Tractography-based Parcellation of the Human Middle Temporal Gyrus

Xu, Jinping, Wang, Jiaojian, Fan, Lingzhong, Li, Hai, Zhang, Wen, Hu, Qingmao and Jiang, Tianzi (2015) Tractography-based Parcellation of the Human Middle Temporal Gyrus. Scientific Reports, 5 18883: . doi:10.1038/srep18883


Author Xu, Jinping
Wang, Jiaojian
Fan, Lingzhong
Li, Hai
Zhang, Wen
Hu, Qingmao
Jiang, Tianzi
Title Tractography-based Parcellation of the Human Middle Temporal Gyrus
Journal name Scientific Reports   Check publisher's open access policy
ISSN 2045-2322
Publication date 2015-12-22
Year available 2015
Sub-type Article (original research)
DOI 10.1038/srep18883
Open Access Status DOI
Volume 5
Issue 18883
Total pages 13
Place of publication London, United Kingdom
Publisher Nature Publishing Group
Collection year 2016
Language eng
Abstract The middle temporal gyrus (MTG) participates in a variety of functions, suggesting the existence of distinct functional subregions. In order to further delineate the functions of this brain area, we parcellated the MTG based on its distinct anatomical connectivity profiles and identified four distinct subregions, including the anterior (aMTG), middle (mMTG), posterior (pMTG), and sulcus (sMTG). Both the anatomical connectivity patterns and the resting-state functional connectivity patterns revealed distinct connectivity profiles for each subregion. The aMTG was primarily involved in the default mode network, sound recognition, and semantic retrieval. The mMTG was predominantly involved in the semantic memory and semantic control networks. The pMTG seems to be a part of the traditional sensory language area. The sMTG appears to be associated with decoding gaze direction and intelligible speech. Interestingly, the functional connectivity with Brodmann’s Area (BA) 40, BA 44, and BA 45 gradually increased from the anterior to the posterior MTG, a finding which indicated functional topographical organization as well as implying that language processing is functionally segregated in the MTG. These proposed subdivisions of the MTG and its functions contribute to understanding the complex functions of the MTG at the subregional level.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Queensland Brain Institute Publications
Official 2016 Collection
Centre for Advanced Imaging Publications
 
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