Thalamic model of awake alpha oscillations and implications for stimulus processing.

Abstract:

:We describe a unique conductance-based model of awake thalamic alpha and some of its implications for function. The full model includes a model for a specialized class of high-threshold thalamocortical cells (HTC cells), which burst at the alpha frequency at depolarized membrane potentials (~-56 mV). Our model generates alpha activity when the actions of either muscarinic acetylcholine receptor (mAChR) or metabotropic glutamate receptor 1 (mGluR1) agonists on thalamic reticular (RE), thalamocortical (TC), and HTC cells are mimicked. In our model of mGluR1-induced alpha, TC cells are equally likely to fire during any phase of alpha, consistent with in vitro experiments. By contrast, in our model of mAChR-induced alpha, TC cells tend to fire either at the peak or the trough of alpha, depending on conditions. Our modeling suggests that low levels of mGluR1 activation on a background of mAChR agonists may be able to initiate alpha activity that biases TC cells to fire at certain phases of alpha, offering a pathway for cortical control. If we introduce a strong stimulus by increasing the frequency of excitatory postsynaptic potentials (EPSPs) to TC cells, an increase in alpha power is needed to mimic the level of phasing of TC cells observed in vivo. This increased alpha power reduces the probability that TC cells spike near the trough of alpha. We suggest that mAChR-induced alpha may contribute to grouping TC activity into discrete perceptual units for processing, whereas mGluR1-induced alpha may serve the purpose of blocking unwanted stimuli from reaching the cortex.

authors

Vijayan S,Kopell NJ

doi

10.1073/pnas.1215385109

subject

Has Abstract

pub_date

2012-11-06 00:00:00

pages

18553-8

issue

45

eissn

0027-8424

issn

1091-6490

pii

1215385109

journal_volume

109

pub_type

杂志文章
  • High-throughput patterning of photonic structures with tunable periodicity.

    abstract::A patterning method termed "RIPPLE" (reactive interface patterning promoted by lithographic electrochemistry) is applied to the fabrication of arrays of dielectric and metallic optical elements. This method uses cyclic voltammetry to impart patterns onto the working electrode of a standard three-electrode electrochemi...

    journal_title:Proceedings of the National Academy of Sciences of the United States of America

    pub_type: 杂志文章

    doi:10.1073/pnas.1504280112

    authors: Kempa TJ,Bediako DK,Kim SK,Park HG,Nocera DG

    更新日期:2015-04-28 00:00:00

  • Illegitimate Cre-dependent chromosome rearrangements in transgenic mouse spermatids.

    abstract::The bacteriophage P1 Cre/loxP system has become a powerful tool for in vivo manipulation of the genomes of transgenic mice. Although in vitro studies have shown that Cre can catalyze recombination between cryptic "pseudo-loxP" sites in mammalian genomes, to date there have been no reports of loxP-site infidelity in tr...

    journal_title:Proceedings of the National Academy of Sciences of the United States of America

    pub_type: 杂志文章

    doi:10.1073/pnas.240471297

    authors: Schmidt EE,Taylor DS,Prigge JR,Barnett S,Capecchi MR

    更新日期:2000-12-05 00:00:00

  • Designing biomimetic pores based on carbon nanotubes.

    abstract::Biomimetic nanopores based on membrane-spanning single-walled carbon nanotubes have been designed to include selectivity filters based on combinations of anionic and cationic groups mimicking those present in bacterial porins and in voltage-gated sodium and calcium channels. The ion permeation and selectivity properti...

    journal_title:Proceedings of the National Academy of Sciences of the United States of America

    pub_type: 杂志文章

    doi:10.1073/pnas.1119326109

    authors: García-Fandiño R,Sansom MS

    更新日期:2012-05-01 00:00:00

  • Mitogen-activated protein kinase pathways defend against bacterial pore-forming toxins.

