Shape perception enhances perceived contrast: evidence for excitatory predictive feedback?

Abstract:

:Predictive coding theory suggests that predictable responses are "explained away" (i.e., reduced) by feedback. Experimental evidence for feedback inhibition, however, is inconsistent: most neuroimaging studies show reduced activity by predictive feedback, while neurophysiology indicates that most inter-areal cortical feedback is excitatory and targets excitatory neurons. In this study, we asked subjects to judge the luminance of two gray disks containing stimulus outlines: one enabling predictive feedback (a 3D-shape) and one impeding it (random-lines). These outlines were comparable to those used in past neuroimaging studies. All 14 subjects consistently perceived the disk with a 3D-shape stimulus brighter; thus, predictive feedback enhanced perceived contrast. Since early visual cortex activity at the population level has been shown to have a monotonic relationship with subjective contrast perception, we speculate that the perceived contrast enhancement could reflect an increase in neuronal activity. In other words, predictive feedback may have had an excitatory influence on neuronal responses. Control experiments ruled out attention bias, local feature differences and response bias as alternate explanations.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Han B,VanRullen R

doi

10.1038/srep22944

subject

Has Abstract

pub_date

2016-03-14 00:00:00

pages

22944

issn

2045-2322

pii

srep22944

journal_volume

6

pub_type

杂志文章
  • Extraction of nano-silicon with activated carbons simultaneously from rice husk and their synergistic catalytic effect in counter electrodes of dye-sensitized solar cells.

    abstract::The extraction of renewable energy resources particularly from earth abundant materials has always been a matter of significance in industrial products. Herein, we report a novel simultaneous extraction of nano-silicon with activated carbons (nano-Si@ACs) from rice husk (RH) by chemical activation method. As-extracted...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep39314

    authors: Ahmad W,Bahrani MR,Yang Z,Khan J,Jing W,Jiang F,Chu L,Liu N,Li L,Gao Y

    更新日期:2016-12-21 00:00:00

  • Changes in the adhesive properties of spider aggregate glue during the evolution of cobwebs.

    abstract::We compare the prey capture glues produced by orb-weaving spiders (viscid glue) and their evolutionary descendents, the cobweb-weaving spiders (gumfoot glue). These glues are produced in homologous glands but exhibit contrasting structure, properties and response to changing humidity. Individual glue droplet stretchin...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep00041

    authors: Sahni V,Blackledge TA,Dhinojwala A

    更新日期:2011-01-01 00:00:00

  • Insights about multi-targeting and synergistic neuromodulators in Ayurvedic herbs against epilepsy: integrated computational studies on drug-target and protein-protein interaction networks.

    abstract::Epilepsy, that comprises a wide spectrum of neuronal disorders and accounts for about one percent of global disease burden affecting people of all age groups, is recognised as apasmara in the traditional medicinal system of Indian antiquity commonly known as Ayurveda. Towards exploring the molecular level complex regu...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-019-46715-6

    authors: Choudhary N,Singh V

    更新日期:2019-07-22 00:00:00

  • Anti-apoptotic activity of ETB receptor agonist, IRL-1620, protects neural cells in rats with cerebral ischemia.

    abstract::Endothelin-B receptor agonist, IRL-1620, provides significant neuroprotection following cerebral ischemia in rats. Whether this neuroprotection is due to inhibition of apoptosis is unknown. IRL-1620-treated rats following permanent middle cerebral artery occlusion (MCAO) showed significant improvement in neurological ...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-019-46203-x

    authors: Briyal S,Ranjan AK,Hornick MG,Puppala AK,Luu T,Gulati A

    更新日期:2019-07-18 00:00:00

  • Activation volume of selected liquid crystals in the density scaling regime.

    abstract::In this paper, we demonstrate and thoroughly analyze the activation volumetric properties of selected liquid crystals in the nematic and crystalline E phases in comparison with those reported for glass-forming liquids. In the analysis, we have employed and evaluated two entropic models (based on either total or config...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep42174

    authors: Grzybowski A,Urban S,Mroz S,Paluch M

    更新日期:2017-02-09 00:00:00

  • Honokiol as a specific collagen receptor glycoprotein VI antagonist on human platelets: Functional ex vivo and in vivo studies.

