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Assessing Binocular Central Visual Field and Binocular Eye Movements in a Dichoptic Viewing Condition

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Visual Search Within a Limited Window Area: Scrolling Versus Moving Window.

Yumiko Fujii¹, Hiromi Morita¹

¹Faculty of Library, Information, and Media Science, University of Tsukuba, Ibaraki, Japan.

|November 5, 2020

Summary

Image scrolling on mobile devices is less efficient for visual search than using a moving window. This study found scrolling led to slower perception and different eye movement patterns compared to other viewing methods.

Keywords:

eye movements image scrolling oculomotor behavior tracking/shifting attention visual perception visual search

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Area of Science:

Human-Computer Interaction
Cognitive Psychology
Visual Perception

Background:

Limited screen space on mobile devices necessitates image viewing techniques like scrolling.
Understanding visual perception during image scrolling is crucial for optimizing user experience.

Purpose of the Study:

To investigate visual perception and search efficiency within a small window frame.
To compare visual search efficiency across scrolling, moving-window, and free-viewing modes.

Main Methods:

Compared visual search efficiency using three modes: scrolling, moving-window, and free-viewing.
Varied item number and stimulus size to assess impact on search performance.
Analyzed scan traces to understand eye movement patterns.

Main Results:

Search efficiency varied significantly by mode: scrolling was slowest, followed by moving-window, with free-viewing being fastest.
Scrolling showed the slowest increase in response time relative to stimulus size.
Scan traces revealed frequent pauses and small shifts for scrolling, contrasting with continuous movements for the moving-window.

Conclusions:

Image scrolling is less efficient for visual search than a moving-window approach.
Differences in scan dynamics, including pauses and movement patterns, underlie the observed efficiency variations.