Abstract
This paper describes the use of the Levenshtein distance and nearest neighbour index to visualise and analyse differences
in eye-tracking scanpaths applied to the field of electrocardiology. Data was obtained from clinicians as they interpreted 12-lead
electrocardiograms (ECGs). The main aim of the work is provide methods of visualising the differences between multiple participants
scanpaths simultaneously. Allowing us to answer questions such as, do clinicians fixate randomly on the ECG, or do they apply a
systematic approach? Results indicate that practitioners have very different search strategies applied to the majority of stimuli. The
distribution of fixations is not random and tends towards clustering with all stimuli. The differences between practitioners are likely to be
the result of different training, clinical role and expertise.
in eye-tracking scanpaths applied to the field of electrocardiology. Data was obtained from clinicians as they interpreted 12-lead
electrocardiograms (ECGs). The main aim of the work is provide methods of visualising the differences between multiple participants
scanpaths simultaneously. Allowing us to answer questions such as, do clinicians fixate randomly on the ECG, or do they apply a
systematic approach? Results indicate that practitioners have very different search strategies applied to the majority of stimuli. The
distribution of fixations is not random and tends towards clustering with all stimuli. The differences between practitioners are likely to be
the result of different training, clinical role and expertise.
| Original language | English |
|---|---|
| Number of pages | 5 |
| Publication status | Published - 23 Oct 2016 |
| Event | ETVIS 2016 - Second Workshop on Eye Tracking and Visualization - Baltimore, Maryland, United States Duration: 23 Oct 2016 → 28 Oct 2016 |
Conference
| Conference | ETVIS 2016 - Second Workshop on Eye Tracking and Visualization |
|---|---|
| Country/Territory | United States |
| City | Baltimore, Maryland |
| Period | 23/10/16 → 28/10/16 |
Keywords
- eye-tracking, visualisation, Levenshtein, scanpaths, electrocardiogram, ECG, EKG