silmänliikekuvaajien

Silmänliikekuvaajat, often translated as eye trackers, are devices that record the point of gaze or the motion of an eye relative to the head. They are used in a variety of research and applied settings to understand how people look at things, what they focus on, and how their eyes move when performing tasks. The technology works by tracking the reflections of infrared light off the eye's surface and pupils. Different types of eye trackers exist, including head-mounted and remote systems. Head-mounted trackers are worn by the user, offering high accuracy for individual movements. Remote trackers are placed at a distance from the user, making them less intrusive and suitable for observing natural interactions with displays or environments.

The data generated by eye trackers, known as gaze data, can be analyzed in various ways. This includes mapping fixation points (where the eye pauses for a noticeable period), saccades (rapid eye movements between fixation points), and pupil dilation, which can indicate cognitive effort or emotional arousal. Eye tracking has found applications in fields such as psychology, marketing, human-computer interaction, usability testing, and neuroscience. For instance, researchers use them to study reading patterns, visual attention during tasks, and the impact of visual stimuli on behavior. In usability testing, eye trackers help designers identify areas of a website or product that users are not noticing or are struggling to understand.