Time Reduction Design Method for Cognitive Assist Technology

  • Junji OhyamaEmail author
  • Nana Itoh
  • Kenji Kurakata
  • Ken Sagawa
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 9193)


Given the importance and abundance of current visual information, visual display designs should consider their accessibility to elderly people. However, adapting designs not only to young users but also to older users is difficult because the difference in perception and cognition between these age groups remains unclear. In order to solve this accessible design issue, we introduce three studies: a study on the effect of aging on visibility, the construction of a database containing the sensory characteristics of older persons and persons with disabilities, and experimental and conceptual studies of our proposed design method, the time reduction design. The time reduction design method can solve the cognitive problems of aging societies by improving both spatial visibility and recognition speed.


Vision Time design Cognitive technology Experimental psychology 


  1. 1.
    United Nations: World Population Ageing 2009, United Nations Publications, New York (2010)Google Scholar
  2. 2.
    ISO 24502:2010 Ergonomics—Accessible design—Specification of age-related luminance contrast for coloured light (2010)Google Scholar
  3. 3.
    Japan Industrial Standard Committee: JIS S 0032 Guidelines for the elderly and people with disabilities—Visual signs and displays—Estimation of minimum legible size for a Japanese single character (2003)Google Scholar
  4. 4.
    Sagawa, K., Kurakata, K.: Estimation of legible font size for elderly people. Synthesiology 6(1), 24–33 (2013)CrossRefGoogle Scholar
  5. 5.
    Sagawa, K., Ujike, H., Sasaki, T.: Legibility of Japanese characters and sentences as a function of age. In: Proceedings of the IEA 2003, vol. 7, pp. 496–499 (2003)Google Scholar
  6. 6.
    Database of sensory characteristics of older persons and persons with disabilities.
  7. 7.
    Kurakata, K., Itoh, N., Ohyama, J., Sato, H., Sagawa, K.: Database of sensory characteristics of older persons and persons with disabilities. Gerontechnology 13(2), 126–127 (2014)CrossRefGoogle Scholar
  8. 8.
    Ohyama, J., Itoh, N.: A study of the effect of font color on minimum legible duration of a character for the time reduction design. In: Proceedings of the 11th Conference of the Japanese Society for Cognitive Psychology, pp. 3–34 (2013)Google Scholar
  9. 9.
    Ohyama, J.: Time reduction design: maximize communication efficiency of visual information by shortest presentation duration. In: Proceedings of 12th Conference of LS-BT, p. 62 (2013)Google Scholar
  10. 10.
    Ohyama J.: Essential studies of visual cognition for time reduction design. In: Proceedings of 13th Conference of LS-BT, p. 126 (2014)Google Scholar
  11. 11.
    Cabinet Office of Japan: Summary of the Eighth Fundamental Traffic Safety Program (2006)Google Scholar
  12. 12.
    Tamura, K., Hayashi, H., Kimura, R.: Clarifying Suffering of the elderly in the 2004 Niigata flood and the 2004 Mid-Niigata prefecture earthquake. J. Nat. Disaster Sci. 27(2), 67–84 (2005)Google Scholar

Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  • Junji Ohyama
    • 1
    Email author
  • Nana Itoh
    • 1
  • Kenji Kurakata
    • 1
  • Ken Sagawa
    • 1
  1. 1.National Institute of Advanced Industrial Science and TechnologyTsukuba City, IbarakiJapan

Personalised recommendations