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Updated: Aug 17, 2026

Utilizing Electroencephalography Measurements for Comparison of Task-Specific Neural Efficiencies: Spatial Intelligence Tasks
Published on: August 9, 2016
Interhemispheric resource sharing: decreasing benefits with increasing processing efficiency
Marianne Maertens1, Stefan Pollmann
1Day Clinic of Cognitive Neurology, University Clinic Leipzig, Leipzig, Germany. maertens@cbs.mpg.de
Abstract:
Visual matches are sometimes faster when stimuli are presented across visual hemifields, compared to within-field matching. Using a cued geometric figure matching task, we investigated the influence of computational complexity vs. processing efficiency on this bilateral distribution advantage (BDA). Computational complexity was manipulated by requiring different types of match decision (physical identity vs. category identity) and processing efficiency was varied by on-task training A pronounced BDA, initially present in both tasks, completely disappeared in the course of training for the less complex and decreased for the more complex task. Thus, the size of the BDA is determined by both, processing efficiency and task complexity.
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Lateralization
Parallel Processing
Cerebral Hemispheres
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