Literature

Basic texts( theory and modeling)

A number of journals deal with eye tracking. These provide insight into the current state of research.

Eye-tracking researchers who, among other things, are working towards achieving standardization have joined forces in the COGAIN Association. The association also provides the latest research findings and developments in the field of research.

Alignment:

The ideal distance and alignment for the Tobii Pro X2-60 eye tracker used here are specified in this report (PDF).

Calibration:

Correct calibration is necessary to verify the validity of the eye tracking for your research. The following publication includes a comparison of various calibration processes.

Nyström et al (2012): The influence of calibration method and eye physiology on eye-tracking data quality (PDF)

Tracking 60 Hz:

The eye trackers used in the WISO Experimental Lab work at a frequency of 60 Hz. Details on the influence of this higher speed can be found here:

Richard Andersson, Marcus Nyström, Kenneth Holmqvist (2010): Sampling frequency and eye-tracking measures: how speed affects durations, latencies, and more.

Heat mapping:

Heat maps are a visualization instrument for quantitative eye-tracking studies that displays the distribution of the viewing behavior of several test subjects. They seem easy to create but they are controversial, as they can easily be misinterpreted. This article describes the correct use of heat maps:

Bojko A. (2009). “Informative or Misleading? Heatmaps Deconstructed”, in: Human-Computer Interaction (PDF)

Gaze plots:

Gaze plots are a visualization instrument for qualitative eye-tracking studies. They enable the viewing behavior of one or a few test subjects to be depicted. They are also used to form hypotheses. An educational article that describes the work methods using gaze plots and heat maps can be found on our homepage.

Eye-tracking as a proxy for attention:

Just & Carpenter (1980): A theory of reading: From eye fixations to comprehension