    abstract::Cytolytic pore-forming toxins are important for the virulence of many disease-causing bacteria. How target cells molecularly respond to these toxins and whether or not they can mount a defense are poorly understood. By using microarrays, we demonstrate that the nematode Caenorhabditis elegans responds robustly to Cry5...

    journal_title:Proceedings of the National Academy of Sciences of the United States of America

    pub_type: 杂志文章

    doi:10.1073/pnas.0404073101

    authors: Huffman DL,Abrami L,Sasik R,Corbeil J,van der Goot FG,Aroian RV

    更新日期:2004-07-27 00:00:00

  • Infectious amyloid precursor gene sequences in primates used for experimental transmission of human spongiform encephalopathy.

    abstract::Based on the analysis of genomic DNA from single healthy animals of each of five primate species, nucleotide and predicted amino acid sequences of the infectious amyloid precursor gene of higher apes (Gorilla and Pan) and Old World (Macaca) and New World (Ateles, Saimiri) monkeys showed 95-99% homology to the human se...

    journal_title:Proceedings of the National Academy of Sciences of the United States of America

    pub_type: 杂志文章

    doi:10.1073/pnas.91.25.12159

    authors: Cervenáková L,Brown P,Goldfarb LG,Nagle J,Pettrone K,Rubenstein R,Dubnick M,Gibbs CJ Jr,Gajdusek DC

    更新日期:1994-12-06 00:00:00

  • Activation of contact-dependent antibacterial tRNase toxins by translation elongation factors.

    abstract::Contact-dependent growth inhibition (CDI) is a mechanism by which bacteria exchange toxins via direct cell-to-cell contact. CDI systems are distributed widely among Gram-negative pathogens and are thought to mediate interstrain competition. Here, we describe tsf mutations that alter the coiled-coil domain of elongatio...

    journal_title:Proceedings of the National Academy of Sciences of the United States of America

    pub_type: 杂志文章

    doi:10.1073/pnas.1619273114

    authors: Jones AM,Garza-Sánchez F,So J,Hayes CS,Low DA

    更新日期:2017-03-07 00:00:00

  • Complementation of the temperature-sensitive defect in H5ts125 adenovirus DNA replication in vitro.

    abstract::Soluble extracts of adenovirus-infected HeLa cell nuclei support DNA replication on exogenous adenovirus DNA templates. Conditions of synthesis using both wild-type and temperature-sensitive extracts have been defined. Nuclear extracts prepared from cells permissively infected with the adenovirus mutant H5ts125 expres...

    journal_title:Proceedings of the National Academy of Sciences of the United States of America

    pub_type: 杂志文章

    doi:10.1073/pnas.76.11.5534

    authors: Kaplan LM,Ariga H,Hurwitz J,Horwitz MS

    更新日期:1979-11-01 00:00:00

  • Transgenic planarian lines obtained by electroporation using transposon-derived vectors and an eye-specific GFP marker.

    abstract::To generate transgenic planarians we used a set of versatile vectors for animal transgenesis based on the promiscuous transposons, mariner, Hermes and piggyBac, and a universal enhanced GFP (EGFP) marker system with three Pax6 dimeric binding sites, the 3xP3-EGFP developed by Berghammer et al. [Berghammer, A. J., Klin...

    journal_title:Proceedings of the National Academy of Sciences of the United States of America

    pub_type: 杂志文章

    doi:10.1073/pnas.2335980100

    authors: González-Estévez C,Momose T,Gehring WJ,Saló E

    更新日期:2003-11-25 00:00:00

  • Holdase activity of secreted Hsp70 masks amyloid-β42 neurotoxicity in Drosophila.

    abstract::Alzheimer's disease (AD) is the most prevalent of a large group of related proteinopathies for which there is currently no cure. Here, we used Drosophila to explore a strategy to block Aβ42 neurotoxicity through engineering of the Heat shock protein 70 (Hsp70), a chaperone that has demonstrated neuroprotective activit...

