Kozma et al report brief periods of de-synchronization followed by intense synchronization.  They speculate that this may correspond to an “aha!” moment when things “fall into place”.  Interesting.

Kozma, Robert, Jeffery Jonathan Davis, and Walter J. Freeman. “Synchronized minima in ECoG power at frequencies between beta-gamma oscillations disclose cortical singularities in cognition.” Journal of Neuroscience and Neuroengineering 1.1 (2012): 13-23.

About the Author

The Miller Lab uses experimental and theoretical approaches to study the neural basis of the high-level cognitive functions that underlie complex goal-directed behavior. ekmillerlab.mit.edu