Abstract：
:Neural activity exhibits complex dynamics related to various brain functions, internal states and behaviors. Understanding how neural dynamics explain specific measured behaviors requires dissociating behaviorally relevant and irrelevant dynamics, which is not achieved with current neural dynamic models as they are learned without considering behavior. We develop preferential subspace identification (PSID), which is an algorithm that models neural activity while dissociating and prioritizing its behaviorally relevant dynamics. Modeling data in two monkeys performing three-dimensional reach and grasp tasks, PSID revealed that the behaviorally relevant dynamics are significantly lower-dimensional than otherwise implied. Moreover, PSID discovered distinct rotational dynamics that were more predictive of behavior. Furthermore, PSID more accurately learned behaviorally relevant dynamics for each joint and recording channel. Finally, modeling data in two monkeys performing saccades demonstrated the generalization of PSID across behaviors, brain regions and neural signal types. PSID provides a general new tool to reveal behaviorally relevant neural dynamics that can otherwise go unnoticed.
journal_name
Nat Neuroscijournal_title
Nature neuroscienceauthors
Sani OG,Abbaspourazad H,Wong YT,Pesaran B,Shanechi MMdoi
10.1038/s41593-020-00733-0subject
Has Abstractpub_date
2021-01-01 00:00:00pages
140-149issue
1eissn
1097-6256issn
1546-1726pii
10.1038/s41593-020-00733-0journal_volume
24pub_type
杂志文章abstract：:Temporal regulation of embryonic neurogenesis is controlled by hypostable transcription factors. The mechanism of the process is unclear. Here we show that the RNase III Drosha and DGCR8 (also known as Pasha), key components of the microRNA (miRNA) microprocessor, have important functions in mouse neurogenesis. Loss o...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.3139
更新日期：2012-06-17 00:00:00
abstract：:Individuals' risk attitudes are known to guide choices about uncertain options. However, in the presence of others' decisions, these choices can be swayed and manifest as riskier or safer behavior than one would express alone. To test the mechanisms underlying effective social 'nudges' in human decision-making, we use...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.4022
更新日期：2015-06-01 00:00:00
abstract：:High and low spatial frequency information in visual images is processed by distinct neural channels. Using event-related functional magnetic resonance imaging (fMRI) in humans, we show dissociable roles of such visual channels for processing faces and emotional fearful expressions. Neural responses in fusiform cortex...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn1057
更新日期：2003-06-01 00:00:00
abstract：:Population coding is widely regarded as an important mechanism for achieving reliable behavioral responses despite neuronal variability. However, standard reinforcement learning slows down with increasing population size, as the global reward signal becomes less and less related to the performance of any single neuron...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.2264
更新日期：2009-03-01 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：: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：: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：: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：:Activity in the primary auditory cortex (A1) is essential for normal sound localization behavior, but previous studies of the spatial sensitivity of neurons in A1 have found broad spatial tuning. We tested the hypothesis that spatial tuning sharpens when an animal engages in an auditory task. Cats performed a task tha...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.2713
更新日期：2011-01-01 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：:Here we used magnetoencephalography (MEG) to investigate stages of processing in face perception in humans. We found a face-selective MEG response occurring only 100 ms after stimulus onset (the 'M100'), 70 ms earlier than previously reported. Further, the amplitude of this M100 response was correlated with successful...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn909
更新日期：2002-09-01 00:00:00
abstract：:Neuronal activity-induced gene expression modulates the function and plasticity of the nervous system. It is unknown whether and to what extent neuronal activity may trigger changes in chromatin accessibility, a major mode of epigenetic regulation of gene expression. Here we compared chromatin accessibility landscapes...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.4494
更新日期：2017-03-01 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：:A central neuroscientific pursuit is understanding neuronal interactions that support computations underlying cognition and behavior. Although neurons interact across disparate scales, from cortical columns to whole-brain networks, research has been restricted to one scale at a time. We measured local interactions thr...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.3979
更新日期：2015-05-01 00:00:00
abstract：:The primate superior colliculus (SC) is a midbrain nucleus crucial for the control of rapid eye movements (saccades). Its neurons are topographically arranged over the rostrocaudal and mediolateral extent of its deeper layers so that saccade metrics (amplitude and direction) are coded in terms of the location of activ...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn727
更新日期：2001-10-01 00:00:00
abstract：:Nucleus HVc of the avian song system is a forebrain structure critical in song production, perception and learning. Here we show that most HVc neurons that respond to auditory stimuli under anesthesia show no responses to the same stimulus in the awake, unrestrained bird. This suppression of auditory responses in awak...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/2232
更新日期：1998-10-01 00:00:00
abstract：:Olfaction has often been described as a ‘synthetic’ sense. A study now reveals a surprising capacity to resolve individual odorants in complex mixtures, with implications for how the nervous system recognizes objects. ...