    abstract::Honokiol, derived from Magnolia officinalis, has various pharmacological properties. Platelet activation plays a critical role in cardiovascular diseases. Honokiol has been reported to inhibit collagen-stimulated rabbit platelet aggregation. However, detailed further studies on the characteristics and functional activ...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep40002

    authors: Lee TY,Chang CC,Lu WJ,Yen TL,Lin KH,Geraldine P,Li JY,Sheu JR

    更新日期:2017-01-05 00:00:00

  • A homology-based pipeline for global prediction of post-translational modification sites.

    abstract::The pathways of protein post-translational modifications (PTMs) have been shown to play particularly important roles for almost any biological process. Identification of PTM substrates along with information on the exact sites is fundamental for fully understanding or controlling biological processes. Alternative comp...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep25801

    authors: Chen X,Shi SP,Xu HD,Suo SB,Qiu JD

    更新日期:2016-05-13 00:00:00

  • Gibberellins negatively regulate the development of Medicago truncatula root system.

    abstract::The root system displays a remarkable plasticity that enables plants to adapt to changing environmental conditions. This plasticity is tightly linked to the activity of root apical meristems (RAMs) and to the formation of lateral roots, both controlled by related hormonal crosstalks. In Arabidopsis thaliana, gibberell...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-019-38876-1

    authors: Fonouni-Farde C,Miassod A,Laffont C,Morin H,Bendahmane A,Diet A,Frugier F

    更新日期:2019-02-20 00:00:00

  • Ultrasound modulates ion channel currents.

    abstract::Transcranial focused ultrasound (US) has been demonstrated to stimulate neurons in animals and humans, but the mechanism of this effect is unknown. It has been hypothesized that US, a mechanical stimulus, may mediate cellular discharge by activating mechanosensitive ion channels embedded within cellular membranes. To ...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep24170

    authors: Kubanek J,Shi J,Marsh J,Chen D,Deng C,Cui J

    更新日期:2016-04-26 00:00:00

  • Electronic Health Record Driven Prediction for Gestational Diabetes Mellitus in Early Pregnancy.

    abstract::Gestational diabetes mellitus (GDM) is conventionally confirmed with oral glucose tolerance test (OGTT) in 24 to 28 weeks of gestation, but it is still uncertain whether it can be predicted with secondary use of electronic health records (EHRs) in early pregnancy. To this purpose, the cost-sensitive hybrid model (CSHM...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-017-16665-y

    authors: Qiu H,Yu HY,Wang LY,Yao Q,Wu SN,Yin C,Fu B,Zhu XJ,Zhang YL,Xing Y,Deng J,Yang H,Lei SD

    更新日期:2017-11-27 00:00:00

  • A simple method for the production of large volume 3D macroporous hydrogels for advanced biotechnological, medical and environmental applications.

    abstract::The development of bulk, three-dimensional (3D), macroporous polymers with high permeability, large surface area and large volume is highly desirable for a range of applications in the biomedical, biotechnological and environmental areas. The experimental techniques currently used are limited to the production of smal...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep21154

    authors: Savina IN,Ingavle GC,Cundy AB,Mikhalovsky SV

    更新日期:2016-02-17 00:00:00

  • Mice lacking Casp1, Ifngr and Nos2 genes exhibit altered depressive- and anxiety-like behaviour, and gut microbiome composition.

    abstract::Converging evidence supports the involvement of pro-inflammatory pathways and the gut microbiome in major depressive disorder (MDD). Pre-clinical and clinical studies suggest that decreasing pro-inflammatory signaling may provide clinical benefit in MDD. In this study, we used the chronic unpredictable stress (CUS) pa...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-018-38055-8

    authors: Inserra A,Choo JM,Lewis MD,Rogers GB,Wong ML,Licinio J

    更新日期:2019-04-23 00:00:00

  • Impact of microscopic In fluctuations on the optical properties of InxGa1-xN blue light-emitting diodes assessed by low-energy X-ray fluorescence mapping using synchrotron radiation.

