Use of ordinal information by fish.


:Mammals and birds can process ordinal numerical information which can be used, for instance, for recognising an object on the basis of its position in a sequence of similar objects. Recent studies have shown that teleost fish possess numerical abilities comparable to those of other vertebrates, but it is unknown if they can also learn ordinal numerical relations. Guppies (Poecilia reticulata) learned to recognise the 3(rd) feeder in a row of 8 identical ones even when inter-feeder distance and feeder positions were varied among trials to prevent the use of any spatial information. To assess whether guppies spontaneously use ordinal or spatial information when both are simultaneously available, fish were then trained with constant feeder positions and inter-feeder distance. In probe trials where these two sources of information were contrasted, the subjects selected the correct ordinal position significantly more often than the original spatial position, indicating that the former was preferentially encoded during training. Finally, a comparison between subjects trained on the 3(rd) and the 5(th) position revealed that guppies can also learn the latter discrimination, but the larger error rate observed in this case suggests that 5 is close to the upper limit of discrimination in guppies.


Sci Rep


Scientific reports


Petrazzini ME,Lucon-Xiccato T,Agrillo C,Bisazza A




Has Abstract


2015-10-26 00:00:00










  • Matrix metalloproteinases (MMPs) mediate leukocyte recruitment during the inflammatory phase of zebrafish heart regeneration.

    abstract::In zebrafish, the role of matrix metalloproteinases (MMPs) in the inflammatory phase of heart regeneration following cryoinjury remains poorly understood. Here, we demonstrated an increase in MMP enzymatic activity and elevated expression of mmp9 and mmp13 in the injured area (IA) of hearts from as early as 1 day post...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Xu S,Webb SE,Lau TCK,Cheng SH

    更新日期:2018-05-08 00:00:00

  • Morphological Characteristics of Posterior Wall Fragments Associated with Acetabular Both-column Fracture.

    abstract::Treatment of both-column fractures with posterior wall involvement is still a controversial topic. This type of posterior wall fracture is different from isolated acetabular posterior wall fracture (AO/OTA62-A1). The aim of this study is to compare the morphology of the posterior wall fragments of these two fracture p...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Tian S,Chen Y,Yin Y,Zhang R,Hou Z,Zhang Y

    更新日期:2019-12-27 00:00:00

  • Synergistic effect of land-use and vegetation greenness on vulture nestling body condition in arid ecosystems.

    abstract::Climate-driven environmental change and land-use change often interact in their impact on biodiversity, but these interactions have received little scientific attention. Here we study the effects of climate-driven environmental variation (i.e. vegetation greenness) and land-use (protected versus unprotected areas) on ...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Santangeli A,Spiegel O,Bridgeford P,Girardello M

    更新日期:2018-08-29 00:00:00

  • Genetic diversity and population structure of the Bacillus cereus group bacteria from diverse marine environments.

    abstract::The phylogenetic diversity of marine bacteria belonged to the Bacillus cereus group has not been well investigated. Here, we present the genetic diversity and population structure of 71 bacteria from diverse marine environments, using a multilocus sequence typing (MLST) approach and the analyses of digital DNA-DNA hyb...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Liu Y,Lai Q,Du J,Shao Z

    更新日期:2017-04-06 00:00:00

  • Application of an in vitro-amplification assay as a novel pre-screening test for compounds inhibiting the aggregation of prion protein scrapie.

    abstract::In vitro amplification assays, such as real-time quaking-induced conversion (RT-QuIC) are used to detect aggregation activity of misfolded prion protein (PrP) in brain, cerebrospinal fluid (CSF) and urine samples from patients with a prion disease. We believe that the method also has a much broader application spectru...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Schmitz M,Cramm M,Llorens F,Candelise N,Müller-Cramm D,Varges D,Schulz-Schaeffer WJ,Zafar S,Zerr I

    更新日期:2016-07-07 00:00:00

  • Heterostructured electrode with concentration gradient shell for highly efficient oxygen reduction at low temperature.

    abstract::Heterostructures of oxides have been widely investigated in optical, catalytic and electrochemical applications, because the heterostructured interfaces exhibit pronouncedly different transport, charge, and reactivity characteristics compared to the bulk of the oxides. Here we fabricated a three-dimensional (3D) heter...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Zhou W,Liang F,Shao Z,Chen J,Zhu Z

    更新日期:2011-01-01 00:00:00

  • Adipose cell size changes are associated with a drastic actin remodeling.

