Many researches have been performed on eye tracking technology and its major researches include mobile UI measurement, navigation, internet web measurement, measurement of TV concentration. However, a research on evaluating concentration of mobile gamer has not been performed so far. In this study, a possibility of being able to provide mobile game designer with data for concentration measurement was verified by measuring concentration of mobile gamer based on GazePlot, HeatMap, Cluster by utilizing eye tracking technology. In addition, based on the result of measuring eye tracking experiment, several advantages for objectivity, differentiation and complementarities of eye tracking technology were suggested. In order to measure suggested experiment result, an experiment was performed by using eye tracking system software (Tobii Mobile Device Stand for 2x2) and data, graph that could be utilized as reference data at the time of game development in the future were presented by identifying concentrated part and not concentrated part in playing a game after measuring concentration by each age group.

Recently, the technology for smart phones has shown a quantum leap so the market share of mobile games is gradually increasing. User Interface(UI) is a crucial factor in the success of a mobile game. Thus, the mobile game UI evaluation is undoubtedly important. Currently, survey and heuristic evaluation methods are widely used in terms of evaluation. However, these methods have not been proven to show the user experiences. This study suggests a new method using ‘eye tracking’ technology which focuses on where on the mobile screen the user concentrates the most, where the user shows the most interest and how the user’s eyes move on the screen. Experiments have been conducted to verify the availability of eye tracking technology along with the differences between the traditional methods and the eye tracking method.

This study employed the eye-tracking method to investigate the nature of game players' visual attention on the game's GUI(graphic user interface) elements during game play. The genre of the game (shooting and driving games), the points of view of the game (1st person vs. 3rd person POV), and the game player's proficiency were taken into account to examine their effects on the game player's visual attention. A within-between subject experimental study was conducted (N=26). The results illustrate that the game genre was not a meaningful predictor for neither the frequency or the total duration of visual element per interface element. The point of view had a significant main effect on the game player's frequent change of their eye movement across different elements. The proficiency of game player's gaming skill significantly altered the game player's frequency and duration of visual attention. Proficient gamers were more efficient in distributing their visual attention across various elements of the GUI.