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Hemisphere specialization of Go experts in visuospatial processing.

T Hatta¹, T Kogure, A Kawakami

¹Department of Behavior and Information Processing, School of Informatics and Sciences, Nagoya University, Japan. thatta@info.human.nagoya-u.ac.jp

The American Journal of Psychology

|March 4, 2000

Summary

Expert Go players exhibit distinct visual field advantages compared to novices, particularly in complex spatial tasks. This suggests that expertise modifies hemisphere function based on task demands.

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Area of Science:

Cognitive Neuroscience
Neuroscience
Psychology

Background:

Expertise can alter cognitive processing and brain lateralization.
Visuospatial tasks are crucial for understanding hemispheric specialization.

Purpose of the Study:

To investigate how expertise in the game of Go influences hemisphere function.
To examine the relationship between task complexity and visual field advantages in experts versus novices.

Main Methods:

Two Salthouse-type visuospatial tasks were administered to Go experts and novices.
Stimuli were presented to the left visual field (LVF) and right visual field (RVF).
Performance was assessed for digit and location identification accuracy.

Main Results:

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No significant group differences were found in Experiment 1 (simpler task).
In Experiment 2 (more complex task), Go experts outperformed novices.
While both groups showed a right visual field (RVF) advantage for number identification, only novices exhibited an RVF advantage for location identification; experts showed no visual field difference.

Conclusions:

Expertise can modulate hemispheric function, leading to different visual field advantages depending on task demands.
Complex visuospatial processing in experts may involve more bilateral or specialized processing, diminishing simple visual field biases seen in novices.