Abstract：
:Hippocampal long-term potentiation (LTP) induced by theta-burst pairing of Schaffer collateral inputs and postsynaptic firing is associated with localized increases in synaptic strength and dendritic excitability. Using the same protocol, we now demonstrate a decrease in cellular excitability that was blocked by the h-channel blocker ZD7288. This decrease was also induced by postsynaptic theta-burst firing alone, yet it was blocked by NMDA receptor antagonists, postsynaptic Ca2+ chelation, low concentrations of tetrodotoxin, omega-conotoxin MVIIC, calcium/calmodulin-dependent protein kinase II (CaMKII) inhibitors and a protein synthesis inhibitor. Increasing network activity with high extracellular K+ caused a similar reduction of cellular excitability and an increase in h-channel HCN1 protein. We propose that backpropagating action potentials open glutamate-bound NMDA receptors, resulting in an increase in I(h) and a decrease in overall excitability. The occurrence of such a reduction in cellular excitability in parallel with synaptic potentiation would be a negative feedback mechanism to normalize neuronal output firing and thus promote network stability.
journal_name
Nat Neuroscijournal_title
Nature neuroscienceauthors
Fan Y,Fricker D,Brager DH,Chen X,Lu HC,Chitwood RA,Johnston Ddoi
10.1038/nn1568subject
Has Abstractpub_date
2005-11-01 00:00:00pages
1542-51issue
11eissn
1097-6256issn
1546-1726pii
nn1568journal_volume
8pub_type
杂志文章abstract：:Phasic activation of the dopamine (DA) midbrain system in response to unexpected reward or novelty is critical for adaptive behavioral strategies. This activation of DA midbrain neurons occurs via a synaptically triggered switch from low-frequency background spiking to transient high-frequency burst firing. We found t...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.3185
更新日期：2012-09-01 00:00:00
abstract：:Dendritic spikes signal synaptic integration at remote apical dendritic sites in neocortical pyramidal neurons in vitro. Do dendritic spikes have a salient signaling role under in vivo conditions, where neocortical pyramidal neurons are bombarded with synaptic input? In the present study, levels of synaptic conductanc...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn1305
更新日期：2004-09-01 00:00:00
abstract：:Uncovering structural regularities and architectural topologies of cortical circuitry is vital for understanding neural computations. Recently, an experimentally constrained algorithm generated a dense network reconstruction of a ∼0.3-mm3 volume from juvenile rat somatosensory neocortex, comprising ∼31,000 cells and ∼...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.4576
更新日期：2017-07-01 00:00:00
abstract：:The contribution of basal ganglia outputs to consummatory behavior remains poorly understood. We recorded from the substantia nigra pars reticulata (SNR), the major basal ganglia output nucleus, during self-initiated drinking in mice. The firing rates of many lateral SNR neurons were time-locked to individual licks. T...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.4285
更新日期：2016-05-01 00:00:00
abstract：:Timing is crucial to many aspects of human performance. To better understand its neural underpinnings, we used event-related fMRI to examine the time course of activation associated with different components of a time perception task. We distinguished systems associated with encoding time intervals from those related ...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/85191
更新日期：2001-03-01 00:00:00
abstract：:Successfully navigating in physical or semantic space requires a neural representation of allocentric (map-based) vectors to boundaries, objects and goals. Cognitive processes such as path-planning and imagination entail the recall of vector representations, but evidence of neuron-level memory for allocentric vectors ...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/s41593-020-00761-w
更新日期：2020-12-21 00:00:00
abstract：:The molecular trigger of CNS myelination is unknown. By targeting Pten in cerebellar granule cells and activating the AKT1-mTOR pathway, we increased the caliber of normally unmyelinated axons and the expression of numerous genes encoding regulatory proteins. This led to the expansion of genetically wild-type oligoden...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.4425
更新日期：2017-01-01 00:00:00
abstract：:Adult neurogenesis occurs in the hippocampus and the olfactory bulb of the mammalian CNS. Recent studies have demonstrated that newborn granule cells of the adult hippocampus are postsynaptic targets of excitatory and inhibitory neurons, but evidence of synapse formation by the axons of these cells is still lacking. B...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.2156
更新日期：2008-08-01 00:00:00
abstract：:Radial glial progenitor cells exhibit bidirectional cell cycle-dependent nuclear oscillations. The purpose and underlying mechanism of this unusual 'interkinetic nuclear migration' are poorly understood. We investigated the basis for this behavior by live imaging of nuclei, centrosomes and microtubules in embryonic ra...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.2665
更新日期：2010-12-01 00:00:00
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journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.3772
更新日期：2014-09-01 00:00:00
abstract：:In the version of this article initially published, the traces in Fig. 1j and in Fig. 1k, right, were duplicated from the corresponding traces in Fig. 1c, bottom, and Fig. 1d, bottom right. The error has been corrected in the HTML and PDF versions of the article. ...
journal_title：Nature neuroscience
pub_type： 已发布勘误
doi：10.1038/s41593-018-0183-4
更新日期：2018-09-01 00:00:00
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journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn1780
更新日期：2006-11-01 00:00:00
abstract：:Calcium arising through release from intracellular stores and from influx across the plasma membrane is essential for signalling by specific guidance cues and by factors that inhibit axon regeneration. The mediators of calcium influx in these cases are largely unknown. Transient receptor potential channels (TRPCs) bel...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn1459
更新日期：2005-06-01 00:00:00
abstract：:The output of cortical columns is routed to different downstream targets via distinct pathways: cortico-cortical and cortico-subcortical. It is as yet unclear what roles these pathways play in perception, and which cellular and circuit mechanisms regulate their gating. We recently showed that activation of the apical ...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/s41593-020-0677-8
更新日期：2020-10-01 00:00:00
abstract：:Synaptic vesicles release neurotransmitter both actively (on stimulation) and spontaneously (at rest). It has been assumed that identical vesicles use both modes of release; however, recent evidence has challenged this view. Using several assays (FM dye imaging, pHluorin imaging and antibody-labeling of synaptotagmin)...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.2690
更新日期：2010-12-01 00:00:00
abstract：:An amendment to this paper has been published and can be accessed via a link at the top of the paper. ...
