A Wearable User Interface for Measuring Reaction Time

  • Burcu Cinaz
  • Christian Vogt
  • Bert Arnrich
  • Gerhard Tröster
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7040)

Abstract

Reaction time (RT) tests are known as simple and sensitive tests for detecting variation in cognitive efficiency. RT tests measure the elapsed time between a stimulus and the individual’s response to it. A drawback of existing RT tests is that they require the full attention of a test person which prohibits the measurement of cognitive efficiency during daily routine tasks. In this contribution we present the design and the evaluation of a wearable RT test user interface which can be operated throughout everyday life. We designed a wearable watch-like device which combines the generation of a haptic stimulus and the recognition of subject’s hand movement response. In order to show to what extent the wearable RT test is convenient to measure reaction times, we designed an experiment in which we measured the reaction times of ten subjects from two different setups. In the first half of the experiment, the participants performed a desktop-based RT test whereas in the second half of the experiment they performed the wearable RT test. In order to measure changes in the duration and variability of reaction times we induced additional cognitive load in both setups. We show that individual changes of reaction times occurred due to the cognitive load manipulation are similar for both desktop-based and wearable RT test. Additionally we investigate the subjective ratings of perceived workload. We conclude that the presented wearable RT test allows to measure changes in reaction times occurred due to additional cognitive load and hence would allow the assessment of changes in cognitive efficiency throughout everyday life.

Keywords

reaction time wearable user interface cognitive efficiency 

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References

  1. 1.
  2. 2.
    Braverman, E.R., Chen, A.L., Chen, T.J., Schoolfield, J.D., Notaro, A., Braverman, D., Kerner, M., Blum, S.H., Arcuri, V., Varshavskiy, M., Damle, U., Downs, B.W., Waite, R.L., Oscar-Berman, M., Giordano, J., Blum, K.: Test of variables of attention (TOVA) as a predictor of early attention complaints, an antecedent to dementia. Neuropsychiatr. Dis. Treat. 6, 681–690 (2010)Google Scholar
  3. 3.
    Chen, H.-Y., Santos, J., Graves, M., Kim, K., Tan, H.Z.: Tactor Localization at the Wrist. In: Ferre, M. (ed.) EuroHaptics 2008. LNCS, vol. 5024, pp. 209–218. Springer, Heidelberg (2008)CrossRefGoogle Scholar
  4. 4.
    Forbes, G.B.: Clinical utility of the Test of Variables of Attention (TOVA) in the diagnosis of attention-deficit/hyperactivity disorder. J. Clin. Psychol. 54, 461–476 (1998)CrossRefGoogle Scholar
  5. 5.
    Gorus, E., De Raedt, R., Lambert, M., Lemper, J.C., Mets, T.: Reaction times and performance variability in normal aging, mild cognitive impairment, and Alzheimer’s disease. J. Geriatr. Psychiatry Neurol. 21, 204–218 (2008)CrossRefGoogle Scholar
  6. 6.
    Harms, H., Amft, O., Winkler, R., Schumm, J., Kusserow, M., Tröster, G.: Ethos: Miniature orientation sensor for wearable human motion analysis. In: Proceedings of IEEE Sensors Conference. IEEE (2010)Google Scholar
  7. 7.
    Hart, S.G., Stavenland, L.E.: Development of NASA-TLX (Task Load Index): Results of empirical and theoretical research. In: Hancock, P.A., Meshkati, N. (eds.) Human Mental Workload, ch. 7, pp. 139–183. Elsevier (1988)Google Scholar
  8. 8.
    Ivorra, A., Daniels, C., Rubinsky, B.: Minimally obtrusive wearable device for continuous interactive cognitive and neurological assessment. Physiol. Meas. 29, 543–554 (2008)CrossRefGoogle Scholar
  9. 9.
    Jaeggi, S.M., Buschkuehl, M., Jonides, J., Perrig, W.J.: Improving fluid intelligence with training on working memory. Proc. Natl. Acad. Sci. USA 105, 6829–6833 (2008)CrossRefGoogle Scholar
  10. 10.
    Jensen, A.R.: Clocking the mind: Mental chronometry and individual differences. Elsevier (2006)Google Scholar
  11. 11.
    Kosinski, R.J.: A literature review on reaction time (August 2009)Google Scholar
  12. 12.
    Lee, S.C., Starner, T.: BuzzWear: alert perception in wearable tactile displays on the wrist. In: CHI 2010: Proceedings of the 28th International Conference on Human Factors in Computing Systems, pp. 433–442. ACM, New York (2010)Google Scholar
  13. 13.
    Lieberman, H.R., Matthew Kramer, F., Montain, S.J., Niro, P.: Field assessment and enhancement of cognitive performance: Development of an ambulatory vigilance monitor. Aviation, Space, and Environmental Medicine 78 (2007)Google Scholar
  14. 14.
    Duncan Luce, R.: Response Times: Their Role in Inferring Elementary Mental Organization. Oxford University Press (1986)Google Scholar
  15. 15.
    Matscheko, M., Ferscha, A., Riener, A., Lehner, M.: Tactor placement in wrist worn wearables. In: International Symposium on Wearable Computers (ISWC), pp. 1–8 (2010)Google Scholar
  16. 16.
    Oakley, I., Kim, Y., Lee, J., Ryu, J.: Determining the feasibility of forearm mounted vibrotactile displays. In: Haptic Interfaces for Virtual Environment and Teleoperator Systems, HAPTICS 2006 (2006)Google Scholar
  17. 17.
    Scholz, U., Marca, R.L., Nater, U.M., Aberle, I., Ehlert, U., Hornung, R., Martin, M., Kliegel, M.: Go no-go performance under psychosocial stress: Beneficial effects of implementation intentions. Neurobiology of Learning and Memory 91(1), 89–92 (2009)CrossRefGoogle Scholar
  18. 18.
    Vaurio, R.G., Simmonds, D.J., Mostofsky, S.H.: Increased intra-individual reaction time variability in attention-deficit/hyperactivity disorder across response inhibition tasks with different cognitive demands. Neuropsychologia 47(12), 2389–2396 (2009)CrossRefGoogle Scholar
  19. 19.
    Whelan, R.: Effective analysis of reaction time data. The Psychological Record 58, 475–482 (2008)Google Scholar
  20. 20.
    Wild, K., Howieson, D., Webbe, F., Seelye, A., Kaye, J.: Status of computerized cognitive testing in aging: A systematic review. Alzheimer’s and Dementia 4(6), 428–437 (2008)CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Burcu Cinaz
    • 1
  • Christian Vogt
    • 1
  • Bert Arnrich
    • 1
  • Gerhard Tröster
    • 1
  1. 1.Electronics LaboratoryETH ZurichZurichSwitzerland

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