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Behavioural NeurologyVolume 2014 2014, Article ID 603134, 10 pages

Review Article

Center for Neuropsychological Research, Institute of Neurology Policlinico Gemelli, Catholic University of Rome, Largo A. Gemelli 8, 00168 Rome, Italy

IRCCS Fondazione Santa Lucia, Department of Clinical and Behavioral Neurology, Via Ardeatina 306, 00179 Rome, Italy

Received 12 March 2013; Accepted 17 June 2013; Published 23 January 2014

Academic Editor: Stefano F. Cappa

Copyright © 2014 Guido Gainotti. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The present survey develops a previous position paper, in which I suggested that the multimodal semantic impairment observed in advanced stages of semantic dementia is due to the joint disruption of pictorial and verbal representations, subtended by the right and left anterior temporal lobes, rather than to the loss of a unitary, amodal semantic system. The main goals of the present review are a to survey a larger set of data, in order to confirm the differences in conceptual representations at the level of the right and left hemispheres, b to examine if language-mediated information plays a greater role in left hemisphere semantic knowledge than sensory-motor information in right hemisphere conceptual knowledge, and c to discuss the models that could explain both the differences in conceptual representations at the hemispheric level and the prevalence of the left hemisphere language-mediated semantic knowledge over the right hemisphere perceptually based conceptual representations.





Autor: Guido Gainotti

Fuente: https://www.hindawi.com/



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