Abstract：
:Entorhinal grid cells in mammals fire as a function of animal location, with spatially periodic response patterns. This nonlocal periodic representation of location, a local variable, is unlike other neural codes. There is no theoretical explanation for why such a code should exist. We examined how accurately the grid code with noisy neurons allows an ideal observer to estimate location and found this code to be a previously unknown type of population code with unprecedented robustness to noise. In particular, the representational accuracy attained by grid cells over the coding range was in a qualitatively different class from what is possible with observed sensory and motor population codes. We found that a simple neural network can effectively correct the grid code. To the best of our knowledge, these results are the first demonstration that the brain contains, and may exploit, powerful error-correcting codes for analog variables.
journal_name
Nat Neuroscijournal_title
Nature neuroscienceauthors
Sreenivasan S,Fiete Idoi
10.1038/nn.2901subject
Has Abstractpub_date
2011-09-11 00:00:00pages
1330-7issue
10eissn
1097-6256issn
1546-1726pii
nn.2901journal_volume
14pub_type
杂志文章abstract：:Ca(v)2.1 channels, which mediate P/Q-type Ca2+ currents, undergo Ca2+/calmodulin (CaM)-dependent inactivation and facilitation that can significantly alter synaptic efficacy. Here we report that the neuronal Ca2+-binding protein 1 (CaBP1) modulates Ca(v)2.1 channels in a manner that is markedly different from modulati...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn805
更新日期：2002-03-01 00:00:00
abstract：:We used fluorescent in-situ hybridization and confocal microscopy to monitor the subcellular distribution of the immediate-early gene Arc. Arc RNA appeared in discrete intranuclear foci within minutes of neuronal activation and subsequently disappeared from the nucleus and accumulated in the cytoplasm by 30 minutes. T...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/16046
更新日期：1999-12-01 00:00:00
abstract：:Unifying principles of movement have emerged from the computational study of motor control. We review several of these principles and show how they apply to processes such as motor planning, control, estimation, prediction and learning. Our goal is to demonstrate how specific models emerging from the computational app...
journal_title：Nature neuroscience
pub_type： 杂志文章,评审
doi：10.1038/81497
更新日期：2000-11-01 00:00:00
abstract：:Electrical stimulation of visual cortex can produce a visual percept (phosphene). We electrically stimulated visual cortex in humans implanted with subdural electrodes while recording from other brain sites. Phosphene perception occurred only if stimulation evoked high-frequency gamma oscillations in the temporopariet...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.3131
更新日期：2012-06-03 00:00:00
abstract：:Although the prefrontal cortex influences motivated behavior, its role in food intake remains unclear. Here, we demonstrate a role for D1-type dopamine receptor-expressing neurons in the medial prefrontal cortex (mPFC) in the regulation of feeding. Food intake increases activity in D1 neurons of the mPFC in mice, and ...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.3625
更新日期：2014-02-01 00:00:00
abstract：:Modeling of human neuropsychiatric disorders in animals is extremely challenging given the subjective nature of many symptoms, the lack of biomarkers and objective diagnostic tests, and the early state of the relevant neurobiology and genetics. Nonetheless, progress in understanding pathophysiology and in treatment de...
journal_title：Nature neuroscience
pub_type： 杂志文章,评审
doi：10.1038/nn.2647
更新日期：2010-10-01 00:00:00
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...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn1568
更新日期：2005-11-01 00:00:00
abstract：:Cocaine is a widely abused substance with psychostimulant effects that are attributed to inhibition of the dopamine transporter (DAT). We present molecular models for DAT binding of cocaine and cocaine analogs constructed from the high-resolution structure of the bacterial transporter homolog LeuT. Our models suggest ...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.2146
更新日期：2008-07-01 00:00:00
abstract：:Glycine receptors (GlyRs), together with GABA(A) and nicotinic acetylcholine (ACh) receptors, form part of the ligand-activated ion channel superfamily and regulate the excitability of the mammalian brain stem and spinal cord. Here we report that the ability of the neurotransmitter glycine to gate recombinant and nati...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn1095
更新日期：2003-08-01 00:00:00
abstract：:It is unclear how knowledge of one's actions and one's body contribute to the understanding of others' actions. Here we show that two subjects lacking cutaneous touch and sense of movement and position show a selective deficit in interpreting another person's anticipation of weight when seeing him lifting boxes. We su...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn1535
更新日期：2005-10-01 00:00:00
abstract：:An afterimage looks larger when one fixates on a distant than on a closer surface. We show that the retinotopic activity in the primary visual cortex (V1) associated with viewing an afterimage is modulated by perceived size, even when the size of the retinal image remains constant. This suggests that V1 has an importa...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.3069
更新日期：2012-03-11 00:00:00
abstract：:Bone morphogenetic proteins (BMPs), negative regulators of neural determination in the early embryo, were found to be potent inhibitors of neurogenesis in olfactory epithelium (OE) cultures. BMPs 2, 4 or 7 decreased the number of proliferating progenitor cells and blocked production of olfactory receptor neurons (ORNs...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/7251
更新日期：1999-04-01 00:00:00
abstract：:Much of the information processing in the brain occurs at the level of local circuits; however, the mechanisms underlying their initial development are poorly understood. We sought to examine the early development and plasticity of local excitatory circuits in the optic tectum of Xenopus laevis tadpoles. We found that...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn2076
更新日期：2008-04-01 00:00:00
abstract：:Predatory hunting plays a fundamental role in animal survival. Little is known about the neural circuits that convert sensory cues into neural signals to drive this behavior. Here we identified an excitatory subcortical neural circuit from the superior colliculus to the zona incerta that triggers predatory hunting. Th...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/s41593-019-0405-4
更新日期：2019-06-01 00:00:00
abstract：:The sensing of circulating nutrients within the mediobasal hypothalamus may be critical for energy homeostasis. To induce a sustained impairment in hypothalamic nutrient sensing, adeno-associated viruses (AAV) expressing malonyl-coenzyme A decarboxylase (MCD; an enzyme involved in the degradation of malonyl coenzyme A...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn1626
更新日期：2006-02-01 00:00:00
abstract：:The identity of specific cell types in the nervous system is defined by the expression of neuron type-specific gene batteries. How the expression of such batteries is initiated during nervous system development has been under intensive study over the past few decades. However, comparatively little is known about how g...