    abstract::Adipose tissue plays a major role in regulating whole-body insulin sensitivity and energy metabolism. To accommodate surplus energy, the tissue rapidly expands by increasing adipose cell size (hypertrophy) and cell number (hyperplasia). Previous studies have shown that enlarged, hypertrophic adipocytes are less respon...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Hansson B,Morén B,Fryklund C,Vliex L,Wasserstrom S,Albinsson S,Berger K,Stenkula KG

    更新日期:2019-09-10 00:00:00

  • Dyke apertures record stress accumulation during sustained volcanism.

    abstract::The feedback between dyke and sill intrusions and the evolution of stresses within volcanic systems is poorly understood, despite its importance for magma transport and volcano instability. Long-lived ocean island volcanoes are crosscut by thousands of dykes, which must be accommodated through a combination of flank s...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Thiele ST,Cruden AR,Micklethwaite S,Bunger AP,Köpping J

    更新日期:2020-10-15 00:00:00

  • Spatial accessibility of general inpatient care in Germany: an analysis of surgery, internal medicine and neurology.

    abstract::Improving spatial accessibility to hospitals is a major task for health care systems which can be facilitated using recent methodological improvements of spatial accessibility measures. We used the integrated floating catchment area (iFCA) method to analyze spatial accessibility of general inpatient care (internal med...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Bauer J,Klingelhöfer D,Maier W,Schwettmann L,Groneberg DA

    更新日期:2020-11-05 00:00:00

  • Quality of non-expert citizen science data collected for habitat type conservation status assessment in Natura 2000 protected areas.

    abstract::EU biodiversity conservation policy is based on the Habitats Directive (92/43/EC), which aims that habitat types and species of Community interest should reach 'favourable conservation status'. To this end, Member States are obliged to perform periodic assessment of species and habitat conservation status through biod...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Kallimanis AS,Panitsa M,Dimopoulos P

    更新日期:2017-08-21 00:00:00

  • Combining TGF-β signal inhibition and connexin43 silencing for iPSC induction from mouse cardiomyocytes.

    abstract::The reprogramming of differentiated cells into induced pluripotent stem cells (iPSCs) can be achieved by ectopic expression of defined transcription factors (Oct3/4, Sox2, Klf4 and c-Myc). However, to date, some iPSCs have been generated using viral vectors; thus, unexpected insertional mutagenesis in the target cells...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Dai P,Harada Y,Miyachi H,Tanaka H,Kitano S,Adachi T,Suzuki T,Hino H,Takamatsu T

    更新日期:2014-12-04 00:00:00

  • Glucokinase intrinsically regulates glucose sensing and glucagon secretion in pancreatic alpha cells.

    abstract::The secretion of glucagon by pancreatic alpha cells is regulated by a number of external and intrinsic factors. While the electrophysiological processes linking a lowering of glucose concentrations to an increased glucagon release are well characterized, the evidence for the identity and function of the glucose sensor...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Moede T,Leibiger B,Vaca Sanchez P,Daré E,Köhler M,Muhandiramlage TP,Leibiger IB,Berggren PO

    更新日期:2020-11-19 00:00:00

  • Digital-Analog Quantum Simulation of Spin Models in Trapped Ions.

    abstract::We propose a method to simulate spin models in trapped ions using a digital-analog approach, consisting in a suitable gate decomposition in terms of analog blocks and digital steps. In this way, we show that the quantum dynamics of an enhanced variety of spin models could be implemented with substantially less number ...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Arrazola I,Pedernales JS,Lamata L,Solano E

    更新日期:2016-07-29 00:00:00

  • Detection of replicative Kashmir Bee Virus and Black Queen Cell Virus in Asian hornet Vespa velutina (Lepelieter 1836) in Italy.

    abstract::Information concerning the pathogenic role of honey bee viruses in invasive species are still scarce. The aim of this investigation was to assess the presence of several honey bee viruses, such as Black Queen Cell Virus (BQCV), Kashmir Bee Virus (KBV), Slow Paralysis Virus (SPV), Sac Brood Virus (SBV), Israeli Acute P...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Mazzei M,Cilia G,Forzan M,Lavazza A,Mutinelli F,Felicioli A

    更新日期:2019-07-12 00:00:00

  • Recent pace of change in human impact on the world's ocean.

