Abstract：
:By combining computational, morphological, and functional analyses, this study relates latent markers of associative threat learning to overt post-traumatic stress disorder (PTSD) symptoms in combat veterans. Using reversal learning, we found that symptomatic veterans showed greater physiological adjustment to cues that did not predict what they had expected, indicating greater sensitivity to prediction errors for negative outcomes. This exaggerated weighting of prediction errors shapes the dynamic learning rate (associability) and value of threat predictive cues. The degree to which the striatum tracked the associability partially mediated the positive correlation between prediction-error weights and PTSD symptoms, suggesting that both increased prediction-error weights and decreased striatal tracking of associability independently contribute to PTSD symptoms. Furthermore, decreased neural tracking of value in the amygdala, in addition to smaller amygdala volume, independently corresponded to higher PTSD symptom severity. These results provide evidence for distinct neurocomputational contributions to PTSD symptoms.
journal_name
Nat Neuroscijournal_title
Nature neuroscienceauthors
Homan P,Levy I,Feltham E,Gordon C,Hu J,Li J,Pietrzak RH,Southwick S,Krystal JH,Harpaz-Rotem I,Schiller Ddoi
10.1038/s41593-018-0315-xsubject
Has Abstractpub_date
2019-03-01 00:00:00pages
470-476issue
3eissn
1097-6256issn
1546-1726pii
10.1038/s41593-018-0315-xjournal_volume
22pub_type
杂志文章abstract：:Processing of rapidly successive acoustic stimuli can be markedly improved by sensory training. To investigate the cortical mechanisms underlying such temporal plasticity, we trained rats in a 'sound maze' in which navigation using only auditory cues led to a target location paired with food reward. In this task, the ...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn1293
更新日期：2004-09-01 00:00:00
abstract：:Rapid eye movement (REM) sleep has been considered important for consolidation of memories, particularly of skills. Contrary to expectations, we found that REM sleep suppression by administration of selective serotonin or norepinephrine re-uptake inhibitors after training did not impair consolidation of skills or word...
journal_title：Nature neuroscience
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1038/nn.2206
更新日期：2009-04-01 00:00:00
abstract：:The structure and function of the human brain are highly stereotyped, implying a conserved molecular program responsible for its development, cellular structure and function. We applied a correlation-based metric called differential stability to assess reproducibility of gene expression patterning across 132 structure...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.4171
更新日期：2015-12-01 00:00:00
abstract：:Tau protein can transfer between neurons transneuronally and trans-synaptically, which is thought to explain the progressive spread of tauopathy observed in the brain of patients with Alzheimer's disease. Here we show that physiological tau released from donor cells can transfer to recipient cells via the medium, sugg...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.4328
更新日期：2016-08-01 00:00:00
abstract：:The olfactory system faces a hard problem: on the basis of noisy information from olfactory receptor neurons (the neurons that transduce chemicals to neural activity), it must figure out which odors are present in the world. Odors almost never occur in isolation, and different odors excite overlapping populations of o...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.4444
更新日期：2017-01-01 00:00:00
abstract：:Basal dendrites receive the majority of synapses that contact neocortical pyramidal neurons, yet our knowledge of synaptic processing in these dendrites has been hampered by their inaccessibility for electrical recordings. A new approach to patch-clamp recordings enabled us to characterize the integrative properties o...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn1826
更新日期：2007-02-01 00:00:00
abstract：:We delineated a heritable phenotype resulting from the self-administration of cocaine in rats. We observed delayed acquisition and reduced maintenance of cocaine self-administration in male, but not female, offspring of sires that self-administered cocaine. Brain-derived neurotrophic factor (Bdnf) mRNA and BDNF protei...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.3280
更新日期：2013-01-01 00:00:00
abstract：:Grid cells in layer II of the medial entorhinal cortex form a principal component of the mammalian neural representation of space. The firing pattern of a single grid cell has been hypothesized to be generated through attractor dynamics in a network with a specific local connectivity including both excitatory and inhi...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.3310
更新日期：2013-03-01 00:00:00
abstract：:Here, we characterized behavioral abnormalities induced by prolonged social isolation in adult rodents. Social isolation induced both anxiety- and anhedonia-like symptoms and decreased cAMP response element-binding protein (CREB) activity in the nucleus accumbens shell (NAcSh). All of these abnormalities were reversed...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.2257
更新日期：2009-02-01 00:00:00
abstract：:Items held in working memory can be either attended or not, depending on their current behavioral relevance. It has been suggested that unattended contents might be solely retained in an activity-silent form. Instead, we demonstrate here that encoding unattended contents involves a division of labor. While visual cort...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/s41593-018-0094-4
更新日期：2018-04-01 00:00:00
abstract：:When sleep followed implicit training on a motor sequence, children showed greater gains in explicit sequence knowledge after sleep than adults. This greater explicit knowledge in children was linked to their higher sleep slow-wave activity and to stronger hippocampal activation at explicit knowledge retrieval. Our da...