    abstract::Among the III-nitride semiconductors, InxGa1-xN is a key material for visible optical devices such as light-emitting diodes (LEDs), laser diodes, and solar cells. Light emission is achieved via electron-hole recombination within the InxGa1-xN layer. When InxGa1-xN-based blue LEDs were first commercialized, the high pr...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-019-39086-5

    authors: Sakaki A,Funato M,Miyano M,Okazaki T,Kawakami Y

    更新日期:2019-03-06 00:00:00

  • Fine tuning of Rac1 and RhoA alters cuspal shapes by remolding the cellular geometry.

    abstract::The anatomic and functional combinations of cusps and lophs (ridges) define the tooth shape of rodent molars, which distinguishes species. The species-specific cusp patterns result from the spatiotemporal induction of enamel knots (EKs), which require precisely controlled cellular behavior to control the epithelial in...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep37828

    authors: Li L,Tang Q,Nakamura T,Suh JG,Ohshima H,Jung HS

    更新日期:2016-11-28 00:00:00

  • Transfusion Challenges in Patients with Hematological Malignancies in Sub-Saharan Africa: A Prospective Observational Study from the Uganda Cancer Institute.

    abstract::Blood transfusion is fundamental in managing hematologic malignancies. We sought to evaluate the need and availability of blood products for patients with hematological malignancies at Uganda Cancer Institute. We prospectively studied the demand and supply of blood for patients with thrombocytopenia (platelet count ≤5...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-020-59773-y

    authors: Ddungu H,Krantz EM,Kajja I,Naluzze S,Nabbanja H,Nalubwama F,Phipps W,Orem J,Wald A,Kiwanuka N

    更新日期:2020-02-18 00:00:00

  • Micro-epidemiology and spatial heterogeneity of P. vivax parasitaemia in riverine communities of the Peruvian Amazon: A multilevel analysis.

    abstract::Malaria has steadily increased in the Peruvian Amazon over the last five years. This study aimed to determine the parasite prevalence and micro-geographical heterogeneity of Plasmodium vivax parasitaemia in communities of the Peruvian Amazon. Four cross-sectional active case detection surveys were conducted between Ma...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-017-07818-0

    authors: Carrasco-Escobar G,Gamboa D,Castro MC,Bangdiwala SI,Rodriguez H,Contreras-Mancilla J,Alava F,Speybroeck N,Lescano AG,Vinetz JM,Rosas-Aguirre A,Llanos-Cuentas A

    更新日期:2017-08-14 00:00:00

  • Discovery of human-like L-asparaginases with potential clinical use by directed evolution.

    abstract::L-asparaginase is a chemotherapy drug used to treat acute lymphoblastic leukemia (ALL). The main prerequisite for clinical efficacy of L-asparaginases is micromolar KM for asparagine to allow for complete depletion of this amino acid in the blood. Since currently approved L-asparaginases are of bacterial origin, immun...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-017-10758-4

    authors: Rigouin C,Nguyen HA,Schalk AM,Lavie A

    更新日期:2017-08-31 00:00:00

  • Dual-pump Kerr Micro-cavity Optical Frequency Comb with varying FSR spacing.

    abstract::In this paper, we demonstrate a novel dual-pump approach to generate robust optical frequency comb with varying free spectral range (FSR) spacing in a CMOS-compatible high-Q micro-ring resonator (MRR). The frequency spacing of the comb can be tuned by an integer number FSR of the MRR freely in our dual-pump scheme. Th...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep28501

    authors: Wang W,Chu ST,Little BE,Pasquazi A,Wang Y,Wang L,Zhang W,Wang L,Hu X,Wang G,Hu H,Su Y,Li F,Liu Y,Zhao W

    更新日期:2016-06-24 00:00:00

  • Dual regulation of water retention and cell growth by a stress-associated protein (SAP) gene in Prunus.

    abstract::We have identified a gene (PpSAP1) of Prunus persica coding for a stress-associated protein (SAP) containing Zn-finger domains A20 and AN1. SAPs have been described as regulators of the abiotic stress response in plant species, emerging as potential candidates for improvement of stress tolerance in plants. PpSAP1 was ...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-017-00471-7

    authors: Lloret A,Conejero A,Leida C,Petri C,Gil-Muñoz F,Burgos L,Badenes ML,Ríos G

