Characterizing individual differences in task performance and task difficulty with gaze entropy

Methods • Gaze-specific parameters of attention allocation and information processing have been investigated through the use of traditional (dwell time, fixation rate, fixation duration, scan path length) and advanced gaze metrics (gaze entropy, common N-gram sequences, K-nearest neighbors) (Lounis et al., 2021) • These metrics have shown to be effective proxies of cognitive load, situational awareness, and performance in simulated aviation tasks (Peißl et al., 2018; Ziv, 2016) • Purpose: to examine the utility of a novel method of gaze analysis via entropy to objectively identify and characterize differences in task difficulty and performance in student pilots