TY - JOUR
T1 - Resting-State Functional Connectivity of the Subthalamic Nucleus to Limbic, Associative, and Motor Networks
AU - Anteraper, Sheeba Arnold
AU - Guell, Xavier
AU - Whitfield-Gabrieli, Susan
AU - Triantafyllou, Christina
AU - Mattfeld, Aaron T.
AU - Gabrieli, John D.
AU - Geddes, Maiya R.
N1 - Funding Information:
The authors would like to thank the Athinoula A. Martinos Imaging Center at McGovern Institute for Brain Research, Massachusetts Institute of Technology, for funding; the Richard and Edith Strauss Fellowship in Clinical Medicine and the Canadian Institutes of Health Research Fellowship to M.R.G.; and Atsushi Takahashi for help with scanner protocols. Eugenia Marin Garcia is thanked for help with data collection.
Publisher Copyright:
Copyright © 2018, Mary Ann Liebert, Inc.
PY - 2018/2
Y1 - 2018/2
N2 - The subthalamic nucleus (STN) is a small structure situated deep in the midbrain that exhibits wide-ranging functionality. In addition to its role in motor control, the STN is considered a hub for synchronizing aspects of emotion and cognition including attention, inhibitory control, motivation, and working memory. Evidence from neuroanatomical tracer studies suggests that the medial, ventromedial, and dorsolateral parts of the STN correspond to limbic, associative, and motor subdivisions, respectively. Although the extent of STN functional anatomical overlap remains unclear, blood oxygenation level dependent imaging of the STN may provide complementary information about the diverse functions of this structure. Methodological limitations in spatial and temporal resolutions, however, have prevented a comprehensive exploration of temporal correlations from the STN to the whole brain. In this study, we optimize spatial (2 mm isotropic) and temporal (TR = 1 s) resolutions to take full advantage of the time series signal-to-noise ratio capabilities of multichannel array coils and simultaneous multislice imaging. We interrogated STN seed-to-voxel resting-state functional MRI connectivity in a group of 30 healthy participants that included the whole brain at high-temporal and spatial resolutions. This analysis revealed STN functional connectivity to limbic, associative, and motor networks. Our findings contribute to the understanding of STN functional neuroanatomy in humans and are clinically relevant for ongoing research in deep brain stimulation.
AB - The subthalamic nucleus (STN) is a small structure situated deep in the midbrain that exhibits wide-ranging functionality. In addition to its role in motor control, the STN is considered a hub for synchronizing aspects of emotion and cognition including attention, inhibitory control, motivation, and working memory. Evidence from neuroanatomical tracer studies suggests that the medial, ventromedial, and dorsolateral parts of the STN correspond to limbic, associative, and motor subdivisions, respectively. Although the extent of STN functional anatomical overlap remains unclear, blood oxygenation level dependent imaging of the STN may provide complementary information about the diverse functions of this structure. Methodological limitations in spatial and temporal resolutions, however, have prevented a comprehensive exploration of temporal correlations from the STN to the whole brain. In this study, we optimize spatial (2 mm isotropic) and temporal (TR = 1 s) resolutions to take full advantage of the time series signal-to-noise ratio capabilities of multichannel array coils and simultaneous multislice imaging. We interrogated STN seed-to-voxel resting-state functional MRI connectivity in a group of 30 healthy participants that included the whole brain at high-temporal and spatial resolutions. This analysis revealed STN functional connectivity to limbic, associative, and motor networks. Our findings contribute to the understanding of STN functional neuroanatomy in humans and are clinically relevant for ongoing research in deep brain stimulation.
KW - 32 channel coil
KW - deep brain stimulation
KW - functional connectivity
KW - resting-state networks
KW - subthalamic nucleus
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U2 - 10.1089/brain.2017.0535
DO - 10.1089/brain.2017.0535
M3 - Article
C2 - 29160088
AN - SCOPUS:85041741794
SN - 2158-0014
VL - 8
SP - 22
EP - 32
JO - Brain Connectivity
JF - Brain Connectivity
IS - 1
ER -