From Extraneous Noise to Categorizable Signatures: Using Multi-scale Analyses to Assess Implicit Interaction Needs of Older Adults with Visual Impairments

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 diff...

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Bibliographic Details
Published inHuman-Computer Interaction - INTERACT 2005 Vol. 3585; pp. 1108 - 1111
Main Authors Moloney, Kevin P, Leonard, V. Kathlene, Shi, Bin, Jacko, Julie A, Vidakovic, Brani, Sainfort, François
Format Book Chapter Conference Proceeding
LanguageEnglish
Published Berlin, Heidelberg Springer Berlin Heidelberg 2005
Springer
SeriesLecture Notes in Computer Science
Subjects
Applied sciences
Computer science; control theory; systems
Computer systems and distributed systems. User interface
Exact sciences and technology
Extraneous Noise
Multifractal Analysis
Multifractal Spectrum
Pupil Diameter
Regularity Index
Software
Fractal
Wavelet transformation
User interface
Irregularity
Vision disorder
Man machine relation
Anomaly
Degeneration
Signature analysis
Regularity
User need
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Summary: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 distribution of regularity indices was extracted from the data signals to reveal signatures of PRB change patterns. One characteristic of the multifractal spectrum, Left Slope (LS), fully distinguished the user groups, revealing trends of increasing PRB irregularity with increasing levels of ocular dysfunction.
ISBN:9783540289432
3540289437
ISSN:0302-9743
1611-3349
DOI:10.1007/11555261_116