Head-mounted displays and dynamic text presentation to aid reading in macular disease

The majority of individuals living with significant sight loss have residual vision which can be enhanced using low vision aids. Smart glasses and smartphone-based headsets, both increasing in prevalence, are proposed as a low vision aid platform. Three novel tests for measuring the visibility of displays to partially sighted users are described, along with a questionnaire for assessing subjective preference. Most individuals tested, save those with the weakest vision, were able to see and read from both a smart glasses screen and a smartphone screen mounted in a headset. The scheme for biomimetic scrolling, a text presentation strategy which translates natural eye movement into text movement, is described. It is found to enable the normally sighted to read at a rate five times that of continuous scrolling and is faster than rapid serial visual presentation for individuals with macular disease. With text presentation on the smart glasses optimised to the user, individuals with macular disease read on average 65% faster than when using their habitual optical aid. It is concluded that this aid demonstrates clear benefit over the commonly used devices and is thus recommended for further development towards widespread availability

A visually enhanced programming environment

Thesis (M.S.V.S.)--Massachusetts Institute of Technology, Dept. of Architecture, 1990.Includes bibliographical references (leaves 51-53).by Ming Chen.M.S.V.S

Experiences of Middle School Students With Visual Impairments Accessing Technologies In Inclusive Classrooms

As the educational environment is moving more towards a technology-rich system, students with visual impairments (VI) educated in general education classrooms must be guaranteed equitable access to content curricula. The purpose of this study was to understand the experiences of middle school students with VI when accessing and using technologies in general education classrooms. In this multiple case study, three middle school students with VI were observed in general education settings for two school days. In addition to the students, general education teachers and teachers of students with VI (TVI) also participated in the study to understand how best they support access to technologies for students with VI in their classrooms. The theoretical framework that guided this study was Piaget’s cognitive development theory, and the learning model was Universal Design for Learning. Data were collected through multiple instruments: observations, interviews, and educational documents. Students, their general education teachers, and TVIs were interviewed about their experiences with the use of technologies in classrooms. After data collection, the analysis was completed using within-case and cross-case analysis. The within-case analysis revealed the experiences of using technologies in general education classrooms for each student in the form of a narrative story. Each student’s story included the components: (a) how did they see their world?, (b) how did they experience their school day?, and (c) how did their ideal world compare to their real world? The cross-case analysis was conducted by comparing participants’ experiences with technologies in general education classrooms. Four broad themes emerged from the cross-case analysis: (a) technology is imperative in general education classrooms; (b) frustrations with accessibility issues in general education classrooms; (c) for general education teachers, it has been a learning curve; and (d) for TVIs, the buck stops with them when it comes to access technology. Within the above four broad themes, some emerged findings were intriguing. General education teachers were open to training on technologies that are more engaging for students, as opposed to technologies that were universally accessible. Inaccessible technologies used in classrooms were not only the ones adopted by the school or district, but they included programs that were created and shared by other teachers through learning communities. While the students, general education teachers, and TVIs in this study understood the legal mandates of IDEA and an IEP, they did not know any other accessibility laws related to technologies that Kindergarten-Grade 12 schools should abide by. Conceptually, some sub-themes found in this study were: (a) the majority of educators were differentiating the curricula to meet the needs of students through constant adaptation as opposed to using tools that account for learner variability at the outset, and (b) student choice and advocacy played a big role in the experiences of students with VI in general education classrooms. Based on the findings, implications for practice and future research directions are discussed in this study

Rekindling the love of books - a pilot project exploring whether e-readers help people to read again after a stroke

