ABSTRACT
The pupil-measuring capability of video eye trackers can detect the task-evoked pupillary response: subtle changes in pupil size which indicate cognitive load. We performed several experiments to measure cognitive load using a remote video eye tracker, which demonstrate two extensions to current research in this area. First, we show that cognitive pupillometry can be extended from head-mounted to remote eye tracking systems. Second, we demonstrate the feasibility of a more fine-grained approach to analyzing pupil size data gathered with an eye tracker, which provides more detail about the timing and magnitude of changes in cognitive load.
- Ahern, S. and Beatty, J. 1979. Pupillary responses during information processing vary with Scholastic Aptitude Test scores. Science. 205(4412): p. 1289--1292.Google ScholarCross Ref
- Alexandridis, J. A., Leendertz, J. A., and Barbur, J. L. 1991. Methods of studying the behaviour of the pupil. Journal of psychophysiology. 5: p. 223--239.Google Scholar
- Beatty, J. 1982. Task-Evoked Pupillary Responses, Processing Load, and the Structure of Processing Resources. Psychological Bulletin. 91(2): p. 276--92.Google ScholarCross Ref
- Beatty, J. and Lucero-Wagoner, B. Pupillary System. Chapter 6 in Cacioppo, J. T., Tassinary, L. G., and Berntson, G. Handbook of Psychophysiology. 2000. Cambridge University Press.Google Scholar
- Duchowski, A. T. Eye Tracking Methodology: Theory and Practice. 2003. Springer. Google ScholarDigital Library
- Iqbal, S. T., Adamczyk, P. D., Zheng, X. S., and Bailey, B. P., Towards an index of opportunity: understanding changes in mental workload during task execution, in Proceedings of the SIGCHI conference on Human factors in computing systems. 2005. ACM: Portland, Oregon, USA. p. 311--320. Google ScholarDigital Library
- Kahneman, D. and Beatty, J. 1966. Pupil Diameter and Load on Memory. Science. 154(3756): p. 1583--1585.Google ScholarCross Ref
- Marshall, S. P., 2002. The Index of Cognitive Activity: measuring cognitive workload, in Proceedings of the IEEE Conference on Human Factors and Power Plants. p. 7-5--7-9.Google ScholarCross Ref
- McLaren, J. W., Erie, J. C., and Brubaker, R. F. 1992. Computerized analysis of pupillograms in studies of alertness. Investigative Ophthalmology & Visual Sciences 33(3): p. 671--676.Google Scholar
- Moloney, K. P., Jacko, J. A., Vidakovic, B., Sainfort, F., Leonard, V. K., and Shi, B. 2006 Leveraging data complexity: Pupillary behavior of older adults with visual impairment during HCI. ACM Trans. Comput.-Hum. Interact. 13(3): p. 376--402. Google ScholarDigital Library
- Pomplun, M. and Sunkara, S., 2003. Pupil Dilation as an Indicator of Cognitive Workload in Human-Computer Interaction, in Proceedings of the International Conference on HCI.Google Scholar
- Tobii Technology, Inc., 2007. Tobii 1750. http://www.tobii.comGoogle Scholar
Index Terms
- Measuring the task-evoked pupillary response with a remote eye tracker
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