    journal_title:Proceedings of the National Academy of Sciences of the United States of America

    pub_type: 杂志文章

    doi:10.1073/pnas.1608045113

    authors: Fernandez-Funez P,Sanchez-Garcia J,de Mena L,Zhang Y,Levites Y,Khare S,Golde TE,Rincon-Limas DE

    更新日期:2016-08-30 00:00:00

  • "Alternating B-DNA" conformation for the oligo(dG-dC) duplex in high-salt solution.

    abstract::The high resolution 1H and 31P NMR spectra of the (dG-dC)8 duplex have been recorded in low- and high-salt solutions in order to evaluate the structural aspects of the salt-induced transition of oligo(dG-dC) in solution [Pohl, F. M. & Jovin, T. M. (1972) J. Mol. Biol. 67, 375-396]. The NMR data require that the (dG-d...

    journal_title:Proceedings of the National Academy of Sciences of the United States of America

    pub_type: 杂志文章

    doi:10.1073/pnas.76.6.2508

    authors: Patel DJ,Canuel LL,Pohl FM

    更新日期:1979-06-01 00:00:00

  • Induction of translocations in mature Drosophila oocytes over a dose range of 10-500 Roentgens of x-rays.

    abstract::Data are presented that demonstrate that a dose of 10 R of x-rays to mature oocytes in Drosophila causes a significant increase, more than double the spontaneous frequency, of inherited translocations. The dose-frequency relationship appears to fit best a linear response between 10 and 50 R. From 50 to 500 R, the freq...

    journal_title:Proceedings of the National Academy of Sciences of the United States of America

    pub_type: 杂志文章

    doi:10.1073/pnas.68.6.1095

    authors: Abrahamson S,Gullifor P,Sabol E,Voigtlander J

    更新日期:1971-06-01 00:00:00

  • Immunization with hepatitis C virus-like particles protects mice from recombinant hepatitis C virus-vaccinia infection.

    abstract::We have recently demonstrated that immunization with hepatitis C virus-like particles (HCV-LPs) generated in insect cells can elicit both humoral and cellular immune responses in BALB/c mice. Here, we evaluate the immunogenicity of HCV-LPs in HLA2.1 transgenic (AAD) mice in comparison to DNA immunization. HCV-LP immun...

    journal_title:Proceedings of the National Academy of Sciences of the United States of America

    pub_type: 杂志文章

    doi:10.1073/pnas.1131929100

    authors: Murata K,Lechmann M,Qiao M,Gunji T,Alter HJ,Liang TJ

    更新日期:2003-05-27 00:00:00

  • Structural characterization of the D290V mutation site in hnRNPA2 low-complexity-domain polymers.

    abstract::Human genetic studies have given evidence of familial, disease-causing mutations in the analogous amino acid residue shared by three related RNA binding proteins causative of three neurological diseases. Alteration of aspartic acid residue 290 of hnRNPA2 to valine is believed to predispose patients to multisystem prot...

    journal_title:Proceedings of the National Academy of Sciences of the United States of America

    pub_type: 杂志文章

    doi:10.1073/pnas.1806174115

    authors: Murray DT,Zhou X,Kato M,Xiang S,Tycko R,McKnight SL

    更新日期:2018-10-16 00:00:00

  • Stereospecific binding of propranolol and catecholamines to the beta-adrenergic receptor.

    abstract::The stereospecificity of the beta-adrenergic receptor of turkey erythrocyte ghosts was studied. Binding of the specific beta-adrenergic antagonist, propranolol, was found to occur exclusively with the l-stereoisomer. The stereospecificity of catecholamine binding was determined by assaying the ability of the catechola...

