Evaluation of an eye tracking setup for studying visual attention in face-to-face conversations
- Many eye tracking studies use facial stimuli presented on a display to investigate attentional processing of social stimuli. To introduce a more realistic approach that allows interaction between two real people, we evaluated a new eye tracking setup in three independent studies in terms of data quality, short-term reliability and feasibility. Study 1 measured the robustness, precision and accuracy for calibration stimuli compared to a classical display-based setup. Study 2 used the identical measures with an independent study sample to compare the data quality for a photograph of a face (2D) and the face of the real person (3D). Study 3 evaluated data quality over the course of a real face-to-face conversation and examined the gaze behavior on the facial features of the conversation partner. Study 1 provides evidence that quality indices for the scene-based setup were comparable to those of a classical display-based setup. Average accuracy was better than 0.4° visual angle. Study 2 demonstrates that eye tracking quality is sufficient for 3D stimuli and robust against short interruptions without re-calibration. Study 3 confirms the long-term stability of tracking accuracy during a face-to-face interaction and demonstrates typical gaze patterns for facial features. Thus, the eye tracking setup presented here seems feasible for studying gaze behavior in dyadic face-to-face interactions. Eye tracking data obtained with this setup achieves an accuracy that is sufficient for investigating behavior such as eye contact in social interactions in a range of populations including clinical conditions, such as autism spectrum and social phobia.
Author: | Antonia Vehlen, Ines Spenthof, Daniel Tönsing, Markus Heinrichs, Gregor Domes |
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URN: | urn:nbn:de:hbz:385-1-18074 |
DOI: | https://doi.org/10.1038/s41598-021-81987-x |
Parent Title (English): | Scientific Reports |
Publisher: | Springer Nature |
Place of publication: | Lomdon |
Document Type: | Article |
Language: | English |
Date of completion: | 2021/01/29 |
Date of publication: | 2021/01/29 |
Publishing institution: | Universität Trier |
Contributing corporation: | The publication was funded by the Open Access Fund of Universität Trier and the German Research Foundation (DFG) |
Release Date: | 2022/03/14 |
Tag: | Behavioural methods; Human behaviour |
GND Keyword: | Aufmerksamkeit; Augenfolgebewegung; Evaluation; Interaktion; Interpersonale Kommunikation; Visuelle Aufmerksamkeit |
Volume (for the year ...): | 2021 |
Issue / no.: | Band 11 |
Number of pages: | 16 |
Institutes: | Fachbereich 1 / Psychologie |
Dewey Decimal Classification: | 1 Philosophie und Psychologie / 15 Psychologie / 150 Psychologie |
Licence (German): | CC BY: Creative-Commons-Lizenz 4.0 International |