ࡱ> ;=:c )jbjbSS 211%] :>&: , FFFF.*,V,F:t, t: MAPS Memory Aiding Prompting System (Stefan Carmien) Cognitively handicapped individuals are often unable to live on their own because of their inability to consistently do normal domestic tasks like cooking, taking medications, personal hygiene and other tasks. A common way of transitioning from assisted living (or living with ones family) to independent or semi-independent living is thru the use of prompting systems. Several computer based prompting systems have been created for home living, with some success. Transition professionals identified the home as one of these four broad areas where prompting can be of use: community, recreation, vocational and domestic Looking at this list it is clear that there is a need for extending these systems to outside-the-home environments. A prompting system that can be hand held, robust and effective would be clearly a win in an established, proven area of successful techniques. In the existing systems I have studied, and in fact in general for all Assistive computer-based technology (including and especially in Augmentative and Alternative Communication (ACC) devices), a major contributory factor in non-adoption or short-term only use, is difficulty in initial configuration and modification of the configuration of the device. Some experts estimate that as much as 70% of all such devices and systems are purchased and not used over the long run. By viewing the configuration and other caretaker tasks as a separate and equally important interface, and by applying techniques such as task-oriented design, this problem could be mitigated. Additionally there is a lack of small granularity information about the actual use of the tools, for adjusting configuration, long-term evaluation of the user/device/configuration match and research purposes. Typically the use of these assistive computer systems include three roles: end user (the handicapped person), caretaker (family or institutional person), and technology expert (this may be a team of domain experts but will typically be one installation/configuration person once the system is chosen and purchased) By designing a System including easy to create and modify prompting scripts, these small atomic groups could be connected through the medium of sharing and modifying scripts in repositories of scripts. This could add the well known leverage of an open source tool as well as providing a immediate reason for creation of a forum of users, caretakers and designers that could also assist in overcoming the insulated life that these problems often cause (e.g. there is a very high divorce rate amongst parents of similarly disabled children). The size of the problem can be glimpsed by the following quote from the web page of The ARC ( HYPERLINK "http://www.thearc.org" www.thearc.org) a group devoted to the issues of mental retardation (a major subset of the targeted domain of the cognitively handicapped): How many people are affected by mental retardation? The Arc reviewed a number of prevalence studies in the early 1980s and concluded that 2.5 to 3 percent of the general population have mental retardation (The Arc, 1982). Based on the 1990 census, an estimated 6.2 to 7.5 million people have mental retardation. Mental retardation is 10 times more common than cerebral palsy and 28 times more prevalent than neural tube defects such as spina bifida. It affects 25 times as many people as blindness (Batshaw, 1997). Mental retardation cuts across the lines of racial, ethnic, educational, social and economic backgrounds. It can occur in any family. One out of ten American families is directly affected by mental retardation. Prompting by trainers or with cards is an established technique used for both learning and repeating a task by cognitively handicapped adults. In my meeting with the Adam 12 high school to adult life transition group and with others prompting is presented as a primary tool for both training in new tasks and as a scaffolding enabling ongoing task completion. There have been several papers on the topic of computerized prompting and cognitively handicapped by a European research group [Lancioni 99-00] and several others [Kim 00; Lynch 95]. This work was inspired by an existing commercial system called Visions. Visions is a stationary prompting system based on a Win95 machine, touchscren(s) and speakers. Visions interacts with the user through sound prompts time to get up or sound & visual prompts (e.g. making a meal). The Able Link team ( HYPERLINK "http://www.ablelinktech.com" http://www.ablelinktech.com/AbleLinkFrameset.asp) has a product called Pocket Coach that gives a series of vocal prompts running on a PDA using WinCE. The Issac project ( HYPERLINK "http://www.certec/ith/se/English/Isaac/index.html" http://www.certec/ith/se/English/Isaac/index.html ) did much initial exploration of PDAs for cognitively handicapped. The design part of the project will make extensive use of Kings Assistive Technology- Essential Human Factors [King 1999] and Beukelmans Augmentative and Alliterative Communication [Beukelman 1998] texts. Underlying much of the proposed system will be concepts, basic to the L3D group, like aiding communities of practice, developing tools to make artifacts rather than simply artifacts, and an emphasis on an active engagement with the computational enhancement system by all stakeholders (http://www.cs.colorado.edu/~l3d/). Initially the project will be involve the creation of a prompting system on a palm sized touch screen device that will be capable of displaying and vocalizing a series of steps to accomplish a task. This prompting can be elicited by a menu or triggered by a timer (or possibly remotely via IR). The initial task that the system will solve will be replacing the card system for shopping for weekly groceries in the Visions system. The system will be linear in the sense of one picture and prompt will follow sequentially after another, but will allow restarting and backstepping. There will be several levels of logging, from the ability to trace steps not taken on an immediate basis to long term logging for diagnostic analysis. From this point further elaborations in the design could be interactivity with other smart things like bus stops that inform the user that the bus they wanted had just left or would arrive in 10 minutes. Other interactions could be panic situations, here a GPS system could inform helpers of a lost client or simple ACC functionality to allow interactions with sales clerks and systems like the EDC. The interfaces for the initial installer and ongoing changes would be targeted at non-computer professionals, and be simple and intuitive. Doing this part right is, from the perspective of adoption of the device, as important as the user interface. Currently, the project has purchased a PDA (a handspring Prism), sound and camera modules for it, the Codewarrior Palm OS development system. I am using a trial version of Sybases Adaptive SQP server and Ultralite PDA DBMS. I have determined and implemented the database schema using Sybases Power Designer tool and have worked through the sample Palm app code tutorial. I have written a high level modular decomposition of the PDA side of the application as well as a rough cut at the pseudo code. The next step will be the tool for creating and sharing scripts on the PC. I am continuing my research into the literature on Assistive technology design and prompting. I have established a connection with the Adam 12 transition team to provide real world feedback on my project as well as users (cognitively disabled, caretakers, technology experts) for evaluation. I am also working on getting the necessary authorization and documents from the university for doing research on humans. I expect to have a rough prototype this summer. A possible extension of my project might be as part of an implementation of an intelligent bus stop. The PDS could interact with the bust stop or kiosk which would, in turn be connected to the Bus system and its knowledge of schedules and actual bus arrivals and also with a 911 style panic service that would assist a lost cognitively disabled individual. From this scheme many other possibilities come to mind: using the PDA as a ACC (Augmentative and Alternative Communication) device to interface the types of information that may present too high a conceptual hurdle, a telephone interface for difficult to use proprietary PBX phone stations, a smart wallet, etc. References: Lynch, W. Ph.D., You Must Remember This: Assistive Devices for Memory Impairment, J Head Trauma Rehabilitation, 1995:10(1):94-97. Kim, H.; Burke, D.; Dowds, M.; Robinson Boone, K.; Park, G., Electronic Memory Aids for Outpatient Brain Injury: Follow-up Findings, Brain Injury, ISSN 1362-301X online, 2000. Lancioni, G.; Van den Hof, E.; Furniss, F.; OReilly, M., Cunha, B., Evaluation of a Computer-aided System Providing Pictorial Task Instructions and Prompts to People with Severe Intellectual Disability, Journal of Intellectual Disability Research, Vol. 43, Part I pp. 61-66, February 1999. Lancioni, G., OReilly, M., Seedhouse, P., Furniss, F., Cunha B.; Promoting Independent Task Performance by Persons with Severe Developmental Disabilities through a New Computer-aided System, Behavior Modification, Vol. 24 No. 5, October 2000, pp. 700-718. 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