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Related Experiment Videos

Visual training after long term deprivation: a case report.

P A Apkarian

    The International Journal of Neuroscience
    |May 1, 1983
    PubMed
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    This study developed a Tactile Vision Substitution System (TVSS) training program to help blind individuals perceive visual information through touch. The program facilitated functional vision development in a young girl with long-term visual deprivation.

    Area of Science:

    • Neuroscience
    • Sensory Substitution
    • Rehabilitation Medicine

    Background:

    • Developing effective sensory substitution methods is crucial for individuals with blindness.
    • The Tactile Vision Substitution System (TVSS) converts optical information into tactile stimuli.
    • Limited tactile resolution necessitates specialized training paradigms.

    Observation:

    • A training program was created for the TVSS to enable perception of visual information via the tactile modality.
    • This program was applied to a case of visual restoration in a young girl with long-term form deprivation (3 months to 12 years).
    • The training incorporated electro-oculography biofeedback for oculomotor control and visual evoked potential evaluation for objective visual function assessment.

    Findings:

    • The study details the development of functional vision over an 11-month training period.

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  • The tactile training paradigms successfully compensated for the skin's limited resolution.
  • Objective assessments confirmed improvements in visual function.

    • Implications:

    • This research demonstrates the potential of sensory substitution devices like TVSS for restoring functional vision.
    • The findings highlight the importance of tailored training programs and biofeedback in visual rehabilitation.
    • This approach offers a promising avenue for improving the quality of life for individuals with blindness due to early-onset visual deprivation.