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Area of Science:

  • Cognitive Psychology
  • Linguistics
  • Neuroscience

Background:

  • Current reading models often overlook individual differences and cross-linguistic variations.
  • Most reading research relies on data from English speakers, a language with irregular orthography.

Purpose of the Study:

  • To investigate the role of orthographic consistency in individual reading differences.
  • To compare reading performance between English and Italian speakers, who have highly irregular and regular orthographies, respectively.

Main Methods:

  • Utilized the Rapid Serial Visual Presentation (RSVP) paradigm to assess word reading.
  • Employed a vocal reaction time (vRT) task with word frequency analysis.
  • Applied ex-Gaussian distribution analysis to model reading time variability.

Main Results:

  • English participants exhibited significantly greater individual variability in reading speed compared to Italian participants.
  • Ex-Gaussian analysis revealed language-specific differences in reading time variability (tau and sigma parameters).
  • The typical relationship between mean performance and variability observed in timed tasks did not hold for English readers.

Conclusions:

  • Orthographic consistency is a crucial factor influencing individual differences in reading.
  • Reading models must incorporate cross-linguistic variability to accurately represent reading behavior.
  • Future research should explore how orthographic regularity affects reading processes across diverse languages.