“…By far the most used metric was simply the location of gaze, where researchers used the x and y positions of fixations or gazepoints, and not any higher order metrics, to trigger adaptations (Bektaş et al, , 2019Gobel et al, 2018;Ho et al, 2018;Jo et al, 2015;Kim et al, 2020;Kurzhals et al, 2020;Lankes et al, 2019Lankes et al, , 2020Sharma et al, 2016;Tateosian et al, 2017;Vidal et al, 2015). The total dwell time in an AOI has also been used to good extent (Cheng et al, 2018;Kim et al, 2020;Toreini et al, 2022).…”