A lognormal recurrent network model for burst generation during hippocampal sharp waves

Y Omura, MM Carvalho, K Inokuchi… - Journal of …, 2015 - Soc Neuroscience
The strength of cortical synapses distributes lognormally, with a long tail of strong synapses.
Various properties of neuronal activity, such as the average firing rates of neurons, the rate …

Inhibitory control of sharp-wave ripple duration during learning in hippocampal recurrent networks

B Vancura, T Geiller, A Grosmark, V Zhao… - Nature …, 2023 - nature.com
Recurrent excitatory connections in hippocampal regions CA3 and CA2 are thought to play
a key role in the generation of sharp-wave ripples (SWRs), electrophysiological oscillations …

[PDF][PDF] Membrane potential dynamics of CA1 pyramidal neurons during hippocampal ripples in awake mice

BK Hulse, LC Moreaux, EV Lubenov, AG Siapas - Neuron, 2016 - cell.com
Ripples are high-frequency oscillations associated with population bursts in area CA1 of the
hippocampus that play a prominent role in theories of memory consolidation. While spiking …

[HTML][HTML] Normal and abnormal sharp wave ripples in the hippocampal-entorhinal cortex system: implications for memory consolidation, Alzheimer's disease, and …

ZH Zhen, MR Guo, HM Li, OY Guo, JL Zhen… - Frontiers in Aging …, 2021 - frontiersin.org
The appearance of hippocampal sharp wave ripples (SWRs) is an electrophysiological
biomarker for episodic memory encoding and behavioral planning. Disturbed SWRs are …

Hippocampal ripples signal contextually mediated episodic recall

JJ Sakon, MJ Kahana - Proceedings of the National …, 2022 - National Acad Sciences
High-frequency oscillatory events, termed ripples, represent synchrony of neural activity in
the brain. Recent evidence suggests that medial temporal lobe (MTL) ripples support …

Topological analysis of sharp-wave ripple waveforms reveals input mechanisms behind feature variations

ER Sebastian, JP Quintanilla, A Sánchez-Aguilera… - Nature …, 2023 - nature.com
The reactivation of experience-based neural activity patterns in the hippocampus is crucial
for learning and memory. These reactivation patterns and their associated sharp-wave …

[PDF][PDF] Sharp-wave ripples in primates are enhanced near remembered visual objects

TK Leonard, KL Hoffman - Current Biology, 2017 - cell.com
The hippocampus plays an important role in memory for events that are distinct in space and
time. One of the strongest, most synchronous neural signals produced by the hippocampus …

[PDF][PDF] Hippocampal ripples and their coordinated dialogue with the default mode network during recent and remote recollection

Y Norman, O Raccah, S Liu, J Parvizi, R Malach - Neuron, 2021 - cell.com
Hippocampal ripples are prominent synchronization events generated by hippocampal
neuronal assemblies. To date, ripples have been primarily associated with navigational …

Hippocampal sharp-wave ripples linked to visual episodic recollection in humans

Y Norman, EM Yeagle, S Khuvis, M Harel, AD Mehta… - Science, 2019 - science.org
INTRODUCTION Sharp-wave ripples (SWRs) are rapid bursts of synchronized neuronal
activity elicited by the hippocampus. Extensive study of SWRs, mainly in the rodent brain …

[PDF][PDF] Reverse replay of hippocampal place cells is uniquely modulated by changing reward

RE Ambrose, BE Pfeiffer, DJ Foster - Neuron, 2016 - cell.com
Hippocampal replays are episodes of sequential place cell activity during sharp-wave ripple
oscillations (SWRs). Conflicting hypotheses implicate awake replay in learning from reward …