Eye gaze tracking is the process of tracing and measuring the motion of the eye relative to the head (i.e., the direction in which one is looking). Eye gaze tracking is a common technique used to objectively measure a user?s attention and responses to information presented to them. In particular, we believe that eye gaze tracking can be used to gauge the effectiveness of different visualization styles that have been augmented to support analyst decision making. However, assisting the analyst in connecting with augmented visualizations can be challenging if the information is not presented in a clear and concise way. An empirical study that seeks a correlation between visual augmentation style and decision effectiveness will produce insights into the factors that affect the task. These insights will lead to techniques that help analysts filter vast amounts of information so that they can make informed decisions about critical matters in a timely fashion. This study proposes to use eye gaze tracking techniques to measure whether link line thickness can be used to visually increase situational awareness, thus allowing analysts to make decisions more rapidly.
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