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Related Experiment Video

Updated: Jun 28, 2025

Eye Tracking During A Complex Aviation Task For Insights Into Information Processing

Eye Tracking During A Complex Aviation Task For Insights Into Information Processing

Published on: April 4, 2025

Quantifying task-related gaze.

Kerri Walter¹, Michelle Freeman², Peter Bex²

¹Department of Psychology, Northeastern University, Boston, MA, USA. walter.ker@northeastern.edu.

Attention, Perception & Psychophysics

|April 9, 2024

Summary

This summary is machine-generated.

Semantic salience, not image features, guides eye movements in natural scenes. Task relevance significantly influences gaze, even when searching for absent targets, highlighting the importance of meaning in visual exploration.

Keywords:

Eye movements: cognitive Natural image statistics Visual search

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Area of Science:

Cognitive Psychology
Neuroscience
Computer Vision

Background:

Human eye movements during scene exploration are guided by competing theories of bottom-up image salience and top-down semantic salience.
Understanding these mechanisms is crucial for fields ranging from artificial intelligence to human-computer interaction.

Purpose of the Study:

To investigate whether semantic salience or image salience better predicts gaze during visual search tasks.
To quantify how task influences gaze behavior in natural scenes using language-based analyses.
To examine the effect of target relevance on viewing strategies during search tasks.

Main Methods:

Two studies were conducted involving human subjects viewing natural scenes.
Study 1 used language-based analyses to assess task influence on gaze across ten scenes.
Study 2 examined gaze prediction using image and semantic salience during a search task for high- or low-relevance objects in 100 scenes.

Main Results:

Semantic similarity between tasks and scene object labels accurately captured task-dependent gaze patterns.
Image salience became a poorer predictor of gaze over successive fixations, whereas semantic salience remained a consistent predictor.
Semantic salience decreased as object relevance decreased, indicating relevance modulates gaze.

Conclusions:

Semantic salience is a robust predictor of gaze during task-oriented scene viewing.
Visual search strategies are modulated by the semantic relevance of potential targets to the scene, even in target-absent scenarios.