Jun 2, 2016

The human thalamus is an integrative hub for functional brain networks

BioRxiv : the Preprint Server for Biology
Kai HwangMark D'Esposito

Abstract

The thalamus is globally connected with distributed cortical regions, yet the functional significance of this extensive thalamocortical connectivity remains largely unknown. By performing graph-theoretic analyses on thalamocortical functional connectivity data collected from human participants, we found that the human thalamus displays network properties capable of integrating multimodal information across diverse cortical functional networks. From a meta-analysis of a large dataset of functional brain imaging experiments, we further found that the thalamus is involved in multiple cognitive functions. Finally, we found that focal thalamic lesions in humans have widespread distal effects, disrupting the modular organization of cortical functional networks. This converging evidence suggests that the human thalamus is a critical hub region that could integrate heteromodal information and maintain the modular structure of cortical functional networks.

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Mentioned in this Paper

Meta-Analysis (Publications)
Meta Analysis (Statistical Procedure)
Brain
Theoretical Study
Participant
Structure of Cortex of Kidney
Combined Modality Therapy
Structure
Widespread
Functional Brain Imaging

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