Perception of Coherent Motion in Infantile Nystagmus Syndrome.

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  • Author(s): Dai B;Dai B; Cham KM; Cham KM; Abel LA; Abel LA; Abel LA
  • Source:
    Investigative ophthalmology & visual science [Invest Ophthalmol Vis Sci] 2022 Jan 03; Vol. 63 (1), pp. 31.
  • Publication Type:
    Journal Article
  • Language:
    English
  • Additional Information
    • Source:
      Publisher: Association For Research In Vision And Ophthalmology (Arvo) Country of Publication: United States NLM ID: 7703701 Publication Model: Print Cited Medium: Internet ISSN: 1552-5783 (Electronic) Linking ISSN: 01460404 NLM ISO Abbreviation: Invest Ophthalmol Vis Sci Subsets: MEDLINE
    • Publication Information:
      Publication: Brookline Ma : Association For Research In Vision And Ophthalmology (Arvo)
      Original Publication: St. Louis, Mosby.
    • Subject Terms:
      Visual Acuity*; Eye Movements/*physiology ; Motion Perception/*physiology ; Nystagmus, Pathologic/*physiopathology; Adolescent ; Adult ; Female ; Humans ; Male ; Young Adult
    • Abstract:
      Purpose: Research on infantile nystagmus syndrome (INS) and motion perception is limited. We investigated how individuals with INS perform coherent motion tasks. Particularly, we assessed how the null position affects their performance.
      Methods: Subjects with INS and controls identified the direction of coherent motion stimuli (22 subjects with INS and 13 controls) in a two-alternative forced-choice design. For subjects with INS, testing was done at the null position and 15 degrees away from it. If there was no null, testing was done at primary gaze position and 15 degrees away from primary. For controls, testing was done at primary gaze position and 20 degrees away from primary. Horizontal and vertical motion coherence thresholds were determined.
      Results: Subjects with INS showed significantly higher horizontal and vertical motion coherence thresholds compared with controls at both gaze positions (P < 0.001). Within the INS group, for 12 subjects with INS who had an identified null position, no differences in coherence thresholds were found between their null and 15 degrees away from it (P > 0.05).
      Conclusions: Coherent motion perception was impaired in subjects with INS. The null position did not significantly influence motion coherence thresholds for either horizontal or vertical motion.
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    • Publication Date:
      Date Created: 20220124 Date Completed: 20220218 Latest Revision: 20220218
    • Publication Date:
      20240829
    • Accession Number:
      PMC8802013
    • Accession Number:
      10.1167/iovs.63.1.31
    • Accession Number:
      35072688