journal_title：Nature neuroscience
pub_type： 杂志文章,随机对照试验
doi：10.1038/nn.3343
更新日期：2013-04-01 00:00:00
abstract：:Nucleus accumbens (NAc) dopamine is widely implicated in mediating the reinforcing effects of drugs of abuse. However, the precise function of the NAc itself in drug self-administration has been difficult to establish. Here we show a neural double-dissociation of the behavioral processes that underlie cocaine self-adm...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn1217
更新日期：2004-04-01 00:00:00
abstract：:In severe hypoxia, homeostatic mechanisms maintain function of the brainstem respiratory network. We hypothesized that hypoxia involves a transition from neuronal mechanisms of normal breathing (eupnea) to a rudimentary pattern of inspiratory movements (gasping). We provide evidence for hypoxia-driven transformation w...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn1650
更新日期：2006-03-01 00:00:00
abstract：:Spillover of glutamate under physiological conditions has only been established as an adjunct to conventional synaptic transmission. Here we describe a pure spillover connection between the climbing fiber and molecular layer interneurons in the rat cerebellar cortex. We show that, instead of acting via conventional sy...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn1907
更新日期：2007-06-01 00:00:00
abstract：:Dot patterns sliding transparently across one another are normally perceived as independently moving surfaces. Recordings from direction-selective neurons in area MT of the macaque suggested that this perceptual segregation did not depend on the presence of two peaks in the population activity. Rather, the visual syst...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/72985
更新日期：2000-03-01 00:00:00
abstract：:Economic choice entails assigning values to the available options and is impaired by lesions to the orbitofrontal cortex (OFC). Recent results show that some neurons in the OFC encode the values that monkeys (Macaca mulatta) assign to different goods when they choose between them. A broad and fundamental question is h...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn2020
更新日期：2008-01-01 00:00:00
abstract：:Imaging, from magnetic resonance imaging (MRI) to localization of specific macromolecules by microscopies, has been one of the driving forces behind neuroinformatics efforts of the past decade. Many web-accessible resources have been created, ranging from simple data collections to highly structured databases. Althoug...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn1229
更新日期：2004-05-01 00:00:00
abstract：:Leptin regulates energy balance. However, knowledge of the critical intracellular transducers of leptin signaling remains incomplete. We found that Rho-kinase 1 (ROCK1) regulates leptin action on body weight homeostasis by activating JAK2, an initial trigger of leptin receptor signaling. Leptin promoted the physical i...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.3207
更新日期：2012-10-01 00:00:00
abstract：:The excitability of individual dendritic branches is a plastic property of neurons. We found that experience in an enriched environment increased propagation of dendritic Na(+) spikes in a subset of individual dendritic branches in rat hippocampal CA1 pyramidal neurons and that this effect was mainly mediated by local...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.2428
更新日期：2009-12-01 00:00:00
abstract：:The ventral intraparietal area (VIP) receives converging inputs from visual, somatosensory, auditory and vestibular systems that use diverse reference frames to encode sensory information. A key issue is how VIP combines those inputs together. We mapped the visual and tactile receptive fields of multimodal VIP neurons...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn1480
更新日期：2005-07-01 00:00:00
abstract：:Autism spectrum disorder (ASD) is genetically heterogeneous with convergent symptomatology, suggesting common dysregulated pathways. In this study, we analyzed brain transcriptional changes in five mouse models of Pitt-Hopkins syndrome (PTHS), a syndromic form of ASD caused by mutations in the TCF4 gene, but not the T...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/s41593-019-0578-x
更新日期：2020-03-01 00:00:00
abstract：:Axonal degeneration is important during development but has not been thought to function in the intact mature nervous system. Here, we provide evidence that degeneration of adult axons occurs in the intact rodent brain through a p75 neurotrophin receptor (p75NTR)- and myelin-dependent mechanism. Specifically, we show ...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.2513
更新日期：2010-05-01 00:00:00
abstract：:Selective attention filters information to limit what is encoded and maintained in working memory. Although the prefrontal cortex (PFC) is central to both selective attention and working memory, the underlying neural processes that link these cognitive abilities remain elusive. Using functional magnetic resonance imag...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.2773
更新日期：2011-05-01 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：:Vesicular release of neurotransmitter is the universal output signal of neurons in the brain. It is generally believed that fast transmitter release is restricted to nerve terminals that contact postsynaptic cells in the gray matter. Here we show in the rat brain that the neurotransmitter glutamate is also released at...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn1850
更新日期：2007-03-01 00:00:00
abstract：:The ability to attribute mental states to others, and therefore to predict others' behavior, is particularly advanced in humans. A controversial but untested idea is that this is achieved by simulating the other person's mental processes in one's own mind. If this is the case, then the same neural systems activated by...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn1168
更新日期：2004-01-01 00:00:00
abstract：:Several ion channels are thought to be directly modulated by nitric oxide (NO), but the molecular basis of this regulation is unclear. Here we show that the NMDA receptor (NMDAR)-associated ion channel was modulated not only by exogenous NO but also by endogenous NO. Site-directed mutagenesis identified a critical cys...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/71090
更新日期：2000-01-01 00:00:00
abstract：:Class I histone deacetylases (HDACs) Hdac1 and Hdac2 can associate together in protein complexes with transcriptional factors such as methyl-CpG-binding protein 2 (MeCP2). Given their high degree of sequence identity, we examined whether Hdac1 and Hdac2 were functionally redundant in mature mouse brain. We demonstrate...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.4395
更新日期：2016-11-01 00:00:00
abstract：:To determine the number of open Ca(2+) channels necessary for transmitter release at the inhibitory basket cell-granule cell synapse in rat hippocampus, we combined presynaptic Ca(2+) imaging, recording of postsynaptic currents and modeling. We found that that the opening of three or fewer Ca(2+) channels triggered tr...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.2461
更新日期：2010-01-01 00:00:00
abstract：:Mutations in copper/zinc superoxide dismutase 1 (SOD1), primary causes of human amyotrophic lateral sclerosis (ALS), provoke motor neuron death through an unidentified toxic property. The known neurofilament-dependent slowing of axonal transport, combined with the prominent misaccumulation of neurofilaments in ALS, su...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/4553
更新日期：1999-01-01 00:00:00
