The Global Signal and Observed Anticorrelated Resting State Brain Networks
نویسندگان
چکیده
منابع مشابه
The global signal and observed anticorrelated resting state brain networks.
Resting state studies of spontaneous fluctuations in the functional MRI (fMRI) blood oxygen level dependent (BOLD) signal have shown great promise in mapping the brain's intrinsic, large-scale functional architecture. An important data preprocessing step used to enhance the quality of these observations has been removal of spontaneous BOLD fluctuations common to the whole brain (the so-called g...
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Resting-state functional connectivity (RSFC) measured by functional magnetic resonance imaging has played an essential role in understanding neural circuitry and brain diseases. The vast majority of RSFC studies have been focused on positive RSFC, whereas our understanding about its conceptual counterpart - negative RSFC (i.e. anticorrelation) - remains elusive. To date, anticorrelated RSFC has...
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In this work, abundant anticorrelated networks were successfully detected in rest-stating fMRI-BOLD data from 20 subjects. Spatial independent component analysis (sICA) method was applied at both individual and group levels. At the individual level, for each subject, 30 independent components (IC) were estimated, and each IC was transformed using Z-score mapping. The voxels with >5 and < -5 Z-s...
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In the absence of any overt task performance, it has been shown that spontaneous, intrinsic brain activity is expressed as systemwide, resting-state networks in the adult brain. However, the route to adult patterns of resting-state activity through neuronal development in the human brain is currently unknown. Therefore, we used functional MRI to map patterns of resting-state activity in infants...
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RESTING-STATE HYPERCONNECTIVITY OF THE ANTICORRELATED INTRINSIC NETWORKS IN SCHIZOPHRENIC PATIENTS AND THEIR UNAFFECTED SIBLINGS. Yoshio Kaneko and Zhening Liu. Department of Psychiatry, Second Xiangya Hospital of Central South University, Changsha, P.R. China. (Sponsored by Robert Rohrbaugh, Department of Psychiatry, Yale University School of Medicine). Abnormal connectivity of the intrinsic a...
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ژورنال
عنوان ژورنال: Journal of Neurophysiology
سال: 2009
ISSN: 0022-3077,1522-1598
DOI: 10.1152/jn.90777.2008