Name
Abstract | ||
|---|---|---|
Converging research suggests that the resting brain operates at the cusp of dynamic instability, as signified by scale-free temporal correlations. We asked whether the scaling properties of these correlations differ between amplitude and phase fluctuations, which may reflect different aspects of cortical functioning. Using source-reconstructed magneto-encephalographic signals, we found power-law scaling for the collective amplitude and for phase synchronization, both capturing whole-brain activity. The temporal changes of the amplitude comprise slow, persistent memory processes, whereas phase synchronization exhibits less temporally structured and more complex correlations, indicating a fast and flexible coding. This distinct temporal scaling supports the idea of different roles of amplitude and phase fluctuations in cortical functioning. |
Year | DOI | Venue |
|---|---|---|
2018 | 10.1016/j.neuroimage.2018.03.002 | NeuroImage |
Keywords | Field | DocType |
Power laws,Criticality,DFA,Amplitude,Phase | Control theory,Instability,Phase synchronization,Coding (social sciences),Criticality,Amplitude,Scaling,Mathematics | Journal |
Volume | Issue | ISSN |
180 | Part | 1053-8119 |
Citations | PageRank | References |
3 | 0.38 | 5 |
Authors | ||
5 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| A. Daffertshofer | 1 | 60 | 6.25 |
| Robert Ton | 2 | 13 | 1.65 |
| Morten L. Kringelbach | 3 | 185 | 21.07 |
| Mark W Woolrich | 4 | 1723 | 94.51 |
| Gustavo Deco | 5 | 1004 | 156.20 |