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An fMRI Study of Local Synchronization in Different Subfrequency Bands during the Continuous Feedback of Finger Force
Joint Authors
Zang, Yu-Feng
Zhang, Hang
Gao, Zhong-Zhan
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-06-09
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Conventional functional magnetic resonance imaging (fMRI) studies on motor feedback employ periodical blocked paradigm which does not allow frequency analysis of brain activity.
Here, we carried out an fMRI study by using a continuous paradigm, that is, continuous (8 min) feedback of finger force.
Borrowing an analytic method widely used in resting-state fMRI studies, that is, regional homogeneity (ReHo), we compared the local synchronization in some subfrequency bands between real and sham feedback, and the subbands were defined as Slow-6 (0.0–0.01 Hz), Slow-5 (0.01–0.027 Hz), Slow-4 (0.027–0.073 Hz), Slow-3 (0.073–0.198 Hz), and Slow-2 (0.198–0.25 Hz).
Our results revealed that the five subfrequency bands of brain activity contributed to the changes of ReHo between real and sham feedback differently, and, more importantly, the changes in basal ganglia were only manifested in Slow-6, implicating the fact that ReHo in ultraslow band may be associated with the functional significance of BG, that is, motor control.
These findings provide novel insights into the neural substrate underlying motor feedback, and properties of the ultraslow band of local synchronization deserve more attention in future explorations.
American Psychological Association (APA)
Zhang, Hang& Gao, Zhong-Zhan& Zang, Yu-Feng. 2015. An fMRI Study of Local Synchronization in Different Subfrequency Bands during the Continuous Feedback of Finger Force. BioMed Research International،Vol. 2015, no. 2015, pp.1-8.
https://search.emarefa.net/detail/BIM-1054835
Modern Language Association (MLA)
Zhang, Hang…[et al.]. An fMRI Study of Local Synchronization in Different Subfrequency Bands during the Continuous Feedback of Finger Force. BioMed Research International No. 2015 (2015), pp.1-8.
https://search.emarefa.net/detail/BIM-1054835
American Medical Association (AMA)
Zhang, Hang& Gao, Zhong-Zhan& Zang, Yu-Feng. An fMRI Study of Local Synchronization in Different Subfrequency Bands during the Continuous Feedback of Finger Force. BioMed Research International. 2015. Vol. 2015, no. 2015, pp.1-8.
https://search.emarefa.net/detail/BIM-1054835
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1054835