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The spatiotemporal dynamics of semantic integration in the human brain

Linguistics and Languages

The spatiotemporal dynamics of semantic integration in the human brain

E. Murphy, K. J. Forseth, et al.

Discover groundbreaking insights into semantic integration revealed by cutting-edge intracranial recordings from epilepsy patients. This fascinating research, conducted by Elliot Murphy, Kiefer J. Forseth, Cristian Donos, Kathryn M. Snyder, Patrick S. Rollo, and Nitin Tandon, highlights the brain regions involved in processing language and the impact of semantic coherence.

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Playback language: English
Abstract
Language depends critically on integrating lexical information across multiple words to derive semantic concepts. Limitations of spatiotemporal resolution have hindered isolating processes involved in semantic integration. Intracranial recordings in epilepsy patients (n = 58) reading written word definitions revealed that semantically referential sentences activated the inferior frontal sulcus (IFS), medial parietal cortex, orbitofrontal cortex (OFC), and medial temporal lobe. IFS, OFC, and posterior middle temporal gyrus activity was modulated by the semantic coherence of non-referential sentences. These results indicate complementary cortical mosaics for semantic integration.
Publisher
Nature Communications
Published On
Oct 24, 2023
Authors
Elliot Murphy, Kiefer J. Forseth, Cristian Donos, Kathryn M. Snyder, Patrick S. Rollo, Nitin Tandon
Tags
semantic integration
lexical information
intracranial recordings
epilepsy
brain activity
cortical mosaics

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