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Conference Object Citation - WoS: 1Citation - Scopus: 1Eye-Tracking To Enhance Usability: a Race Game(Springer international Publishing Ag, 2019) Ilhan, A. EzgiAn important field of research in human-computer interaction studies is the usability of computer games. This paper provides brief definitions of human-computer interactions and usability, and also describes the relevance of these interactions to computer games. Design decisions concerning game elements such as graphical user interface, feedback messages, position and the colour of functional buttons located on the game screen play an important role in identifying the usability and playability of computer games. This study uses eye-tracking technology in order to record eye movements to focus the action of "seeing", which reflects the inner world of humans. A managerial racing game was chosen as an example to analyse its usability. In this context, the design of the social race game was reviewed by recording eye movement data of the participants. The results of eye-tracking data were supported by user comments, which were finally used to improve the design and usability features of the game.Conference Object Citation - Scopus: 8Simulation-Based Environments for Surgical Practice(Institute of Electrical and Electronics Engineers Inc., 2017) Dalveren,G.G.M.; Çağıltay,N.E.; Özçelik,E.; Maraş,H.Modeling and simulation environments provide several insights about the real situations such as endoscopic surgery. Endoscopic surgery requires both hand skills, so, understanding the effect of using dominant or non dominant hand on mental workload is important to better design, develop and implement modeling and simulation environments to support real-life implementations of surgical procedures. This experimental study presents a simulation application of eye-tracking approach to understand mental workload in different hand conditions: dominant hand, non-dominant hand and both hand. The results of the study show that, performing simulated surgical tasks by both hands compared to dominant hand, increases mental workload which is evident by higher pupil size. Accordingly, to manage the mental-load problems of surgeons while performing complex tasks that require both hand usage simulation-based environments can be used. Consequently, collection of detailed information such as eye-data, can give several insights about the behaviors of the surgeons. Also, their required skills can be improved by development of simulation and training environments. © 2017 IEEE.Article Citation - WoS: 206Citation - Scopus: 240Why Does Signaling Enhance Multimedia Learning? Evidence From Eye Movements(Pergamon-elsevier Science Ltd, 2010) Ozcelik, Erol; Arslan-Ari, Ismahan; Cagiltay, KursatPrevious studies have suggested that signaling enhances multimedia learning. However, there is not enough evidence showing why signaling leads to better performance. The goal of this study was to examine the effects of signaling on learning outcomes and to reveal the underlying reasons for this effect by using eye movement measures. The participants were 40 undergraduate students who were presented with either signaled or nonsignaled multimedia materials. Labels in the illustration were signaled by temporarily changing the color of the items. The results suggest that the signaled group outperformed the nonsignaled group on transfer and matching tests. Eye movement data shows that signaling guided attention to relevant information and improved the efficiency and effectiveness of finding necessary information. (C) 2009 Elsevier Ltd. All rights reserved.