    abstract::Humans interact with the oceans in diverse and profound ways. The scope, magnitude, footprint and ultimate cumulative impacts of human activities can threaten ocean ecosystems and have changed over time, resulting in new challenges and threats to marine ecosystems. A fundamental gap in understanding how humanity is af...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Halpern BS,Frazier M,Afflerbach J,Lowndes JS,Micheli F,O'Hara C,Scarborough C,Selkoe KA

    更新日期:2019-08-12 00:00:00

  • Lnc2Catlas: an atlas of long noncoding RNAs associated with risk of cancers.

    abstract::Lnc2Catlas ( ) is an atlas of long noncoding RNAs (lncRNAs) associated with cancer risk. LncRNAs are a class of functional noncoding RNAs with lengths over 200 nt and play a vital role in diverse biological processes. Increasing evidence shows that lncRNA dysfunction is associated wi...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Ren C,An G,Zhao C,Ouyang Z,Bo X,Shu W

    更新日期:2018-01-30 00:00:00

  • Interplay between TETs and microRNAs in the adult brain for memory formation.

    abstract::5-hydroxymethylation (5-hmC) is an epigenetic modification on DNA that results from the conversion of 5-methylcytosine by Ten-Eleven Translocation (TET) proteins. 5-hmC is widely present in the brain and is subjected to dynamic regulation during development and upon neuronal activity. It was recently shown to be invol...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Kremer EA,Gaur N,Lee MA,Engmann O,Bohacek J,Mansuy IM

    更新日期:2018-01-26 00:00:00

  • Genetic and Phytochemical Characterization of Lettuce Flavonoid Biosynthesis Mutants.

    abstract::We previously developed red lettuce (Lactuca sativa L.) cultivars with high flavonoid and phenolic acid content and demonstrated their anti-diabetic effect. Here we report on developing three fertile and true-breeding lettuce lines enriched with flavonoids with reported beneficial health effects. These lines were iden...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Gurdon C,Poulev A,Armas I,Satorov S,Tsai M,Raskin I

    更新日期:2019-03-01 00:00:00

  • Changes in motor behavior, neuropathology, and gut microbiota of a Batten disease mouse model following administration of acidified drinking water.

    abstract::CLN3 mutations cause the fatal neurodegenerative disorder, CLN3 Batten disease. The Cln3-/- mouse model displays characteristic features of the human disease including motor deficits. When mice received acidified drinking water (pH 2.5-2.9) instead of normal tap water (pH 8.4) for several generations, the motor skills...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Johnson TB,Langin LM,Zhao J,Weimer JM,Pearce DA,Kovács AD

    更新日期:2019-10-18 00:00:00

  • microRNA-29b mediates fibrotic induction of human xylosyltransferase-I in human dermal fibroblasts via the Sp1 pathway.

    abstract::Diminished microRNA-29b levels have recently been revealed to provoke increased expression and accumulation of extracellular matrix molecules, such as collagens in fibrotic remodeling. Subsequently, the aim of this study was to find out whether microRNA-29b might also regulate human xylosyltransferase (XT)-I expressio...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Riedel L,Fischer B,Ly TD,Hendig D,Kuhn J,Knabbe C,Faust I

    更新日期:2018-12-12 00:00:00

  • High Pressure Quenched Glasses: unique structures and properties.

    abstract::Zr-based metallic glasses are prepared by quenching supercooled liquid under pressure. These glasses are stable in ambient conditions after decompression. The High Pressure Quenched glasses have a distinct structure and properties. The pair distribution function shows redistribution of the Zr-Zr interatomic distances ...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Dmowski W,Yoo GH,Gierlotka S,Wang H,Yokoyama Y,Park ES,Stelmakh S,Egami T

    更新日期:2020-06-11 00:00:00

  • Detection of influenza A virus from live-bird market poultry swab samples in China by a pan-IAV, one-step reverse-transcription FRET-PCR.

    abstract::The persistent public health threat of animal to human transmission of influenza A virus (IAV) has stimulated interest in rapid and accurate detection of all IAV subtypes in clinical specimens of animal origin. In this study, a new set of primers and probes was designed for one-step pan-IAV reverse-transcription fluor...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Luan L,Sun Z,Kaltenboeck B,Huang K,Li M,Peng D,Xu X,Ye J,Li J,Guo W,Wang C

    更新日期:2016-07-22 00:00:00

  • A previously unrecognized role of C3a in proteinuric progressive nephropathy.

