Publication

Mapping thalamocortical networks in rat brain using resting-state functional connectivity

Liang, Zhifeng
Li, Tao
King, Jean A.
Zhang, Nanyin
Citations
Altmetric:
Student Authors
Faculty Advisor
Academic Program
Document Type
Journal Article
Publication Date
2013-12-01
Subject Area
Embargo Expiration Date
Abstract

Thalamocortical connectivity plays a vital role in brain function. The anatomy and function of thalamocortical networks have been extensively studied in animals by numerous invasive techniques. Non-invasively mapping thalamocortical networks in humans has also been demonstrated by utilizing resting-state functional magnetic resonance imaging (rsfMRI). However, success in simultaneously imaging multiple thalamocortical networks in animals is rather limited. This is largely due to the profound impact of anesthesia used in most animal experiments on functional connectivity measurement. Here we have employed an awake animal imaging approach to systematically map thalamocortical connectivity for multiple thalamic nuclei in rats. Seed-based correlational analysis demonstrated robust functional connectivity for each thalamic nucleus in the cortex, and the cortical connectivity profiles revealed were in excellent accordance with the known thalamocortical anatomical connections. In addition, partial correlation analysis was utilized to further improve the spatial specificity of thalamocortical connectivity. Taken together, these findings have provided important evidence supporting the validity of rsfMRI measurement in awake animals. More importantly, the present study has made it possible to non-invasively investigate the function, neuroplasticity and mutual interactions of thalamocortical networks in animal models.

Source

Liang Z, Li T, King J, Zhang N. Mapping thalamocortical networks in rat brain using resting-state functional connectivity. Neuroimage. 2013 Dec;83:237-44. doi:10.1016/j.neuroimage.2013.06.029. Link to article on publisher's site

Year of Medical School at Time of Visit
Sponsors
Dates of Travel
DOI
10.1016/j.neuroimage.2013.06.029
PubMed ID
23777756
Other Identifiers
Notes
Funding and Acknowledgements
Corresponding Author
Related Resources
Related Resources
Repository Citation
Rights
Distribution License