A new eye tracking concept – Blinks
Blinks can now be detected from the eye openness data with Tobii Pro Spectrum and Fusion (120 Hz) eye trackers. Tobii Pro Lab’s blink detection follows an independently developed and validated algorithm (Nyström et al., 2024). Blinks detected from the eye openness (i.e., eyelid tracking) signal allow to compute detailed blink metrics, such as amplitude, duration and velocity, unlike blink detection methods based on data loss, which only indicate whether blinks are present or absent or their duration. The ability to detect blinks offers valuable insights into fields ranging from psychology and neuroscience to human factors and consumer insights. Ready-to-analyze blink metrics, including the number of blinks, duration, and amplitude, can be visualized in replay module and exported in metrics export module. Explore further the potential of blinks in our
Human Factors white paper and Cognitive Psychology and Neuroscience white paper.
New and improved visualization features:
Opacity map. Opacity maps allow for a simpler and cleaner way of showing where a participant was looking without colors that need interpreting.
Grouped data display. This new feature color-codes gaze visualizations based on participant variables, enabling quick comparisons between groups. It is ideal for visualizing group-level differences in gaze patterns.
Hover text. In scan path and bee swarm, hover over a fixation point with the mouse to get more information about it, for example, its duration and index.
AOI layer. Choose to visualize AOIs, their names, and tag information with the media and gaze.
Stacked interval mode. Combine multiple visits to the same media (e.g., a webpage section) into one continuous visual representation. Instead of showing each visit separately, the visits are “stacked,” making it appear as one long visit for more straightforward analysis.
Participant data selection. Recordings can now be quickly selected via the participant variables they are associated with.
Performance improvement. Visualizations have been further optimized to work better with larger projects.