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Related Experiment Video

Updated: Sep 14, 2025

Eye-tracking to Distinguish Comprehension-based and Oculomotor-based Regressive Eye Movements During Reading

Eye-tracking to Distinguish Comprehension-based and Oculomotor-based Regressive Eye Movements During Reading

Published on: October 18, 2018

How does vertical reading affect saccade programming and lexical processing in the Roman script?

Zeynep G Özkan¹, Jukka Hyönä², Maria Fernández-López³

¹Departamento de Metodología and ERI‑Lectura, Universitat de València, Valencia, Spain.

Psychological Research

|July 22, 2025

Summary

This summary is machine-generated.

Reading vertically arranged Roman script slows eye movements but does not affect word recognition. Saccade programming delays in vertical reading do not impact lexical processing, refining computational models of reading.

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Investigating the Deployment of Visual Attention Before Accurate and Averaging Saccades via Eye Tracking and Assessment of Visual Sensitivity

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Published on: March 18, 2019

Area of Science:

Cognitive Psychology
Computational Neuroscience
Linguistics

Background:

Reading models primarily focus on horizontal text.
Vertical text arrangements are common in Roman script.
Understanding vertical reading informs broader models of visual processing.

Purpose of the Study:

Investigate eye movement control during vertical reading.
Examine the interaction between saccade programming and lexical access.
Test how text layout affects reading efficiency and word processing.

Main Methods:

Manipulated word layout (horizontal vs. vertical).
Varied word frequency (high vs. low).
Measured eye movements (fixation duration, gaze duration, total time).

Main Results:

Vertical text layout increased fixation durations but not fixation counts.
Word frequency effects on lexical processing remained consistent across layouts.
Additive effects suggest independent processing of layout and word frequency.

Conclusions:

Slower saccade programming in vertical reading does not impede lexical processing.
Lexical processing influences saccade programming, but not vice-versa.
Findings constrain current computational models of reading and eye movement control.