Semantic Processing of Living and Nonliving Concepts across the Cerebral Hemispheres

Autor/inn/en	Pilgrim, L.K.; Moss, H.E.; Tyler, L.K.
Titel	Semantic Processing of Living and Nonliving Concepts across the Cerebral Hemispheres
Quelle	In: Brain and Language, 94 (2005) 1, S.86-93 (8 Seiten) PDF als Volltext Verfügbarkeit
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0093-934X
DOI	10.1016/j.bandl.2004.12.001
Schlagwörter	Semantics; Patients; Brain Hemisphere Functions + Suchen Sie Ihr Suchwort? Semantik; Patient
Abstract	Studies of patients with category-specific semantic deficits suggest that the right and left cerebral hemispheres may be differently involved in the processing of living and nonliving domains concepts. In this study, we investigate whether there are hemisphere differences in the semantic processing of these domains in healthy volunteers. Based on the neuropsychological findings, we predicted a disadvantage for nonliving compared to living concepts in the right hemisphere. Our prediction was supported, in that semantic decisions to nonliving concepts were significantly slower and more error-prone when presented to the right hemisphere. In contrast there were no hemisphere differences for living concepts. These findings are consistent with either differential representation or processing of concepts across right and left hemispheres. However, we also found a disadvantage for nonliving things compared to living things in the left hemisphere, which is not consistent with a simple representation account. We discuss these findings in terms of qualitatively different semantic processing in right and left hemispheres within the framework of a distributed model of conceptual representation. (Author).
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Update	2017/4/10