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Related Experiment Video

Updated: May 20, 2026

A Gaze-Contingent Display Framework for Perceptual Learning Research with Simulated Central Vision Loss

A Gaze-Contingent Display Framework for Perceptual Learning Research with Simulated Central Vision Loss

Published on: April 11, 2025

Gaze orientation interferes with mental numerical representation.

Emiliano Brunamonti¹, Rossella Falcone, Aldo Genovesio

¹Department of Physiology and Pharmacology, Sapienza University, Rome, Italy. emiliano.brunamonti@uniroma1.it

Cognitive Processing

|August 2, 2012

Summary

This summary is machine-generated.

People mentally represent numbers on a spatial number line. Gaze direction impacts number comparison accuracy, particularly for larger numbers, suggesting physical and mental spaces overlap.

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Area of Science:

Cognitive psychology
Numerical cognition
Spatial cognition

Background:

Number comparison tasks exhibit distance and size effects.
These effects suggest numbers are represented on a spatial mental number line.
The size effect indicates larger numbers are represented less precisely.

Purpose of the Study:

To investigate if participants use a spatial strategy in number comparison.
To assess the influence of gaze direction on number comparison performance.

Main Methods:

Assessed distance and size effects in a number comparison task.
Examined the impact of gaze position on task performance.

Main Results:

Confirmed the presence of distance and size effects, supporting a spatial strategy.
Found that gaze direction significantly interferes with number comparisons.
Observed that gaze direction exacerbates the vague representation of larger numbers.

Conclusions:

Gaze direction influences numerical magnitude representation.
Results support the hypothesis of an overlap between physical and mental spaces in numerical cognition.