    journal_title:Proceedings of the National Academy of Sciences of the United States of America

    pub_type: 杂志文章

    doi:10.1073/pnas.71.10.4246

    authors: Atlas D,Steer ML,Levitzki A

    更新日期:1974-10-01 00:00:00

  • A mutation in the peroxisome proliferator-activated receptor gamma-binding site in the gene for the cytosolic form of phosphoenolpyruvate carboxykinase reduces adipose tissue size and fat content in mice.

    abstract::Regulation of the turnover of triglycerides in adipose tissue requires the continuous provision of 3-glycerophosphate, which may be supplied by the metabolism of glucose or by glyceroneogenesis, the de novo synthesis of 3-glycerophosphate from sources other than hexoses or glycerol. The importance of glyceroneogenesis...

    journal_title:Proceedings of the National Academy of Sciences of the United States of America

    pub_type: 杂志文章

    doi:10.1073/pnas.022616299

    authors: Olswang Y,Cohen H,Papo O,Cassuto H,Croniger CM,Hakimi P,Tilghman SM,Hanson RW,Reshef L

    更新日期:2002-01-22 00:00:00

  • Signatures of replication timing, recombination, and sex in the spectrum of rare variants on the human X chromosome and autosomes.

    abstract::The sources of human germline mutations are poorly understood. Part of the difficulty is that mutations occur very rarely, and so direct pedigree-based approaches remain limited in the numbers that they can examine. To address this problem, we consider the spectrum of low-frequency variants in a dataset (Genome Aggreg...

    journal_title:Proceedings of the National Academy of Sciences of the United States of America

    pub_type: 杂志文章

    doi:10.1073/pnas.1900714116

    authors: Agarwal I,Przeworski M

    更新日期:2019-09-03 00:00:00

  • Sharing of T cell receptors in antigen-specific responses is driven by convergent recombination.

    abstract::Public responses where identical T cell receptors (TCRs) are clonally dominant and shared between different individuals are a common characteristic of CD8(+) T cell-mediated immunity. Focusing on TCR sharing, we analyzed approximately 3,400 TCR beta chains (TCRbetas) from mouse CD8(+) T cells responding to the influen...

    journal_title:Proceedings of the National Academy of Sciences of the United States of America

    pub_type: 杂志文章

    doi:10.1073/pnas.0608907103

    authors: Venturi V,Kedzierska K,Price DA,Doherty PC,Douek DC,Turner SJ,Davenport MP

    更新日期:2006-12-05 00:00:00

  • Influence of calorie restriction on oncogene expression and DNA synthesis during liver regeneration.

    abstract::Controlling calorie intake (CCI) extends healthful life-span by a mechanism that may involve reduced rates of cell division without detriment to inducible cellular responses. To test whether inducible cellular proliferation is preserved by CCI and whether the mRNA expression levels of oncogenes activated by cell divis...

    journal_title:Proceedings of the National Academy of Sciences of the United States of America

    pub_type: 杂志文章

    doi:10.1073/pnas.89.12.5497

    authors: Himeno Y,Engelman RW,Good RA

    更新日期:1992-06-15 00:00:00

  • Cable bacteria generate a firewall against euxinia in seasonally hypoxic basins.

    abstract::Seasonal oxygen depletion (hypoxia) in coastal bottom waters can lead to the release and persistence of free sulfide (euxinia), which is highly detrimental to marine life. Although coastal hypoxia is relatively common, reports of euxinia are less frequent, which suggests that certain environmental controls can delay t...

    journal_title:Proceedings of the National Academy of Sciences of the United States of America

    pub_type: 杂志文章

    doi:10.1073/pnas.1510152112

    authors: Seitaj D,Schauer R,Sulu-Gambari F,Hidalgo-Martinez S,Malkin SY,Burdorf LD,Slomp CP,Meysman FJ

    更新日期:2015-10-27 00:00:00

  • Modification of RelA by O-linked N-acetylglucosamine links glucose metabolism to NF-κB acetylation and transcription.

