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Division of labor between the hemispheres for complex but not simple tasks: An implemented connectionist model

Monaghan, P. and Pollmann, S. (2003) Division of labor between the hemispheres for complex but not simple tasks: An implemented connectionist model. Journal of Experimental Psychology: General, 132 (3). pp. 379-399. ISSN 00963445

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Abstract

When stimuli have to be matched in a complex task (such as whether 2 letters have the same name), then performance is better when stimuli are presented across the hemispheres of the brain, whereas for simpler tasks (such as whether 2 letters have the same shape), better performance is achieved when stimuli are presented unilaterally. The authors show that this bilateral distribution advantage effect emerged spontaneously in a neural network model learning to solve simple and complex tasks with separate input layers and separate, but interconnected, resources in a hidden layer. The authors show that relating computational models to behavioral and imaging data proves fruitful for understanding hemispheric processing and generating testable hypotheses.

Item Type: Article
Institution: The University of York
Academic Units: The University of York > Psychology (York)
Depositing User: York RAE Import
Date Deposited: 03 Aug 2009 13:35
Last Modified: 03 Aug 2009 13:35
Published Version: http://dx.doi.org/10.1037/0096-3445.132.3.379
Status: Published
Publisher: Apa American Psychological Association
Identification Number: 10.1037/0096-3445.132.3.379
URI: http://eprints.whiterose.ac.uk/id/eprint/6654

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