journal_title：Nature neuroscience
pub_type： 杂志文章,评审
doi：10.1038/nn.3731
更新日期：2014-07-01 00:00:00
abstract：:Individual behavioral performance during learning is known to be affected by modulatory factors, such as stress and motivation, and by genetic predispositions that influence sensitivity to these factors. Despite numerous studies, no integrative framework is available that could predict how a given animal would perform...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.2374
更新日期：2009-09-01 00:00:00
abstract：:A long-standing debate in neuroscience is whether classical and operant conditioning are mechanistically similar or distinct. The feeding behavior of Aplysia provides a model system suitable for addressing this question. Here we report that classical and operant conditioning of feeding behavior differentially modify t...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn1593
更新日期：2006-01-01 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：:Cue-triggered recall of learned temporal sequences is an important cognitive function that has been attributed to higher brain areas. Here recordings in both anesthetized and awake rats demonstrate that after repeated stimulation with a moving spot that evoked sequential firing of an ensemble of primary visual cortex ...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.3036
更新日期：2012-01-22 00:00:00
abstract：:The melanocortin system provides a conceptual blueprint for the central control of energetic state. Defined by four principal molecular components--two antagonistically acting ligands and two cognate receptors--this phylogenetically conserved system serves as a prototype for hierarchical energy balance regulation. Ove...
journal_title：Nature neuroscience
pub_type： 杂志文章,评审
doi：10.1038/nn.4202
更新日期：2016-02-01 00:00:00
abstract：:Although much learning occurs through direct experience of errors, humans and other animals can learn from the errors of other individuals. The medial frontal cortex (MFC) processes self-generated errors, but the neuronal architecture and mechanisms underlying the monitoring of others' errors are poorly understood. Ex...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.3180
更新日期：2012-09-01 00:00:00
abstract：:Huntington's disease (HD) is caused by an expansion of exonic CAG triplet repeats in the gene encoding huntingtin protein (Htt), but the mechanisms by which this mutant protein causes neurodegeneration remain unknown. Here we show that lymphoblast mitochondria from patients with HD have a lower membrane potential and ...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn884
更新日期：2002-08-01 00:00:00
abstract：:Previous work has shown that human adolescents may be hypersensitive to rewards, but it is not known which aspect of reward processing is responsible for this. We separated decision value and prediction error signals and found that neural prediction error signals in the striatum peaked in adolescence, whereas neural d...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.2558
更新日期：2010-06-01 00:00:00
abstract：:As we move through the environment, the pattern of visual motion on the retina provides rich information about our movement through the scene. Human subjects can use this information, often termed "optic flow", to accurately estimate their direction of self movement (heading) from relatively sparse displays. Physiolog...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/259
更新日期：1998-05-01 00:00:00
abstract：:The precise period when experience shapes neural circuits in the mouse visual system is unknown. We used Arc induction to monitor the functional pattern of ipsilateral eye representation in cortex during normal development and after visual deprivation. After monocular deprivation during the critical period, Arc induct...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn1410
更新日期：2005-03-01 00:00:00
abstract：:Axon degeneration is a hallmark of many neurodegenerative disorders. The current assumption is that the decision of injured axons to degenerate is cell-autonomously regulated. Here we show that Schwann cells (SCs), the glia of the peripheral nervous system, protect injured axons by virtue of a dramatic glycolytic upre...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/s41593-020-0689-4
更新日期：2020-10-01 00:00:00
abstract：:Microglia are primary immune sentinels of the CNS. Following injury, these cells migrate or extend processes toward sites of tissue damage. CNS injury is accompanied by release of nucleotides, serving as signals for microglial activation or chemotaxis. Microglia express several purinoceptors, including a G(i)-coupled ...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn1805
更新日期：2006-12-01 00:00:00
abstract：:Visual information is delivered to the brain by >40 types of retinal ganglion cells (RGCs). Diversity in this representation arises within the inner plexiform layer (IPL), where dendrites of each RGC type are restricted to specific sublaminae, limiting the interneuronal types that can innervate them. How such dendriti...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/s41593-018-0127-z
更新日期：2018-05-01 00:00:00
abstract：:Leucine-rich repeat kinase 2 (LRRK2) is enriched in the striatal projection neurons (SPNs). We found that LRRK2 negatively regulates protein kinase A (PKA) activity in the SPNs during synaptogenesis and in response to dopamine receptor Drd1 activation. LRRK2 interacted with PKA regulatory subunit IIβ (PKARIIβ). A lack...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.3636
更新日期：2014-03-01 00:00:00