    abstract::Podocyte loss is the initial event in the development of glomerulosclerosis, the structural hallmark of progressive proteinuric nephropathies. Understanding mechanisms underlying glomerular injury is the key challenge for identifying novel therapeutic targets. In mice with protein-overload induced by bovine serum albu...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Morigi M,Locatelli M,Rota C,Buelli S,Corna D,Rizzo P,Abbate M,Conti D,Perico L,Longaretti L,Benigni A,Zoja C,Remuzzi G

    更新日期:2016-06-27 00:00:00

  • Integration of neurogenesis and angiogenesis models for constructing a neurovascular tissue.

    abstract::Neurovascular unit (NVU) is a basic unit in the brain, including neurons, glial cells, blood vessels and extracellular matrix. This concept implies the importance of a three-dimensional (3D) culture model including these cell types for investigating brain functions. However, little is known about the construction of a...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Uwamori H,Higuchi T,Arai K,Sudo R

    更新日期:2017-12-11 00:00:00

  • Structural basis for high specificity of octopine binding in the plant pathogen Agrobacterium tumefaciens.

    abstract::Agrobacterium pathogens of octopine- and nopaline-types force host plants to produce either octopine or nopaline compounds, which they use as nutrients. Two Agrobacterium ABC-transporters and their cognate periplasmic binding proteins (PBPs) OccJ and NocT import octopine and nopaline/octopine, respectively. Here, we s...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Vigouroux A,El Sahili A,Lang J,Aumont-Nicaise M,Dessaux Y,Faure D,Moréra S

    更新日期:2017-12-21 00:00:00

  • Heritability and genome-wide association study of benign prostatic hyperplasia (BPH) in the eMERGE network.

    abstract::Benign prostatic hyperplasia (BPH) results in a significant public health burden due to the morbidity caused by the disease and many of the available remedies. As much as 70% of men over 70 will develop BPH. Few studies have been conducted to discover the genetic determinants of BPH risk. Understanding the biological ...

    journal_title:Scientific reports

    pub_type: 杂志文章,多中心研究


    authors: Hellwege JN,Stallings S,Torstenson ES,Carroll R,Borthwick KM,Brilliant MH,Crosslin D,Gordon A,Hripcsak G,Jarvik GP,Linneman JG,Devi P,Peissig PL,Sleiman PAM,Hakonarson H,Ritchie MD,Verma SS,Shang N,Denny JC,Roden DM

    更新日期:2019-04-15 00:00:00

  • Author Correction: Designing a whole cell bioreporter to show antioxidant activities of agents that work by promotion of the KEAP1-NRF2 signaling pathway.

    abstract::An amendment to this paper has been published and can be accessed via a link at the top of the paper. ...

    journal_title:Scientific reports

    pub_type: 已发布勘误


    authors: Mozaheb N,Arefian E,Amoozegar MA

    更新日期:2020-10-28 00:00:00

  • Mechanism of azithromycin inhibition of HSL synthesis in Pseudomonas aeruginosa.

    abstract::Pseudomonas aeruginosa is an opportunistic pathogen and a leading cause of nosocomial infections. Unfortunately, P. aeruginosa has low antibiotic susceptibility due to several chromosomally encoded antibiotic resistance genes. Hence, we carried out mechanistic studies to determine how azithromycin affects quorum sensi...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Zeng J,Zhang N,Huang B,Cai R,Wu B,E S,Fang C,Chen C

    更新日期:2016-04-14 00:00:00

  • DOSCATs: Double standards for protein quantification.

    abstract::The two most common techniques for absolute protein quantification are based on either mass spectrometry (MS) or on immunochemical techniques, such as western blotting (WB). Western blotting is most often used for protein identification or relative quantification, but can also be deployed for absolute quantification i...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Bennett RJ,Simpson DM,Holman SW,Ryan S,Brownridge P,Eyers CE,Colyer J,Beynon RJ

    更新日期:2017-04-03 00:00:00

  • Chitosan grafted methoxy poly(ethylene glycol)-poly(ε-caprolactone) nanosuspension for ocular delivery of hydrophobic diclofenac.

    abstract::This study aimed to develop a cationic nanosuspension of chitosan (CS) and methoxy poly(ethylene glycol)-poly(ε-caprolactone) (MPEG-PCL) for ocular delivery of diclofenac (DIC). MPEG-PCL-CS block polymer was synthesized by covalent coupling of MPEG-PCL with CS. The critical micelle concentration of the MPEG-PCL-CS blo...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Shi S,Zhang Z,Luo Z,Yu J,Liang R,Li X,Chen H

    更新日期:2015-06-12 00:00:00