journal_title：Nature neuroscience
pub_type： 已发布勘误
doi：10.1038/s41593-019-0570-5
更新日期：2020-02-01 00:00:00
abstract：:What neural activity in motor cortex represents and how it controls ongoing movement remain unclear. Suggestions that cortex generates low-level muscle control are discredited by correlations with higher-level parameters of hand movement, but no coherent alternative exists. I argue that the view of low-level control i...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/73964
更新日期：2000-04-01 00:00:00
abstract：:Understanding the transcriptional changes that are engaged in stress resilience may reveal novel antidepressant targets. Here we use gene co-expression analysis of RNA-sequencing data from brains of resilient mice to identify a gene network that is unique to resilience. Zfp189, which encodes a previously unstudied zin...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/s41593-019-0462-8
更新日期：2019-09-01 00:00:00
abstract：:Behavior-contingent network oscillations bring about transient, functionally coherent neuronal assemblies in the cerebral cortex, including the hippocampus. Inhibitory input on and close to the soma is believed to phase intrinsic oscillations and output of pyramidal cells, but the function of GABA release to pyramidal...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn1159
更新日期：2004-01-01 00:00:00
abstract：:The regulation of female reproductive behaviors may involve memories of male pheromone signatures, formed in part by neural circuitry involving the olfactory bulb and hippocampus. These neural structures are the principal sites of adult neurogenesis; however, previous studies point to their independent regulation by s...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn1928
更新日期：2007-08-01 00:00:00
abstract：:Myelinating cells, oligodendrocytes in the CNS and Schwann cells in the peripheral nervous system produce an enormous amount of plasma membrane during the myelination process, making them particularly susceptible to disruptions of the secretory pathway. Endoplasmic reticulum stress, initiated by the accumulation of un...
journal_title：Nature neuroscience
pub_type： 杂志文章,评审
doi：10.1038/nn.2273
更新日期：2009-04-01 00:00:00
abstract：:Sharp wave-associated field oscillations (∼200 Hz) of the hippocampus, referred to as ripples, are believed to be important for consolidation of explicit memory. Little is known about how ripples are regulated by other brain regions. We found that the median raphe region (MnR) is important for regulating hippocampal r...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.3998
更新日期：2015-05-01 00:00:00
abstract：:Active sensation requires the convergence of external stimuli with representations of body movements. We used mouse behavior, electrophysiology and optogenetics to dissect the temporal interactions among whisker movement, neural activity and sensation of touch. We photostimulated layer 4 activity in single barrels in ...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.3419
更新日期：2013-07-01 00:00:00
abstract：:A cognitive map has long been the dominant metaphor for hippocampal function, embracing the idea that place cells encode a geometric representation of space. However, evidence for predictive coding, reward sensitivity and policy dependence in place cells suggests that the representation is not purely spatial. We appro...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.4650
更新日期：2017-11-01 00:00:00
abstract：:Retinal bipolar cells have been assumed to generate purely graded responses to light. To test this idea we imaged the presynaptic calcium transient in live zebrafish. We found that ON, OFF, transient and sustained bipolar cells are all capable of generating fast 'all-or-none' calcium transients modulated by visual sti...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.2841
更新日期：2011-06-26 00:00:00
abstract：:The structure and function of presynaptic and postsynaptic compartments varies markedly in neurons, but little is known about how they are functionally arranged with respect to each other. In rat hippocampal neurons, we found that, although they are structurally correlated from the early moments of formation, synapses...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.2826
更新日期：2011-06-01 00:00:00
abstract：:The brain is the central organ involved in perceiving and adapting to social and physical stressors via multiple interacting mediators, from the cell surface to the cytoskeleton to epigenetic regulation and nongenomic mechanisms. A key result of stress is structural remodeling of neural architecture, which may be a si...
journal_title：Nature neuroscience
pub_type： 杂志文章,评审
doi：10.1038/nn.4086
更新日期：2015-10-01 00:00:00
abstract：:We found that optogenetic burst stimulation of hippocampal dopaminergic fibers from midbrain neurons in mice exploring novel environments enhanced the reactivation of pyramidal cell assemblies during subsequent sleep/rest. When applied during spatial learning of new goal locations, dopaminergic photostimulation improv...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.3843
更新日期：2014-12-01 00:00:00
abstract：:The hippocampus is often considered to be an important site for stress and learning interactions; however, it has never been demonstrated whether these effects require the hippocampus. In the current study, hippocampal lesions prevented both enhancements of learning after stress in male rats and impairments of learnin...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn1973
更新日期：2007-11-01 00:00:00
abstract：:The subunit composition of postsynaptic non-NMDA-type glutamate receptors (GluRs) determines the function and trafficking of the receptor. Changes in GluR composition have been implicated in the homeostasis of neuronal excitability and synaptic plasticity underlying learning. Here, we imaged GluRs in vivo during the f...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.2122
更新日期：2008-06-01 00:00:00
