Access to Eye-Gaze Control Technology for Children with Cerebral Palsy

Children with cerebral palsy (CP), whose disability may limit speech production and motor skills, are often considered good candidates for the use of eye-gaze technology to access communication, learning and play. At present, little is known about the skills needed to control this technology, which can make it difficult for clinicians to make decisions, or to manage expectations around progress. This is further complicated by the emergence of “teaching” software packages, claiming to improve basic skills such as cause and effect. Children with CP are known to be at a higher risk of vision disorders, including those related to functional vision – how a child functions in vision related activities. These skills (in particular fixation and gaze switching) are similar to those required to make use of eye-gaze technology, so are likely to impact on children’s performance. This thesis uses typically developing children to provide baseline information and to observe how they respond to tasks which were incrementally lowered in terms of cognitive demand. Over three rounds of experiments a pattern emerged that children aged 32 months were able to use it with only minimal instruction. The impact of teaching on performance was also investigated in this section of the study. A group of children with CP were recruited to investigate the most effective way of assessing functional vision skills in this group, with results indicating behavioural measures were most effective. A final study with children with CP used the activities above to look at the performance of this group on eye-gaze tasks. Results suggested good functional gaze control skills were related to better performance on a novel eye-gaze task. The findings suggest that some children may be at a “developmental advantage” if their functional vision and cognitive skills are more developed

Designing Video Games and Interactive Applications to Enhance Learning in Children with Autism Spectrum Disorders

Autism Spectrum Disorders (ASD) are a group of developmental neuropsychiatric disorders that can be highly variable in their intensity and in the types of symptoms displayed among different people. Over the years, various intervention techniques using computer-based or computer-assisted therapy have been explored to help individuals with autism in their everyday lives. This paper proposes a set of special guidelines for developing computer-based interactive applications and games to assist learning in children on the autism spectrum. The guidelines proposed here form a framework of interactive and adaptive techniques to be employed in designing computer games and applications that can be used to enhance various aspects of learning and development in children on the autism spectrum. These guidelines are based on the learning activities and other peer-to-peer interactions employed by teachers in inclusive classrooms which help optimize learning in a classroom environment. Other sources of game design considerations include prior research on the limitations encountered by children with ASD in motion, sensory perception, communication and cognition. Prior and ongoing research relating to their abilities in these particular areas are also utilized in this study as important factors in designing the interactive applications and games. Lastly, studies regarding the use of technologies and augmented communication devices are used to help outline the necessary mediums of delivery for the games and applications. The guidelines created in this study are introduced to parents and researchers of children on the autism spectrum through a survey in which these participants are asked to evaluate the techniques and technologies presented in this paper. This research delves into one of the new areas of exploration that have a huge potential in intervention techniques for children with ASD. It is expected that the outlines developed here will offer helpful insight into design and development for future efforts and advancements in gaming technologies for children with ASD

Effect of adapted phonic faces story books on phonological skills of children with severe expressive language disorders

Although No Child Left Behind (2001) encourages the inclusion of all children within the regular curriculum, children with severe speech and physical disabilities rarely are provided with the literacy education provided to grade-level peers. This study taught alphabetic skills to three children with severe speech and physical impairments in the context of traditional alphabet books versus Phonic Faces Storybooks. Both storybooks were converted into e-books using Microsoft Office PowerPoint (Microsoft Office, 2003) and accessed using a single rocking lever switch. Two graphemes were selected based on incorrect responses from the pretest administration of the The Phonological Awareness Test (Roberson & Salter, 1997). The three subjects were exposed to the target graphemes using an ABAB design where the treatment conditions were reversed following the second baseline period. Five probes assessing phonological and grapheme awareness skills for targeted graphemes were administered following each baseline and intervention session. Results revealed greater improvements on letter/sound identification, sound to letter identification, identification of letter names, and identification of location of letters and sounds in all word positions words for all three subjects during the Phonic Faces Storybook phases. Improvement was also seen in the pre and posttest scores on seven subtests (rhyming, deletion, substitution, isolation, segmentation, blending and graphemes) of The Phonological Awareness Test (Roberson & Salter, 1997) and on word recognition, and silent and oral reading on the Informal Reading Inventory (Burns & Roe, 2006). Anecdotal evidence also demonstrated eagerness to work on the computer, preference for Phonic Faces e-books vs. alphabet books, and an increase in speech production (imitation of speech sounds). Limitations of the study, which include a small number of subjects and use of a small number of sounds need to be addressed in future research studies

The Effects of Word Prediction on Writing Fluency for Students with Physical Disabilities

Writing is a multifaceted, complex task that involves interaction between physical and cognitive skills. Individuals with physical disabilities vary in terms of both their physical and cognitive abilities. Often they must overcome one or more significant barriers in order to engage in the task of writing. Minimizing or eliminating barriers is important because opportunities are greater for individuals who can effectively communicate their ideas via writing. Assistive technology (AT) is an increasingly effective solution to increase typing fluency. The purpose of this study is to examine if word prediction software, a commonly used software program used with individuals with learning disabilities, will be effective for those with physical impairments to increase typing rate and reduce spelling errors (fluency). Data will be collected for words correct per minute (WCPM) and errors (e.g., spelling). Four middle- or high school-aged participants with diverse physical disabilities will be recruited in this single subject, alternating treatment design. Participants will type for three-minute timed sessions using either a standard word processor or Co:Writer 4000, a word prediction software program. Specific research questions are: (a) to what extent will students with physical and health disabilities produce greater WCPM when writing a draft paper on a common topic using word prediction rather than word processing, (b) to what extent will the use of word prediction software result in the production of different types of errors compared to errors produced using word processing, (c) to what extent will the use of word prediction software increase accuracy by decreasing spelling errors, (d) to what extent will more text be produced using word prediction software than with word processing, and (e) to what extent will word prediction increase motivation or willingness to write? Data will be graphed and analyzed for bifurcation. Bifurcation will be determined by examination of the means, level of performance, and trend. Finally, examination of errors will be used to verify spelling accuracy