Abstract:
:A set of cortical and sub-cortical brain structures has been linked with sentence-level semantic processes. However, it remains unclear how these brain regions are organized to support the semantic integration of a word into sentential context. To look into this issue, we conducted a functional magnetic resonance imaging (fMRI) study that required participants to silently read sentences with semantically congruent or incongruent endings and analyzed the network properties of the brain with two approaches, independent component analysis (ICA) and graph theoretical analysis (GTA). The GTA suggested that the whole-brain network is topologically stable across conditions. The ICA revealed a network comprising the supplementary motor area (SMA), left inferior frontal gyrus, left middle temporal gyrus, left caudate nucleus, and left angular gyrus, which was modulated by the incongruity of sentence ending. Furthermore, the GTA specified that the connections between the left SMA and left caudate nucleus as well as that between the left caudate nucleus and right thalamus were stronger in response to incongruent vs. congruent endings.
journal_name
Hum Brain Mappjournal_title
Human brain mappingauthors
Ye Z,Doñamayor N,Münte TFdoi
10.1002/hbm.22182subject
Has Abstractpub_date
2014-02-01 00:00:00pages
367-76issue
2eissn
1065-9471issn
1097-0193journal_volume
35pub_type
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journal_title:Human brain mapping
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pub_type: 杂志文章,meta分析,评审
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