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Prism adaptation to a rightward optical deviation rehabilitates left hemispatial neglect

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  • Yves Rossetti

    (Service de Rééducation Neurologique, Hôpital Henry Gabrielle, Hospices Civils de Lyon and Université Claude Bernard
    INSERM, Unité 94: Espace et Action)

  • Gilles Rode

    (Service de Rééducation Neurologique, Hôpital Henry Gabrielle, Hospices Civils de Lyon and Université Claude Bernard
    INSERM, Unité 94: Espace et Action)

  • Laure Pisella

    (INSERM, Unité 94: Espace et Action)

  • Alessandro Farné

    (INSERM, Unité 94: Espace et Action)

  • Ling Li

    (Service de Rééducation Neurologique, Hôpital Henry Gabrielle, Hospices Civils de Lyon and Université Claude Bernard)

  • Dominique Boisson

    (Service de Rééducation Neurologique, Hôpital Henry Gabrielle, Hospices Civils de Lyon and Université Claude Bernard
    Service de Rééducation, Hôpital Neurologique)

  • Marie-Thérèse Perenin

    (INSERM, Unité 94: Espace et Action)

Abstract

A large proportion of right-hemisphere stroke patients show hemispatial neglect—a neurological deficit of perception, attention, representation, and/or performing actions within their left-sided space1, inducing many functional debilitating effects on everyday life, and responsible for poor functional recovery and ability to benefit from treatment2. The frequent parietal locus of the lesion producing neglect reflects the impairment of coordinate transformation used by the nervous system to represent extrapersonal space. Given that adaptation to a visual distortion can provide an efficient way to stimulate neural structures responsible for the transformation of sensorimotor coordinates, the aim of our study was to investigate the effect of prism adaptation on various neglect symptoms, including the pathological shift of the subjective midline to the right. All patients exposed to the optical shift of the visual field to the right were improved on their manual body-midline demonstration and on classical neuropsychological tests. Unlike other physiological manipulations used to improve neglect, this improvement lasted for at least two hours after prism removal and thus could be useful in rehabilitation programmes. The positive effect found for both sensorimotor and more cognitive spatial functions suggests that they share or depend on a common level of space representation linked to multisensory integration.

Suggested Citation

  • Yves Rossetti & Gilles Rode & Laure Pisella & Alessandro Farné & Ling Li & Dominique Boisson & Marie-Thérèse Perenin, 1998. "Prism adaptation to a rightward optical deviation rehabilitates left hemispatial neglect," Nature, Nature, vol. 395(6698), pages 166-169, September.
    • Handle: RePEc:nat:nature:v:395:y:1998:i:6698:d:10.1038_25988
    DOI: 10.1038/25988
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    Cited by:

    1. Hyun-Se Choi & Bo-Min Lee, 2022. "A Complex Intervention Integrating Prism Adaptation and Neck Vibration for Unilateral Neglect in Patients of Chronic Stroke: A Randomised Controlled Trial," IJERPH, MDPI, vol. 19(20), pages 1-10, October.
    2. Roberta Ronchi & Patrice Revol & Masahiro Katayama & Yves Rossetti & Alessandro Farnè, 2011. "Seeing Your Error Alters My Pointing: Observing Systematic Pointing Errors Induces Sensori-Motor After-Effects," PLOS ONE, Public Library of Science, vol. 6(6), pages 1-9, June.
    3. Mathias Hegele & Herbert Heuer, 2010. "The Impact of Augmented Information on Visuo-Motor Adaptation in Younger and Older Adults," PLOS ONE, Public Library of Science, vol. 5(8), pages 1-10, August.
    4. Alexander A Ramos & Emil C Hørning & Inge L Wilms, 2019. "Simulated prism exposure in immersed virtual reality produces larger prismatic after-effects than standard prism exposure in healthy subjects," PLOS ONE, Public Library of Science, vol. 14(5), pages 1-14, May.

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