The role of the right hemisphere in the interpretation of figurative aspects of language. A positron emission tomography activation study.

Details

Serval ID
serval:BIB_153A74E9AB26
Type
Article: article from journal or magazin.
Collection
Publications
Title
The role of the right hemisphere in the interpretation of figurative aspects of language. A positron emission tomography activation study.
Journal
Brain
Author(s)
Bottini G., Corcoran R., Sterzi R., Paulesu E., Schenone P., Scarpa P., Frackowiak R.S., Frith C.D.
ISSN
0006-8950 (Print)
ISSN-L
0006-8950
Publication state
Published
Issued date
1994
Volume
117 ( Pt 6)
Pages
1241-1253
Language
english
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov'tPublication Status: ppublish
Abstract
We investigated cerebral activity in six normal volunteers using PET to explore the hypothesis that the right hemisphere has a specific role in the interpretation of figurative aspects of language such as metaphors. We also mapped the anatomical structures involved in sentence comprehension. During regional cerebral blood flow measurement subjects were asked to perform three different linguistic tasks: (i) metaphorical comprehension; (ii) literal comprehension of sentences; and (iii) a lexical-decision task. We found that comprehension of sentences compared with the lexical-decision task, induced extensive activation in several regions of the left hemisphere, including the prefrontal and basal frontal cortex, the middle and inferior temporal gyri and temporal pole, the parietal cortex and the precuneus. Comprehension of metaphors was associated with similar activations in the left hemisphere, but in addition, a number of sites were activated in the right hemisphere: the prefrontal cortex, the middle temporal gyrus, the precuneus and the posterior cingulate. We conclude that the interpretation of language involves widespread distributed systems bilaterally with the right hemisphere having a special role in the appreciation of metaphors.
Keywords
Adult, Brain/physiology, Brain/radionuclide imaging, Brain Mapping, Cerebral Cortex/physiology, Cerebral Cortex/radionuclide imaging, Humans, Language, Male, Tomography, Emission-Computed
Pubmed
Web of science
Create date
16/09/2011 20:31
Last modification date
20/08/2019 12:44
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