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Related Experiment Video

Updated: Mar 12, 2026

Measuring Attention and Visual Processing Speed by Model-based Analysis of Temporal-order Judgments

Measuring Attention and Visual Processing Speed by Model-based Analysis of Temporal-order Judgments

Published on: January 23, 2017

Statistical regularities guide the spatial scale of attention.

Jiaying Zhao^1,2, Yu Luo³

¹Department of Psychology, University of British Columbia, Vancouver, BC, V6T 1Z4, Canada. jiayingz@psych.ubc.ca.

Attention, Perception & Psychophysics

|November 16, 2016

Summary

This summary is machine-generated.

Statistical regularities in visual scenes guide attention. Local patterns speed up local shape identification, while global patterns enhance global shape processing, even without conscious awareness.

Keywords:

Attentional control Local and global processing Spatial attention Statistical learning Visual search

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Area of Science:

Cognitive psychology
Visual perception
Attention studies

Background:

The visual system processes information at both local (object) and global (scene) scales.
The prioritization of local versus global processing has been a long-standing debate in vision science.

Purpose of the Study:

To investigate how statistical regularities among individual objects influence the prioritization of local or global visual processing.
To determine if awareness of regularities is necessary for them to guide attention.

Main Methods:

Participants identified local or global shapes in Navon-like figures composed of smaller objects.
Local (triplet) or global (quadruple) regularities were embedded within the object arrangements, unbeknownst to participants.
Reaction times and accuracy were measured for local and global shape identification tasks.

Main Results:

Local shape identification was faster when local regularities (triplets) were present, suggesting attention was drawn to the local scale.
Global shape identification was faster when global regularities (quadruples) were present, indicating attention shifted to the global scale.
Participants did not consciously perceive the embedded regularities.

Conclusions:

Statistical regularities in visual scenes can automatically direct attention to either local or global levels.
These findings demonstrate that regularities guide the spatial scale of attention, even in the absence of explicit awareness.
The study provides evidence for the role of statistical learning in modulating visual attention.