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Health Systems Institute
Georgia Institute of Technology
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Research

Publications

The following is a list of publications produced by HSI related faculty and students. The link for each paper leads you to the citation, keyword, and abstract. For copies of the full papers, please use standard methods for obtaining academic publications, such as online library searches.

From Extraneous Noise to Categorizable Signatures: Using Multi-scale Analyses to Assess Implicit Interaction Needs...

Authors: K. Moloney, V. K. Emery, B. Shi, J. Jacko, B. Vidakovic, F. Sainfort

Sep 2005

Proceedings of 10th IFIP TC13 International Conference on Human-Computer Interaction (INTERACT 2005)

Abstract: The holistic understanding of human-computer interaction (HCI) is increasingly important, especially given the impending influx of older users who present dynamic needs that evolve with age. This study explores pupillary response behavior (PRB) during computer interaction to identify underlying differences between older adults of varying ocular profiles. PRB was measured from two groups of individuals diagnosed with Age-related Macular Degeneration (AMD) and a visually healthy control group. Unconventional analytical techniques wavelet-based multifractal analyses were used to identify PRB anomalies resulting from the effects of aging and/or ocular pathology. A distri-bution of regularity indices was extracted from the data signals to reveal signa-tures of PRB change patterns. One characteristic of the multifractal spectrum, Left Slope (LS), fully distinguished the user groups, revealing trends of increas-ing PRB irregularity with increasing levels of ocular dysfunction.

Citation: Moloney, K. P., Leonard, V. K., Shi, B., Jacko, J. A., Vidakovic, B., & Sainfort, F. (2005). From Extraneous Noise to Categorizable Signatures: Using Multi-scale Analyses to Assess Implicit Interaction Needs of Older Adults with Visual Impairments. Proceedings of the 10th IFIP TC13 International Conference on Human-Computer Interaction (INTERACT 2005), Rome, Italy, September 12-16, 1108-1111.

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