Gazedependent

Gazedependent is a term used in human-computer interaction, cognitive psychology, and display technology to describe processes, systems, or effects that depend on where a person is looking. In gaze-dependent designs, eye-tracking data from the observer's gaze location and fixation sequence is used in real time to adapt output or interaction.

Applications include gaze-contingent displays and foveated rendering in VR and AR, where rendering resources or visual fidelity are concentrated around the fovea to optimize performance; in experimental psychology, gaze-dependent paradigms present stimuli contingent on gaze to study attention, perception, and memory; in market research, gaze data informs which elements attract attention.

Technologies and methods: Eye-tracking hardware (IR-based, video-oculography), calibration, latency considerations; real-time gaze mapping to display coordinates; implementation of gaze-contingent rendering (e.g., dynamic blur or resolution in the periphery); data analysis metrics such as fixation duration, dwell time, saccade amplitude.

Limitations and considerations: system latency can limit perceptual invisibility of gaze changes; calibration drift; individual differences in gaze behavior; privacy concerns with eye-tracking data; cost and integration complexity.

Relation to related terms: gaze-contingent, foveated rendering, eye tracking; while related, gazedependent emphasizes the dependence of a process on gaze location.