A Study on Visual Search during the Trail Making Test: Analysis Using an Eye Tracker
| Autor: | Kazumasa Yamada, Daisuke Kimura, Aiko Imai, Hiroki Bizen, Masako Notoya, Taro Ohtoshi |
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| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | Neuroscience and Medicine. :116-122 |
| ISSN: | 2158-2947 2158-2912 |
| DOI: | 10.4236/nm.2018.93012 |
| Popis: | The Trail Making Test A (TMT-A) is a task related to visual search. Therefore, performance in the TMT-A has a high possibility of being influenced by visual information, such as the arrangement of numbers. The purpose of this study was to measure eye movements during the TMT-A using an eye tracker, to analyze differences in enforcement and trace execution, and to examine appropriate inspection drawings as visual search tasks. Study 1 was performed in 14 young healthy subjects and Study 2 was performed in 6 young healthy subjects. The English and Japanese versions of the TMT-A were administered as usual and the subjects performed the traces in a sitting position. The eye movements of the subjects were measured during the task. We analyzed the combined motion angles of both eyes. We compared the average values (30 Hz/s) of movement in the horizontal (X-axis) and vertical (Y-axis) directions during the normal administration of the English and Japanese version of the TMT-A. We also compared the traces performed by the subjects. There were no differences in tracing or enforcement in the English version of the TMT-A. Especially in the vertical visualization operation, it was shown that the normal enforcement was fewer than the tracing, and almost no up-to-down search was performed. In contrast, the subjects performed visual searches in all directions during the Japanese version of the TMT-A. |
| Databáze: | OpenAIRE |
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