# Sharp-Wave Ripple **Domain:** Neurophysiology / Memory **Doc Type:** Scientific Concept Node **Maturity:** Established Phenomenon **Related:** [[Hippocampal Replay]], [[Electroencephalography]], [[Long-Term Memory Substrate]] --- ## Definition A **sharp-wave ripple** is a hippocampal population event involving a sharp-wave deflection and high-frequency oscillation, frequently associated with compressed replay and memory consolidation during rest or sleep. ## Continuity relevance Sharp-wave ripples illustrate that memory persistence depends on time-dependent physiological operations as well as retained anatomy. A static capture may preserve structure while omitting the dynamics that train or stabilize distributed representations.