Wider recognition in peripheral vision common to different subtypes of dyslexia

M. L. Lorusso, A. Facoetti, S. Pesenti, C. Cattaneo, M. Molteni, G. Geiger

Research output: Contribution to journalArticlepeer-review

Abstract

Italian children (n=125) were classified into dyslexics, poor readers and ordinary readers. The dyslexics were further classified into the Boder and Bakker subtypes. The children were tested with the form-resolving field (FRF), which measures central and peripheral visual recognition. Dyslexics show higher correct identification of letters in the periphery, supporting the notion of a different distribution of lateral masking. A numerical characterization of individual FRFs - C2R - reliably distinguishes between dyslexics and ordinary readers. The wider distribution of recognition, similar across the various subtypes of dyslexia, suggests a general characteristic of visual perception, and possibly a different visual-attentional mode.

Original languageEnglish
Pages (from-to)2413-2424
Number of pages12
JournalVision Research
Volume44
Issue number20
DOIs
Publication statusPublished - Sep 2004

Keywords

  • Dyslexia
  • Lateral masking
  • Peripheral vision
  • Visual attention

ASJC Scopus subject areas

  • Ophthalmology
  • Sensory Systems

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