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2017 ; 8
(ä): 1538
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A Tri-network Model of Human Semantic Processing
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Front Psychol
2017[]; 8
(ä): 1538
PMID28955266
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Humans process the meaning of the world via both verbal and nonverbal modalities.
It has been established that widely distributed cortical regions are involved in
semantic processing, yet the global wiring pattern of this brain system has not
been considered in the current neurocognitive semantic models. We review evidence
from the brain-network perspective, which shows that the semantic system is
topologically segregated into three brain modules. Revisiting previous
region-based evidence in light of these new network findings, we postulate that
these three modules support multimodal experiential representation,
language-supported representation, and semantic control. A tri-network
neurocognitive model of semantic processing is proposed, which generates new
hypotheses regarding the network basis of different types of semantic processes.