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    Design of Brain Computer Interface Based on Eye Movements
    (Kırıkkale Üniversitesi, 2020) Koç, Engin; Bayat, Oğuz; Göksel Duru, Dilek; Duru, Adil Deniz
    With the help of modern technology, people's reactions to stimuli byexamining the eye movements have become traceable. One of these measurementmethods is the Eye Tracking technique. The technical advancements of thistechnique enable researchers to carry out studies in the fields of health, warindustry, civil aviation, web design, digital media etc. that can enhance toimprove the quality of the systems that can make life easier. In the concept ofthis study, a brain computer interface (BCI) is developed by using the principalproperties of the eye tracking technology. Eye fixation information of thesubjects were measured by using the in-house developed experimental paradigmsoftware with the eye tracker while they were performing the required tasks.Two different experimental paradigm software were implemented. In the formerone, subjects were asked to fixate to the buttons that appeared on the screenand they were clicked when the subjects fixated on those buttons. In the latterone, a virtual keyboard was implemented where the subjects were asked to fixateon the characters in order to write words or sentences. Additionally, eyefixations were plotted with the use of heat maps. All of the methods and toolswere developed by our team. As a result, a hybrid BCI has been produced usingthe eye movements of subjects without performing a movement. The developedsoftware tools were applied and high values of instruction per minute wasobtained. Experimental results showed that the proposed methodology can be apioneering technology.