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Visual objects in the auditory system in sensory substitution:How much information do we need?


Reference:

Brown, D., Simpson, A. J. R. and Proulx, M. J., 2014. Visual objects in the auditory system in sensory substitution:How much information do we need? Multisensory Research, 27 (5-6), pp. 337-357.

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    Abstract

    Sensory substitution devices such as The vOICe convert visual imagery into auditory soundscapes and can provide a basic 'visual' percept to those with visual impairment. However, it is not known whether technical or perceptual limits dominate the practical efficacy of such systems. By manipulating the resolution of sonified images and asking naïve sighted participants to identify visual objects through a six-alternative forced-choice procedure (6AFC) we demonstrate a 'ceiling effect' at 8 × 8 pixels, in both visual and tactile conditions, that is well below the theoretical limits of the technology. We discuss our results in the context of auditory neural limits on the representation of 'auditory' objects in a cortical hierarchy and how perceptual training may be used to circumvent these limitations.

    Details

    Item Type Articles
    CreatorsBrown, D., Simpson, A. J. R. and Proulx, M. J.
    DOI10.1163/22134808-00002462
    Related URLs
    URLURL Type
    http://www.scopus.com/inward/record.url?scp=84911487595&partnerID=8YFLogxKUNSPECIFIED
    http://dx.doi.org/10.1163/22134808-00002462Free Full-text
    Uncontrolled Keywordsauditory,blindness,cross-modal,object recognition,sensory substitution,the voice,visual impairment
    DepartmentsFaculty of Humanities & Social Sciences > Psychology
    RefereedYes
    StatusPublished
    ID Code42519

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