    abstract::The molecular mechanisms linking glucose metabolism with active transcription remain undercharacterized in mammalian cells. Using nuclear factor-κB (NF-κB) as a glucose-responsive transcription factor, we show that cells use the hexosamine biosynthesis pathway and O-linked β-N-acetylglucosamine (O-GlcNAc) transferase ...

    journal_title:Proceedings of the National Academy of Sciences of the United States of America

    pub_type: 杂志文章

    doi:10.1073/pnas.1208468109

    authors: Allison DF,Wamsley JJ,Kumar M,Li D,Gray LG,Hart GW,Jones DR,Mayo MW

    更新日期:2012-10-16 00:00:00

  • Specific 5' flanking sequences are required for faithful initiation of in vitro transcription of the ovalbumin gene.

    abstract::An in vitro system [Weil, P. A., Luse, D. S., Segall, J. & Roeder, R. G. (1979) Cell 18, 469-484 and Manley, J. L., Fire, A., Cano, A., Sharp, P. A. & Gefter, M. L., (1980) Proc. Natl. Acad. Sci USA 77, 3855-3859] was adapted for studying initiation of transcription of the ovalbumin gene. The DNA template was a cloned...

    journal_title:Proceedings of the National Academy of Sciences of the United States of America

    pub_type: 杂志文章

    doi:10.1073/pnas.78.2.879

    authors: Tsai SY,Tsai MJ,O'Malley BW

    更新日期:1981-02-01 00:00:00

  • Peroxisomal D-hydroxyacyl-CoA dehydrogenase deficiency: resolution of the enzyme defect and its molecular basis in bifunctional protein deficiency.

    abstract::Peroxisomes play an essential role in a number of different metabolic pathways, including the beta-oxidation of a distinct set of fatty acids and fatty acid derivatives. The importance of the peroxisomal beta-oxidation system in humans is made apparent by the existence of a group of inherited diseases in which peroxis...

    journal_title:Proceedings of the National Academy of Sciences of the United States of America

    pub_type: 杂志文章

    doi:10.1073/pnas.95.5.2128

    authors: van Grunsven EG,van Berkel E,Ijlst L,Vreken P,de Klerk JB,Adamski J,Lemonde H,Clayton PT,Cuebas DA,Wanders RJ

    更新日期:1998-03-03 00:00:00

  • Variable numbers of pepsinogen genes are located in the centromeric region of human chromosome 11 and determine the high-frequency electrophoretic polymorphism.

    abstract::A panel of 26 mouse-human somatic cell hybrids containing different human chromosome complements was analyzed with a cloned human pepsinogen cDNA probe to determine the chromosomal location and the number of genes encoding these proteins. A complex containing variable numbers of pepsinogen genes was localized to the c...

    journal_title:Proceedings of the National Academy of Sciences of the United States of America

    pub_type: 杂志文章

    doi:10.1073/pnas.82.18.6240

    authors: Taggart RT,Mohandas TK,Shows TB,Bell GI

    更新日期:1985-09-01 00:00:00

  • Interaction of purified type IIB von Willebrand factor with the platelet membrane glycoprotein Ib induces fibrinogen binding to the glycoprotein IIb/IIIa complex and initiates aggregation.

    abstract::Von Willebrand factor (vWF) was purified from the plasma of a patient with type IIB von Willebrand disease (vWF from such a patient, IIB vWF) who had a normal platelet count and showed no evidence of spontaneous platelet aggregation. Large multimers of IIB vWF were absent from purified preparations and from plasma. Ri...

    journal_title:Proceedings of the National Academy of Sciences of the United States of America

    pub_type: 杂志文章

    doi:10.1073/pnas.82.21.7424

    authors: De Marco L,Girolami A,Zimmerman TS,Ruggeri ZM

    更新日期:1985-11-01 00:00:00

  • ATP-dependent bioluminescence in the firefly squid, Watasenia scintillans.

