Eye tracking for interactive accessibility: a usability analysis of communication interfaces

Arslan, Kaan Sergen
At the late stages of ALS, i.e., Amyotrophic Lateral Sclerosis, individuals may lose their ability to speak, eat, move, and even breathe without ventilator support. Alternative modalities of communication, such as gaze, may have a potential to provide a communication interface that may increase the quality of life in cases as such. This study aims at developing interactive interfaces for gaze-based communication, and it reports a small-scale usability analysis for a comparison of the interfaces. In particular, we focus on two dimensions in the experimental investigation: The interface layout design and gaze recording interfaces. The interface layouts include a virtual QWERTY keyboard, an alphabetical one, as well as a cascades menu. The gaze recording interfaces include a wearable eye tracker and a webcam-based eye tracker. More generally, we focus on the role of the simplicity of the interface, the functionality of it, and the usability, which may be three contradicting aspects of interface design and development.


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Almus, Furkan Ginaz; Özer, Mehmet Bülent; Department of Mechanical Engineering (2022-8-26)
It is well known that physiological changes and diseases in the respiratory system affect the sound waves that form and propagate in the human body. The characteristics of these sound waves, such as frequency, amplitude, and phase, can contain critical and unique information about physiological changes and disorders. In this study, we aim to obtain a numerical model of the human respiratory system that can be used to understand the generation and propagation of acoustic waves within the human thorax and to ...
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Ertop, Tayfun Efe; Konukseven, Erhan İlhan; Koku, Ahmet Buğra; Department of Mechanical Engineering (2017)
Patients with disorders such as spinal cord injury, cerebral palsy and stroke can perform full gait when assisted, which progressively helps them regain the ability to walk. A very common way to create assistive effects is aquatic therapy. Aquatic environment also creates resistive effects desired for increasing muscle activity. Simulating the fluid environment using a robotic system would enable therapists to adjust various fluid parameters so that the therapy is tailored to each patient’s unique state. In...
Tissue Engineered, Guided Nerve Tube Consisting of Aligned Neural Stem Cells and Astrocytes
Yucel, Deniz; Kose, Gamze Torun; Hasırcı, Vasıf Nejat (2010-12-01)
Injury of the nervous system, particularly in the spinal cord, impairs the quality of life of the patient by resulting in permanent loss of neurologic function. The main limitation in spinal cord regeneration is the lack of extracellular matrix to guide nerves for functional recovery of the transected nerve tissue. In the present study, a tissue engineered nerve tube was prepared by wrapping neural stem cells (NSCs) on aligned fibers using a micropatterned film with astrocytes aligned along the microgrooves...
Association analysis of GSTT1, GSTM1 genotype polymorphisms and serum total GST activity with ischemic stroke risk
Turkanoglu, Aysun; Demirdogen, Birsen Can; Demirkaya, Seref; Bek, Semai; Adalı, Orhan (Springer Science and Business Media LLC, 2010-12-01)
Oxidative stress plays a major role in pathogenesis of atherosclerosis which is responsible for stroke. Glutathione S-transferases (GSTs) detoxify metabolites produced by oxidative stress within the cell and protect the cells against injury. This study aimed to investigate the association of polymorphisms in GSTT1, GSTM1 genes and GST activity with ischemic stroke risk. Patients had almost the same GST activity as that of controls. No significant differences were found between patients and controls in terms...
Flow-induced vibration analysis of constricted artery models with surrounding soft tissue
Salman, Huseyin Enes; Yazıcıoğlu, Yiğit (2017-10-01)
Arterial stenosis is a vascular pathology which leads to serious cardiovascular diseases. Blood flow through a constriction generates sound and vibration due to fluctuating turbulent pressures. Generated vibro-acoustic waves propagate through surrounding soft tissues and reach the skin surface and may provide valuable insight for noninvasive diagnostic purposes. Motivated by the aforementioned phenomena, vibration of constricted arteries is investigated employing computational models. The flow-induced press...
Citation Formats
K. S. Arslan, “Eye tracking for interactive accessibility: a usability analysis of communication interfaces,” Thesis (M.S.) -- Graduate School of Informatics. Cognitive Sciences., Middle East Technical University, 2020.