorders (e.g., antisocial personality disorder, attention deficit hyperactivity disorder, eating disorders, etc.). In this context, she designed and conducted several eye-tracking studies over the last years. She gives courses in clinical psychology at the University of Tübingen and was co-presenter of tutorials on experimental design and gaze analytics at the ACM Symposium on Eye Tracking Research & Applications (in 2018, 2019, 2021, and 2022).
Krzysztof Krejtz, SWPS University of Social Sciences and Humanities, Poland, kkrejtz@swps.edu.pl
Krzysztof Krejtz is a psychologist at SWPS University of Social Sciences and Humanities in Warsaw, Poland, where he is leading the Eye Tracking Research Center. In 2017 he was a guest professor at Ulm University, in Ulm, Germany. He gave several invited talks at e.g., Max-Planck Institute (Germany), Bergen University (Norway), and Lincoln University Nebraska (USA). He has extensive experience in social and cognitive psychology research methods and statistics. In his research, he focuses on the use of eye tracking method and developing a second-order eye data-based metrics that may capture the dynamics of attention and information processing processes (transitions matrices entropy, ambient-focal coefficient K), dynamics of attention process in the context of Human-Computer Interaction, multimedia learning, media user experience, and accessibility. He is a member of the ACM Symposium on Eye Tracking Research and Application (ACM ETRA) Steering Committee.