Karyn Moffatt

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Slipping while clicking and accidental clicks are a source of errors for mouse users with motor impairments. The Steady Clicks assistance feature suppresses these errors by freezing the cursor during mouse clicks, preventing overlapping button presses and suppressing clicks made while the mouse is moving at a high velocity. Evaluation with eleven target(More)
In this paper, we describe the design and preliminary evaluation of a hybrid desktop-handheld system developed to support individuals with aphasia, a disorder which impairs the ability to speak, read, write, or understand language. The system allows its users to develop speech communication through images and sound on a desktop computer and download this(More)
We introduce ephemeral adaptation, a new adaptive GUI technique that improves performance by reducing visual search time while maintaining spatial consistency. Ephemeral adaptive interfaces employ gradual onset to draw the user's attention to predicted items: adaptively predicted items appear abruptly when the menu is opened, but non-predicted items fade in(More)
Aphasia is a cognitive disorder that impairs speech and language. From interviews with aphasic individuals, their caregivers, and speech-language pathologists, the need was identified for a daily planner that allows aphasic users to independently manage their appointments. We used a participatory design approach to develop ESI Planner (the Enhanced with(More)
This paper presents the results of a study to gather information on the underlying causes of pen -based target acquisition difficulty. In order to observe both simple and complex interaction, two tasks (menu and Fitts' tapping) were used. Thirty-six participants across three age groups (18-54, 54-69, and 70-85) were included to draw out both general(More)
This paper explores a number of HCI research issues in the context of the Aphasia Project, a recently established project on the design of assistive technology for aphasic individuals. Key issues include the problems of achieving effective design and evaluation for a user population with an extremely high degree of variance, and user-centered design for a(More)
Cooking is a daily activity for many people. However, traditional text recipes are often prohibitively difficult to follow for people with language disorders, such as aphasia. We have developed a multi-modal application that leverages the retained ability of aphasic individuals to recognize image-based representations of objects, providing a presentation(More)
Computer technology has become ubiquitous in today’s society and many daily activities depend on the ability to use and interact with computer systems. Most computer technology, however, is currently designed for the “average” user, and thus ignores substantial segments of the population excluding them from many common activities. The goal of our research(More)
In this paper we describe TableTalk Poker, an online social gaming environment designed for seniors. In addition to text chat among all the players, the system supports voice conversations between each player and a non-playing partner, who may assume various roles such as peer, mentor, or learner. This paper reports on our user-centred design process, which(More)