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   Articles with "sharp wave" as a keyword



Lateralization of Hippocampal Dentate Spikes and Sharp‐Wave Ripples in Urethane Anesthetized Rats Depends on Cholinergic Tone

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recommendations! Published in 2025 at "Hippocampus"

DOI: 10.1002/hipo.70035

Abstract: Neural activity and bodily functions are inherently rhythmic and related to each other. The occurrence of hippocampal sharp‐wave ripples (SPW‐Rs) and dentate spikes (DSs) supporting memory consolidation is regulated by the overall state of the… read more here.

Keywords: wave ripples; parasympathetic tone; dentate spikes; sharp wave ... See more keywords
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RippleNet: a Recurrent Neural Network for Sharp Wave Ripple (SPW-R) Detection

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recommendations! Published in 2021 at "Neuroinformatics"

DOI: 10.1007/s12021-020-09496-2

Abstract: Hippocampal sharp wave ripples (SPW-R) have been identified as key bio-markers of important brain functions such as memory consolidation and decision making. Understanding their underlying mechanisms in healthy and pathological brain function and behaviour rely… read more here.

Keywords: detection; sharp wave; spw detection; recurrent neural ... See more keywords

Origin of Gamma Frequency Power during Hippocampal Sharp-Wave Ripples

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recommendations! Published in 2018 at "Cell reports"

DOI: 10.1016/j.celrep.2018.10.066

Abstract: SUMMARY Hippocampal sharp-wave ripples (SPW-Rs) support consolidation of recently acquired episodic memories and planning future actions by generating ordered neuronal sequences of previous or future experiences. SPW-Rs are characterized by several spectral components: a slow… read more here.

Keywords: frequency; sharp wave; power; hippocampal sharp ... See more keywords

A large majority of awake hippocampal sharp-wave ripples feature spatial trajectories with momentum

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recommendations! Published in 2022 at "Neuron"

DOI: 10.1016/j.neuron.2021.11.014

Abstract: During periods of rest, hippocampal place cells feature bursts of activity called sharp-wave ripples (SWRs). Heuristic approaches have revealed that a small fraction of SWRs appear to "simulate" trajectories through the environment, called awake hippocampal… read more here.

Keywords: awake hippocampal; sharp wave; trajectories momentum; wave ripples ... See more keywords

Spatiotemporal patterns differentiate hippocampal sharp-wave ripples from interictal epileptiform discharges in mice and humans.

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recommendations! Published in 2025 at "Nature communications"

DOI: 10.1038/s41467-025-66562-6

Abstract: Hippocampal sharp-wave ripples (SPW-Rs) are high-frequency oscillations critical for memory consolidation. Despite extensive characterization in rodents, their detection in humans is limited by coarse spatial sampling, interictal epileptiform discharges (IEDs), and a lack of consensus… read more here.

Keywords: wave ripples; epileptiform discharges; interictal epileptiform; sharp wave ... See more keywords

The hippocampal sharp wave–ripple in memory retrieval for immediate use and consolidation

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recommendations! Published in 2018 at "Nature Reviews Neuroscience"

DOI: 10.1038/s41583-018-0077-1

Abstract: Various cognitive functions have long been known to require the hippocampus. Recently, progress has been made in identifying the hippocampal neural activity patterns that implement these functions. One such pattern is the sharp wave–ripple (SWR),… read more here.

Keywords: wave ripple; memory retrieval; consolidation; sharp wave ... See more keywords

Self-supervised learning reduces label noise in sharp wave ripple classification

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recommendations! Published in 2025 at "Scientific Reports"

DOI: 10.1038/s41598-025-90380-x

Abstract: In the field of electrophysiological signal analysis, the classification of time-series datasets is essential. However, these datasets are often compromised by the prevalent issue of incorrect attribution of labels, known as label noise, which may… read more here.

Keywords: classification; self supervised; supervised learning; label noise ... See more keywords

A Novel Biophysical Model for the Generation of Sharp Wave Ripples in CA1 Hippocampus

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recommendations! Published in 2023 at "IEEE Transactions on Circuits and Systems II: Express Briefs"

DOI: 10.1109/tcsii.2023.3262207

Abstract: Synchronous activities among neurons in the brain generate emergent network oscillations such as the hippocampal Sharp-wave ripples (SPWRs) that facilitate information processing during memory formation. However, how neurons and circuits are functionally organized to generate… read more here.

Keywords: network; ca1 hippocampus; wave ripples; model ... See more keywords

Long-duration hippocampal sharp wave ripples improve memory

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recommendations! Published in 2019 at "Science"

DOI: 10.1126/science.aax0758

Abstract: Longer ripples make better memories Sharp wave ripples in the hippocampus are thought to play a role in memory formation and action planning. Fernández-Ruiz et al. used multisite electrophysiological recordings combined with optogenetic activation of… read more here.

Keywords: long duration; sharp wave; duration; hippocampal ... See more keywords

Probing subthreshold dynamics of hippocampal neurons by pulsed optogenetics

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recommendations! Published in 2022 at "Science"

DOI: 10.1126/science.abm1891

Abstract: Understanding how excitatory (E) and inhibitory (I) inputs are integrated by neurons requires monitoring their subthreshold behavior. We probed the subthreshold dynamics using optogenetic depolarizing pulses in hippocampal neuronal assemblies in freely moving mice. Excitability… read more here.

Keywords: place cells; sharp wave; place fields; excitability ... See more keywords

Selection of experience for memory by hippocampal sharp wave ripples

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recommendations! Published in 2024 at "Science"

DOI: 10.1126/science.adk8261

Abstract: Experiences need to be tagged during learning for further consolidation. However, neurophysiological mechanisms that select experiences for lasting memory are not known. By combining large-scale neural recordings in mice with dimensionality reduction techniques, we observed… read more here.

Keywords: wave ripples; memory; spw; sharp wave ... See more keywords