Introducing Point-of-Interest as an alternative to Area-of-Interest for fixation duration analysis.

Many eye-tracking data analyses rely on the Area-of-Interest (AOI) methodology, which utilizes AOIs to analyze metrics such as fixations. However, AOI-based methods have some inherent limitations including variability and subjectivity in shape, size, location of AOIs. In this article, we propose an alternative approach traditional AOI dwell time analysis: Weighted Sum Durations (WSD). This decreases definitions by using Points-of-Interest (POI) while maintaining interpretability. WSD, durations fixations toward each POI is weighted distance from summed together generate a metric comparable time. To validate reanalyzed previously published study (n = 90). The re-analysis replicated original findings that people gaze less towards faces more points contact when viewing violent social interactions.