Model Based Processing of Swabbing Movements on Touch Screens to Improve Accuracy and Efficacy for Information Input of Individuals Suffering from Kinetic Tremor
As a result of demographic change the average age of many western populations increases, accompanied with age-related disease patterns. Especially tremor symptoms rise accordingly, aggravating a barrier free interaction with information systems. In order to maintain a self determined lifestyle at home, new technologies and methods need to be introduced, especially for application in health care and telemedical scenarios. Hence, a new direct input technique based on wiping movements on touch screens has been developed. The combination of a new input concept and applying regular commercially available technologies helps to avoid high costs for acquisition and therefore makes it marketable. While making an input on the touch screen the precise characteristics of every wiping movement can be tracked and is used for computation of the desired entry. The efficacy of this approach was evaluated within a clinical study with n=15 subjects. The results show that the error ratio for inputs by tremor patients can be significantly reduced in comparison to a virtual keyboard, depending on tremor strength and form. The learning curve for first time users is very steep and tends to result in inputs that are only slightly steady than purposeful movements to standard buttons and keys.
Unable to display preview. Download preview PDF.
- [Bain and Findley 1993]Bain, P.G., Findley, L.J.: Assessing tremor severity: A clinical handbook. Smith-Gordon, London (1993)Google Scholar
- [Deuschl et al. 1998]
- [Gina and Sherry 1992]Gina, M.J., Sherry, L.W.: Influence of direct computer experience on older adults´ attitudes toward computers. J. of Gerontology - Psychological Science 47(4), 250–257 (1992)Google Scholar
- [Graham 2000]Graham, B.: Using an accelerometer sensor to measure human hand motion. Massachusetts Institute of Technology (2000)Google Scholar
- [Kraus and Hoffmann 2010]
- [Martínez-Martín 1998]Martínez-Martín, P.: An introduction to the concept of quality of life in Parkinson’s disease. Journal of Neurology, 2–6 (1998)Google Scholar
- [Müller-Tomfelde et al. 2008]Müller-Tomfelde, C., Wessels, A., Schremmer, C.: Tilted tabletops: In between horizontal and vertical workspaces. In: Proc. TABLETOP, pp. 49–56 (2008)Google Scholar
- [Schneider et al. 2008]Schneider, N., Wilkes, J., Grandt, M., Schlick, C.: Investigation of input devices for the age-differentiated design of human-computer interaction. In: Proc. of the Human Factors and Ergonomics Society, pp. 144–148. Mira Digital Publishing, New York (2008)Google Scholar
- [Sengpiel et al. 2008]Sengpiel, M., Struve, D., Dittberner, D., Wandke, H.: Entwicklung von trainingsprogrammen für ältere benutzer von IT-systemen unter berücksichtigung des computerwissens [Development of trainign programms for elderly users of IT-systems considering the computer literacy]. Wirtschaftspsychologie, Alter und Arbeit (3), 94–105 (2008)Google Scholar
- [Wenning et al. 2005]Wenning, G.K., Kiechl, S., Seppi, K., Mueller, J., Hogl, B., Saletu, M., Rungger, G., Gasperi, A., Willeit, J., Poewe, W.: Prevalence of movement disorders in men and women aged 50-89 years (Bruneck Study cohort): a population-based study. The Lancet Neurology 4(12), 815–820 (2005)CrossRefGoogle Scholar