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Related Experiment Video

Updated: Oct 18, 2025

Assessment of Audio-Tactile Sensory Substitution Training in Participants with Profound Deafness Using the Event-Related Potential Technique
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Towards Understanding Sensory Substitution for Accessible Visualization: An Interview Study.

Pramod Chundury, Biswaksen Patnaik, Yasmin Reyazuddin

    IEEE Transactions on Visualization and Computer Graphics
    |September 29, 2021
    PubMed
    Summary
    This summary is machine-generated.

    Data visualization must become more accessible for blind individuals. This study explores using sound (sonification) and touch (tactile charts) to improve data analysis accessibility for visually impaired users.

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    Area of Science:

    • Human-Computer Interaction
    • Data Visualization
    • Accessibility Research

    Background:

    • Data visualization tools offer significant potential for data analysis.
    • Accessibility barriers exist for blind and visually impaired individuals in data visualization.
    • Current approaches often treat accessibility as a technical issue rather than a holistic design problem.

    Purpose of the Study:

    • To explore equitable and inclusive approaches for making data visualizations accessible to blind and visually impaired users.
    • To investigate the use of non-visual sensory substitution for conveying spatial data layouts.
    • To incorporate insights from orientation and mobility (O&M) experts into accessible visualization design.

    Main Methods:

    • Drawing on accessibility research methodologies.
    • Interviewing 10 blind orientation and mobility (O&M) experts.
    • Conducting thematic analysis of qualitative findings on sensory substitution (sound and touch).
    • Investigating auditory affordances (sonification, auralization) and tactile chart exploration.

    Main Results:

    • Blind individuals often utilize a combination of sound and touch to perceive spatial information.
    • Auditory affordances through sonification and auralization can aid in data visualization accessibility.
    • O&M experts recommended combining auditory and tactile methods for enhanced chart accessibility, as blind users are familiar with tactile charts.

    Conclusions:

    • Accessible data visualization requires a paradigm shift towards inclusive design from the outset.
    • Sonification and tactile representations are promising avenues for making data visualizations accessible.
    • Further research should focus on integrating multi-sensory approaches to support blind users in data analysis.