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The Spatial Memory Game: Testing the Relationship Between Spatial Language, Object Knowledge, and Spatial Cognition

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Asymmetric Spatial Processing Under Cognitive Load.

Lien Naert¹, Mario Bonato^1,2, Wim Fias¹

¹Department of Experimental Psychology, Ghent University, Ghent, Belgium.

Frontiers in Psychology

|May 10, 2018

Summary

This summary is machine-generated.

High verbal working memory load impairs spatial attention, particularly for targets in the left visual field. This suggests an asymmetric attentional bias under cognitive load.

Keywords:

cognitive load detection task spatial attention verbal working memory visuo-spatial processing

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Area of Science:

Cognitive neuroscience
Human visual perception
Attention research

Background:

Spatial attention enables selective processing of environmental information.
The influence of cognitive load on spatial processing remains incompletely understood.
Previous research has not fully elucidated how cognitive demands affect hemispheric processing of spatial information.

Purpose of the Study:

To investigate the impact of cognitive load on spatial processing, specifically examining differential effects on left versus right hemispace.
To determine if increased cognitive load influences the detection of visual targets differently based on their location (left vs. right).

Main Methods:

A spatial detection task was integrated with a verbal working memory task.
Cognitive load was manipulated during the maintenance phase of the verbal working memory task.
Target detection performance was measured for stimuli presented in the left and right visual hemifields.

Main Results:

Increasing cognitive working memory load significantly impaired target detection more in the left hemispace compared to the right hemispace.
The magnitude of the negative impact of cognitive load on detection performance correlated with individual differences in attentional processing.
A significant interaction was observed, indicating an asymmetric effect of cognitive load on spatial attention.

Conclusions:

High verbal working memory load induces an asymmetric attentional bias, creating a relative disadvantage for processing information in the left hemispace.
These findings highlight the complex interplay between cognitive load and the neural mechanisms underlying spatial attention and hemispheric specialization.