Background E-readers may facilitate reading in aphasia through “aphasia-friendly” features such as altering text size and formatting (Worrall et al, 2005), and text-to-speech functions. However, no previous research has examined whether e-readers help people with aphasia to read. Aims This project explored: • whether people with aphasia can learn to use e-readers following a brief period of training • whether e-reader training improves reading comprehension • whether e-readers increase participation in and enjoyment of reading activities Method and procedures In phase one, available e-readers were compared using an expert evaluation against a set of criteria, to identify the model with optimum accessibility features and fewest potential barriers. The Kindle Keyboard 3G TM (Amazon) was selected for trialling in phase two. Four people with self-reported reading difficulties post-stroke participated in phase two. All had mild or mild-moderate aphasia. Four one-hour training sessions aimed to trial accessibility features, identify helpful features, and teach independent operation of these. A repeated measures design was used. Outcome measures assessed reading comprehension (Gray Oral Reading Tests, Bryant & Wiederholt, 2001) and confidence and emotions associated with reading (Reading Confidence and Emotions Questionnaire, Cocks et al., 2013). Matched texts were used to compare reading comprehension using printed texts and the e-reader. Usability evaluations explored independence in e-reader use and acceptability of the technology. Participation in reading activities and reading enjoyment were explored using qualitative exit interviews. Outcomes and results Participants’ reading comprehension on the Kindle, as measured by the GORT-4, did not improve following training and did not exceed comprehension of printed texts. However, reading confidence improved significantly for three of the participants (RCEQ: p<.05, p<.01 and p<.005). Analysis of exit interviews and usability evaluations indicates that three out of four participants preferred reading on the Kindle to printed texts. These participants read more frequently on the Kindle than they had done before the training, and the technology enabled them to access more challenging texts (e.g. novels). They appreciated different features of the Kindle. Two participants experienced difficulties operating the technology, one of whom would have benefited from a longer training period. Conclusions This pilot study suggests that a short block of e-reader training led to improvements in reading confidence, participation and enjoyment. E-readers were not shown to enhance reading comprehension. Larger-scale investigations are warranted to further investigate whether and how e-readers facilitate reading for people with aphasia

Visual Debugging of Object-Oriented Systems with the Unified Modeling Language

The Department of Defense (DoD) is developing a Joint Battlespace Infosphere, linking a large number of data sources and user applications. Debugging and analysis tools are required to aid in this process. Debugging of large object-oriented systems is a difficult cognitive process that requires understanding of both the overall and detailed behavior of the application. In addition, many such applications linked through a distributed system add to this complexity. Standard debuggers do not utilize visualization techniques, focusing mainly on information extracted directly from the source code. To overcome this deficiency, this research designs and implements a methodology that enables developers to analyze, troubleshoot and evaluate object-oriented systems using visualization techniques. It uses the standard UML class diagram coupled with visualization features such as focus+context, animation, graph layout, color encoding and filtering techniques to organize and present information in a manner that facilitates greater program and system comprehension. Multiple levels of abstraction, from low-level details such as source code and variable information to high-level structural detail in the form of a UML class diagram are accessible along with views of the program s control flow. The methods applied provide a considerable improvement (up to 1110%) in the number of classes that can be displayed in a set display area while still preserving user context and the semantics of UML, thus maintaining system understanding. Usability tests validated the application in terms of three criteria software visualization, debugging, and general system usability

Visualizing bird migration: highlighting the relationship between migratory birds and the Toronto region through graphic design practice

Bird migration phenomenon takes place many thousands of meters above the ground and between distant locales and therefore remains largely invisible to human observers. The goal of this thesis project is to bring migration into focus by using environmental graphic design installations that highlight Toronto's role as a stopover site for migratory birds and activating a site on the city's waterfront. The final design artifact is composed of three site-specific elements. The first is a wall-mounted graphic work that functions like a sundial to reveal the cyclical nature of seasonal migration. The second is a boardwalk installation that measures the distances travelled by birds migrating from Central and South America to Toronto. The final component is a map of the primary avian stopover sites in Toronto (hot spots), which encourages visitors to explore the city's natural habitats. This thesis offers examples of how graphic design can go beyond traditional awareness campaign tactics to call attention to natural processes in the environment in order to create meaningful connections between citizens and the natural world. Therefore the role of design in facilitating human connection to natural cycles is of paramount importance

When the Disability Is Not the Problem - Experiencing the Barriers to Web Accessibility: The Experiences of Computer Users with Visual Disabilities Using the Internet

The purpose of this study is to describe the experiences and perceptions of three computer users with visual disabilities as they accessed and reviewed Web pages on the Internet. Attention is focused on the use of the Internet by individuals with visual disabilities: blindness, low vision, and deaf/blindness. Data were gathered through interviews and observation, during eight sessions with each participant. Data were qualitatively analyzed using an inductive process (Hatch, 2002). Data analysis revealed six categories of meaning: interactions with computer; personal characteristics, strategies to find solutions to barriers encountered; personal feeling and opinions; design features, and communication. Sites viewed included commercial, educational, non-profit, and governmental sites. Interviews consisted of structured and unstructured questions. The knowledge gained in this study will add to the literature of Web Accessibility and will contribute to raising awareness of the barriers that computer users with visual disabilities encounter when using the Internet