Functional connectivity arises from a slow rhythmic mechanism
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چکیده
منابع مشابه
Functional connectivity arises from a slow rhythmic mechanism
NEUROSCIENCE Correction for “Functional connectivity arises from a slow rhythmic mechanism,” by Jingfeng M. Li, William J. Bentley, Abraham Z. Snyder, Marcus E. Raichle, and Lawrence H. Snyder, which appeared in issue 19, May 12, 2015, of Proc Natl Acad Sci USA (112:E2527–E2535; first published April 27, 2015; 10.1073/ pnas.1419837112). The authors note that the author list should be updated to...
متن کاملCorrection for Li et al., Functional connectivity arises from a slow rhythmic mechanism.
The mechanism underlying temporal correlations among blood oxygen level-dependent signals is unclear. We used oxygen polarography to better characterize oxygen fluctuations and their correlation and to gain insight into the driving mechanism. The power spectrum of local oxygen fluctuations is inversely proportional to frequency raised to a power (1/f) raised to the beta, with an additional posi...
متن کاملFunctional connectivity in a rhythmic inhibitory circuit using Granger causality
BACKGROUND Understanding circuit function would be greatly facilitated by methods that allow the simultaneous estimation of the functional strengths of all of the synapses in the network during ongoing network activity. Towards that end, we used Granger causality analysis on electrical recordings from the pyloric network of the crab Cancer borealis, a small rhythmic circuit with known connectiv...
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Even well practiced movements cannot be repeated without variability. This variability is thought to reflect "noise" in movement preparation or execution. However, we show that, for both professional baseball pitchers and macaque monkeys making reaching movements, motor variability can be decomposed into two statistical components, a slowly drifting mean and fast trial-by-trial fluctuations abo...
متن کاملResting-state functional connectivity emerges from structurally and dynamically shaped slow linear fluctuations.
Brain fluctuations at rest are not random but are structured in spatial patterns of correlated activity across different brain areas. The question of how resting-state functional connectivity (FC) emerges from the brain's anatomical connections has motivated several experimental and computational studies to understand structure-function relationships. However, the mechanistic origin of resting ...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 2015
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.1419837112