journal_title：Nature neuroscience
pub_type： 评论,杂志文章
doi：10.1038/nn.3796
更新日期：2014-09-01 00:00:00
abstract：:Neuronal migration disorders such as lissencephaly and subcortical band heterotopia are associated with epilepsy and intellectual disability. DCX, PAFAH1B1 and TUBA1A are mutated in these disorders; however, corresponding mouse mutants do not show heterotopic neurons in the neocortex. In contrast, spontaneously arisen...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.3729
更新日期：2014-07-01 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：:Long-term synaptic changes, which are essential for learning and memory, are dependent on homeostatic mechanisms that stabilize neural activity. Homeostatic responses have also been implicated in pathological conditions, including nicotine addiction. Although multiple homeostatic pathways have been described, little i...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.2969
更新日期：2011-11-13 00:00:00
abstract：:In mammals, olfaction is often used to distinguish individuals on the basis of their unique odor types (genetically programmed body odors). Parental-offspring recognition behavior is mediated, in part, by learning and processing of different odor types and is crucial for reproductive success. Maternal recognition beha...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.2550
更新日期：2010-06-01 00:00:00
abstract：:Fever is a result of the action of prostaglandin E2 (PGE2) on the brain and appears to require EP3 prostaglandin receptors (EP3Rs), but the specific neurons on which PGE2 acts to produce fever have not been definitively established. Here we report that selective genetic deletion of the EP3Rs in the median preoptic nuc...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn1949
更新日期：2007-09-01 00:00:00
abstract：:Changes in spine morphology may underlie memory formation, but the molecular mechanisms that subserve such alterations are poorly understood. Here we show that fear conditioning in rats leads to the movement of profilin, an actin polymerization-regulatory protein, into dendritic spines in the lateral amygdala and that...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn1672
更新日期：2006-04-01 00:00:00
abstract：:The 'cognitive map' hypothesis proposes that brain builds a unified representation of the spatial environment to support memory and guide future action. Forty years of electrophysiological research in rodents suggest that cognitive maps are neurally instantiated by place, grid, border and head direction cells in the h...
journal_title：Nature neuroscience
pub_type： 杂志文章,评审
doi：10.1038/nn.4656
更新日期：2017-10-26 00:00:00
abstract：:In the version of this article initially published, paragraph 8 mentioned intra-accumbens administration of SB334867. This should have read systemic (intraperitoneal) administration. 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/s41593-018-0111-7
更新日期：2018-06-01 00:00:00
abstract：:Shared neural variability is ubiquitous in cortical populations. While this variability is presumed to arise from overlapping synaptic input, its precise relationship to local circuit architecture remains unclear. We combine computational models and in vivo recordings to study the relationship between the spatial stru...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.4433
更新日期：2017-01-01 00:00:00
abstract：:Replay of hippocampal place cell sequences has been proposed as a fundamental mechanism of learning and memory. However, the standard interpretation of replay has been challenged by reports that similar activity is observed before experience ('preplay'). By the preplay account, pre-existing temporal sequences are mapp...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn.4151
更新日期：2015-12-01 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：: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：:Parkinson disease is a neurodegenerative disorder whose symptoms are caused by the loss of dopaminergic neurons innervating the striatum. As striatal dopamine levels fall, striatal acetylcholine release rises, exacerbating motor symptoms. This adaptation is commonly attributed to the loss of interneuronal regulation b...
journal_title：Nature neuroscience
pub_type： 杂志文章
doi：10.1038/nn1700
更新日期：2006-06-01 00:00:00
