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| Content Provider | ACM Digital Library |
|---|---|
| Author | Nakayama, Minoru Takahashi, Koji Shimizu, Yasutaka |
| Abstract | Eye movement reflects a viewer's visual information process. This study examines whether eye-movement responds to the viewer's cognitive load. It is already known that pupil size and blink can use as an indicator of mental workload. Saccades are rapid eye movements to turn a fovea to a focusing target. For this process, saccade was extracted to observe viewing process.The ocular-following task was conducted with audio-response task. The moving target was controlled at visual angle 3deg 5deg and 10deg. Audio response task required oral response. Experimental results showed that pupil size and blink rate increased with visual angle and audio response task. Both increased largest when the subject gave incorrect response in audio response task.Eye movement was also controlled by certain factors. Saccadic movement time increased with visual angle and it had negative correlation to blink time. This relationship was observed in larger visual angle, but despite of this negative correlation, saccadic movement time increased in incorrect response. Furthermore saccade length increased with the visual angle and decreased in incorrect response.The saccade is divided into miniature saccade appearing in gaze area, and larger saccade appearing between gazes. In incorrect response, saccade in following targets decreased and saccade inside gazing targets increased. It suggests that saccade occurrence changes not only in following targets but also inside gazing targets. The results of these experiments provide evidence that eye-movement can be an index of mental work-load. |
| Starting Page | 131 |
| Ending Page | 138 |
| Page Count | 8 |
| File Format | |
| ISBN | 1581132808 |
| DOI | 10.1145/355017.355043 |
| Language | English |
| Publisher | Association for Computing Machinery (ACM) |
| Publisher Date | 2000-11-08 |
| Publisher Place | New York |
| Access Restriction | Subscribed |
| Subject Keyword | Pupil size Gaze Eye-movement Saccadic eye-movement Blink |
| Content Type | Text |
| Resource Type | Article |
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