User profiles for Hiroaki Norimoto

Hiroaki Norimoto

Hokkaido University
Verified email at pop.med.hokudai.ac.jp
Cited by 691

A claustrum in reptiles and its role in slow-wave sleep

H Norimoto, LA Fenk, HH Li, MA Tosches… - Nature, 2020 - nature.com
The mammalian claustrum, owing to its widespread connectivity with other forebrain
structures, has been hypothesized to mediate functions that range from decision-making to …

Hippocampal ripples down-regulate synapses

H Norimoto, K Makino, M Gao, Y Shikano, K Okamoto… - Science, 2018 - science.org
The specific effects of sleep on synaptic plasticity remain unclear. We report that mouse
hippocampal sharp-wave ripple oscillations serve as intrinsic events that trigger long-lasting …

Unbalanced excitability underlies offline reactivation of behaviorally activated neurons

M Mizunuma, H Norimoto, K Tao, T Egawa… - Nature …, 2014 - nature.com
Hippocampal sharp waves (SWs)/ripples represent the reactivation of neurons involved in
recently acquired memory and are crucial for memory consolidation. By labeling active cells …

Sleep sharp wave ripple and its functions in memory and synaptic plasticity

Z Zhou, H Norimoto - Neuroscience Research, 2023 - Elsevier
Memory is one of the fundamental cognitive functions of brain. The formation and consolidation
of memory depend on the hippocampus and sleep. Sharp wave ripple (SWR) is an …

Muscarinic receptor activation disrupts hippocampal sharp wave-ripples

H Norimoto, M Mizunuma, D Ishikawa, N Matsuki… - Brain research, 2012 - Elsevier
Cholinergic muscarinic innervations to the hippocampus play a role in learning and memory.
Here we report that pharmacological activation of muscarinic receptors eliminates sharp …

Central histamine boosts perirhinal cortex activity and restores forgotten object memories

H Nomura, H Mizuta, H Norimoto, F Masuda, Y Miura… - Biological …, 2019 - Elsevier
Background A method that promotes the retrieval of lost long-term memories has not been
well established. Histamine in the central nervous system is implicated in learning and …

[HTML][HTML] Ablation of microglia does not alter circadian rhythm of locomotor activity

…, R Kobayashi, S Ito, S Nagashima, Z Zhou, H Norimoto - Molecular brain, 2023 - Springer
Microglia, as macrophages in the brain, are responsible for immune responses and synaptic
remodeling. Although the function of microglia is regulated by circadian rhythms, it is still …

Layer III neurons control synchronized waves in the immature cerebral cortex

S Namiki, H Norimoto, C Kobayashi… - Journal of …, 2013 - Soc Neuroscience
Correlated spiking activity prevails in immature cortical networks and is believed to
contribute to neuronal circuit maturation; however, its spatiotemporal organization is not fully …

[PDF][PDF] Visual cortical prosthesis with a geomagnetic compass restores spatial navigation in blind rats

H Norimoto, Y Ikegaya - Current Biology, 2015 - cell.com
Allocentric sense is one of the major components that underlie spatial navigation [1, 2]. In
blind patients, the difficulty in spatial exploration is attributed, at least partly, to the deficit of …

[HTML][HTML] Dopamine Receptor Activation Reorganizes Neuronal Ensembles during Hippocampal Sharp Waves In Vitro

T Miyawaki, H Norimoto, T Ishikawa, Y Watanabe… - PloS one, 2014 - journals.plos.org
Hippocampal sharp wave (SW)/ripple complexes are thought to contribute to memory
consolidation. Previous studies suggest that behavioral rewards facilitate SW occurrence in vivo. …