neurophysiology Rapid fluctuations of voltage between parts of the cerebral cortex that are detectable with an electroencephalograph.

synonyms: brain wave, cortical potential.

The clear (and often sudden) understanding of a complex situation.

synonyms: brainstorm, insight.

Dutch: aha-erlebnis, gedachteflits, idee, ingeving, inval
Polish: olśnienie, objawienie, iluminacja