Using E-Z Reader to examine the consequences of fixation-location measurement error

Erik D. Reichle*, Denis Drieghe

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

There is an ongoing debate about whether fixation durations during reading are only influenced by the processing difficulty of the words being fixated (i.e., the serial-attention hypothesis) or whether they are also influenced by the processing difficulty of the previous and/or upcoming words (i.e., the attentiongradient hypothesis). This article reports the results of 3 simulations that examine how systematic and random errors in the measurement of fixation locations can generate 2 phenomena that support the attention-gradient hypothesis: parafoveal-on-foveal effects and large spillover effects. These simulations demonstrate how measurement error can produce these effects within the context of a computational model of eye-movement control during reading (E-Z Reader; Reichle, 2011) that instantiates strictly serial allocation of attention, thus demonstrating that these effects do not necessarily provide strong evidence against the serial-attention hypothesis.

Original languageEnglish
Pages (from-to)262-270
Number of pages9
JournalJournal of Experimental Psychology: Learning, Memory, and Cognition
Volume41
Issue number1
DOIs
Publication statusPublished - Jan 2015
Externally publishedYes

Keywords

  • eye movement control
  • fixation times
  • eye movement models
  • reading
  • fixation-location measurement error

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