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The Use of Eye Tracking (Not Eye Control) in Cognitive Assessments and Eyegaze Clinics

Session 
2.2a
SRP
  • Hector Minto (Tobii Technology AB)
  • Heather Bovingdon
Summary

While the use of eyegaze as a physical access method to AAC and computing has become widespread, the use of eyetracking has not. In this session, we aim to demonstrate how eyetracking considerations influence AAC and computer access strategies.

Method/Activities/Techniques

The windows control element of an eyegaze system allows us to see the pure eye movements regardless of the content. By using eyetracking on photos and favourite movies, even without calibration, we gather large amounts of information on speed of processing, erratic eye movement, potential areas of visual neglect. A gaze evaluator is then used to confirm these findings.

Results/Findings

We will present the findings and video evidence from an assessment carried out in Kent using these guiding principles. The use of this technique led us to successfully calibrate a previously difficult assessment.

Conclusions

Eye tracking can be more widely used, not just in AAC assessments. An understanding of how to read eye tracking is something assessors and those working with cognitive impairment can benefit from.

Level of Session 
1
Age Group 
All Ages
Interest 
2
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