| Term | Definition |
|---|---|
| Functional connectivity | Interactions between activity in multiple brain regions, typically assayed by measuring synchrony |
| Synchrony | Activity changes in two or more brain areas that occur together over time |
| Oscillation | Activity that goes up and down repeatedly over time within a defined frequency range, in a more-or-less circular fashion |
| Coherence | A frequency-specific measure of synchrony between two signals, reflects the consistency of their temporal relationship |
| Phase-locking | A measure of synchrony, reflects the degree to which neuronal action potentials occur at a particular phase of an oscillation |
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