[Spatial and temporal characteristic of eye movement in human-computer interface design].
OBJECTIVE
To examine the related spatial and temporal characteristics of eye movement in HCI design and to provide ergonomic parameters to optimize the HCI design based on eye tracking.


METHODS
Task time, selected error and timeout numbers were recorded automatically, when 12 participants were performing the task of target selection, with different object size, space and dwell time.


RESULTS
It was significantly found that task time was influenced by object size and dwell time, the selected error was influenced by object space and dwell time significantly.


CONCLUSIONS
The dwell time, object size and object space are all important to optimize the HCI design based on eye tracking. We recommend that the dwell time should be 500 ms, the object size and object space should be not less than 1.5 degrees and 1.0 degrees respectively for the normal interactive systems.
Shen
Mo-wei
MW
Department of Psychology and Behavioral Science, Zhejiang University, Hangzhou, China. mwshen@zju.edu.cn
Feng
Cheng-zhi
CZ
Su
Hui
H
D000328:Adult; D003196:Computer Graphics; D003626:Data Display; D004867:Equipment Design; D006804:Ergonomics; D005133:Eye Movements; D005403:Fixation, Ocular; D006801:Humans; D011597:Psychomotor Performance; D013028:Space Perception; D013037:Spatial Behavior; D013647:Task Performance and Analysis; D013997:Time Factors; D014584:User-Computer Interface; D014796:Visual Perception