Document Detail


An fMRI investigation of analogical mapping in metaphor comprehension: the influence of context and individual cognitive capacities on processing demands.
MedLine Citation:
PMID:  22122242     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
This study used fMRI to investigate the neural correlates of analogical mapping during metaphor comprehension, with a focus on dynamic configuration of neural networks with changing processing demands and individual abilities. Participants with varying vocabulary sizes and working memory capacities read 3-sentence passages ending in nominal critical utterances of the form "X is a Y." Processing demands were manipulated by varying preceding contexts. Three figurative conditions manipulated difficulty by varying the extent to which preceding contexts mentioned relevant semantic features for relating the vehicle and topic of the critical utterance to one another. In the easy condition, supporting information was mentioned. In the neutral condition, no relevant information was mentioned. In the most difficult condition, opposite features were mentioned, resulting in an ironic interpretation of the critical utterance. A fourth, literal condition included context that supported a literal interpretation of the critical utterance. Activation in lateral and medial frontal regions increased with increasing contextual difficulty. Lower vocabulary readers also had greater activation across conditions in the right inferior frontal gyrus. In addition, volumetric analyses showed increased right temporo-parietal junction and superior medial frontal activation for all figurative conditions over the literal condition. The results from this experiment imply that the cortical regions are dynamically recruited in language comprehension as a function of the processing demands of a task. Individual differences in cognitive capacities were also associated with differences in recruitment and modulation of working memory and executive function regions, highlighting the overlapping computations in metaphor comprehension and general thinking and reasoning.
Authors:
Chantel S Prat; Robert A Mason; Marcel Adam Just
Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural     Date:  2011-11-28
Journal Detail:
Title:  Journal of experimental psychology. Learning, memory, and cognition     Volume:  38     ISSN:  1939-1285     ISO Abbreviation:  J Exp Psychol Learn Mem Cogn     Publication Date:  2012 Mar 
Date Detail:
Created Date:  2012-03-06     Completed Date:  2012-07-09     Revised Date:  2014-07-03    
Medline Journal Info:
Nlm Unique ID:  8207540     Medline TA:  J Exp Psychol Learn Mem Cogn     Country:  United States    
Other Details:
Languages:  eng     Pagination:  282-94     Citation Subset:  IM    
Copyright Information:
2012 APA, all rights reserved
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MeSH Terms
Descriptor/Qualifier:
Brain / blood supply*,  physiology*
Brain Mapping*
Comprehension / physiology*
Female
Humans
Image Processing, Computer-Assisted
Individuality*
Magnetic Resonance Imaging
Male
Metaphor*
Oxygen / blood
Reaction Time / physiology
Reading
Regression Analysis
Semantics
Students
Universities
Grant Support
ID/Acronym/Agency:
DC009634/DC/NIDCD NIH HHS; MH029617/MH/NIMH NIH HHS; R01 MH029617/MH/NIMH NIH HHS; R01 MH029617-28/MH/NIMH NIH HHS
Chemical
Reg. No./Substance:
S88TT14065/Oxygen
Comments/Corrections

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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