    abstract::The Japanese firefly squid, Watasenia scintillans, emits intense flashes of light from three tiny luminous organs that are located at the tip of each of a pair of ventral arms. Light is also produced from hundreds of other minute organs that are scattered over the body. The luminescence is due to an ATP-dependent reac...

    journal_title:Proceedings of the National Academy of Sciences of the United States of America

    pub_type: 杂志文章

    doi:10.1073/pnas.82.14.4629

    authors: Tsuji FI

    更新日期:1985-07-01 00:00:00

  • Structural basis for recruitment of CBP/p300 by hypoxia-inducible factor-1 alpha.

    abstract::Adaptation to hypoxia is mediated by transactivation of hypoxia-responsive genes by hypoxia-inducible factor-1 (HIF-1) in complex with the CBP and p300 transcriptional coactivators. We report the solution structure of the cysteine/histidine-rich 1 (CH1) domain of p300 bound to the C-terminal transactivation domain of ...

    journal_title:Proceedings of the National Academy of Sciences of the United States of America

    pub_type: 杂志文章

    doi:10.1073/pnas.082117899

    authors: Freedman SJ,Sun ZY,Poy F,Kung AL,Livingston DM,Wagner G,Eck MJ

    更新日期:2002-04-16 00:00:00

  • Molecular cloning of DNA from F sex factor of Escherichia coli K-12.

    abstract::We describe the molecular cloning of various DNA segments generated by partial EcoRI endonuclease digestion of the sex factor F. These segments have been analyzed by agarose gel electrophoresis of EcoRI digests and were arranged in a series of overlapping fragments using the EcoRI fragment map of F established by H. O...

    journal_title:Proceedings of the National Academy of Sciences of the United States of America

    pub_type: 杂志文章

    doi:10.1073/pnas.73.1.64

    authors: Skurray RA,Nagaishi H,Clark AJ

    更新日期:1976-01-01 00:00:00

  • The heteromeric Nanoarchaeum equitans splicing endonuclease cleaves noncanonical bulge-helix-bulge motifs of joined tRNA halves.

    abstract::Among the tRNA population of the archaeal parasite Nanoarchaeum equitans are five species assembled from separate 5' and 3' tRNA halves and four species derived from tRNA precursors containing introns. In both groups an intervening sequence element must be removed during tRNA maturation. A bulge-helix-bulge (BHB) moti...

    journal_title:Proceedings of the National Academy of Sciences of the United States of America

    pub_type: 杂志文章

    doi:10.1073/pnas.0509197102

    authors: Randau L,Calvin K,Hall M,Yuan J,Podar M,Li H,Söll D

    更新日期:2005-12-13 00:00:00

  • Cross-subunit interactions that stabilize open states mediate gating in NMDA receptors.

    abstract::NMDA receptors are excitatory channels with critical functions in the physiology of central synapses. Their activation reaction proceeds as a series of kinetically distinguishable, reversible steps, whose structural bases are currently under investigation. Very likely, the earliest steps include glutamate binding to g...

    journal_title:Proceedings of the National Academy of Sciences of the United States of America

    pub_type: 杂志文章

    doi:10.1073/pnas.2007511118

    authors: Iacobucci GJ,Wen H,Helou M,Liu B,Zheng W,Popescu GK

    更新日期:2021-01-12 00:00:00

  • Tug-of-war between dissimilar teams of microtubule motors regulates transport and fission of endosomes.

    abstract::Intracellular transport is interspersed with frequent reversals in direction due to the presence of opposing kinesin and dynein motors on organelles that are carried as cargo. The cause and the mechanism of reversals are unknown, but are a key to understanding how cargos are delivered in a regulated manner to specific...

    journal_title:Proceedings of the National Academy of Sciences of the United States of America

    pub_type: 杂志文章

    doi:10.1073/pnas.0906524106

    authors: Soppina V,Rai AK,Ramaiya AJ,Barak P,Mallik R

    更新日期:2009-11-17 00:00:00