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Related Experiment Video

Updated: Mar 30, 2026

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

Looking inside and beyond eye fixations in reading.

Elizabeth R Schotter¹, Brennan R Payne²

¹Department of Psychology, University of South Florida, Tampa, FL 33620, USA.

Trends in Cognitive Sciences

|March 28, 2026

Summary

This summary is machine-generated.

Co-registering neural and behavioral data reveals how the brain processes language during reading. Saccade decisions occur mid-lexical processing, explaining why eye movements seem faster than comprehension.

Keywords:

co-registration fixation-related potentials lexical threshold reading word recognition

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Area of Science:

Cognitive Neuroscience
Psycholinguistics
Reading Science

Background:

Understanding reading requires integrating neural and behavioral data.
Previous research often focused on early neural effects during fixations or later linguistic effects separately.
A holistic approach is needed to link neural processing with eye movement control.

Purpose of the Study:

To investigate the temporal coupling between neural language processing and saccade decisions during naturalistic reading.
To examine how extended neural processing influences the timing of eye movements.
To resolve the paradox of rapid eye movements exceeding apparent comprehension speed.

Main Methods:

Co-registration of neural measures (e.g., EEG, fMRI) with behavioral measures (e.g., eye-tracking).
Analysis of neural activity during reading fixations and saccades.
Examination of lexical processing stages and their relationship to saccade initiation.

Main Results:

Saccade decisions are initiated at an intermediate stage of lexical processing.
Complete word recognition and contextual integration occur after saccade initiation.
This timing explains how eye movements can appear faster than cognitive processing.

Conclusions:

Reading involves a dynamic interplay between neural language processing and motor control of eye movements.
Saccade timing is not solely dependent on full word recognition but is influenced by ongoing lexical processing.
The findings provide a new framework for understanding the neural basis of reading behavior.