    更新日期:2017-03-23 00:00:00

  • Enzyme-based listericidal nanocomposites.

    abstract::Cell lytic enzymes represent an alternative to chemical decontamination or use of antibiotics to kill pathogenic bacteria, such as listeria. A number of phage cell lytic enzymes against listeria have been isolated and possess listericidal activity; however, there has been no attempt to incorporate these enzymes onto s...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep01584

    authors: Solanki K,Grover N,Downs P,Paskaleva EE,Mehta KK,Lee L,Schadler LS,Kane RS,Dordick JS

    更新日期:2013-01-01 00:00:00

  • Cross comparison and prognostic assessment of breast cancer multigene signatures in a large population-based contemporary clinical series.

    abstract::Multigene expression signatures provide a molecular subdivision of early breast cancer associated with patient outcome. A gap remains in the validation of such signatures in clinical treatment groups of patients within population-based cohorts of unselected primary breast cancer representing contemporary disease stage...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-019-48570-x

    authors: Vallon-Christersson J,Häkkinen J,Hegardt C,Saal LH,Larsson C,Ehinger A,Lindman H,Olofsson H,Sjöblom T,Wärnberg F,Ryden L,Loman N,Malmberg M,Borg Å,Staaf J

    更新日期:2019-08-21 00:00:00

  • Author Correction: Pattern invariance for reaction-diffusion systems on complex networks.

    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

    doi:10.1038/s41598-020-60111-5

    authors: Cencetti G,Clusella P,Fanelli D

    更新日期:2020-02-18 00:00:00

  • A Single Dose of Modified Vaccinia Ankara expressing Ebola Virus Like Particles Protects Nonhuman Primates from Lethal Ebola Virus Challenge.

    abstract::Ebola virus (EBOV), isolate Makona, was the causative agent of the West African epidemic devastating predominantly Guinea, Liberia and Sierra Leone from 2013-2016. While several experimental vaccine and treatment approaches have been accelerated through human clinical trials, there is still no approved countermeasure ...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-017-19041-y

    authors: Domi A,Feldmann F,Basu R,McCurley N,Shifflett K,Emanuel J,Hellerstein MS,Guirakhoo F,Orlandi C,Flinko R,Lewis GK,Hanley PW,Feldmann H,Robinson HL,Marzi A

    更新日期:2018-01-16 00:00:00

  • Size-tunable Synthesis of Silver Nanobelts Using a Polyaniline Derived Polymer as a Template.

    abstract::Silver nanobelts (AgNBs) have attracted a great interest due to their excellent electrical conductivity and mechanical strength, leading a facile synthesis of these AgNBs in great demand. In here, we are reporting a simple, aqueous phase, size tunable synthesis of smooth surfaced 1D-silver nanobelts using a Polyanilin...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep44796

    authors: Padmanaban S,Kim M,Yoon S

    更新日期:2017-03-20 00:00:00

  • Serum albumin cysteine trioxidation is a potential oxidative stress biomarker of type 2 diabetes mellitus.

    abstract::Metabolic disorders in T2DM generate multiple sources of free radicals and oxidative stress that accelerate nonenzymatic degenerative protein modifications (DPMs) such as protein oxidation, disrupt redox signaling and physiological function, and remain a major risk factor for clinical diabetic vascular complications. ...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-020-62341-z

    authors: Paramasivan S,Adav SS,Ngan SC,Dalan R,Leow MK,Ho HH,Sze SK

    更新日期:2020-04-15 00:00:00

  • Provitamin D3 modulation through prebiotics supplementation: simulation based assessment.

    abstract::Vitamin D is important in multiple health conditions. Vitamin D deficiency is prevalent globally even with exposure to adequate sunlight. Reduction in provitamin D3 (7-dehydrocholesterol, 7-DHC) is an important cause of vitamin D3 deficiency. Vitamin supplementation, food fortification, and use of probiotics are some ...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-019-55699-2

    authors: Gokhale S,Bhaduri A

    更新日期:2019-12-17 00:00:00

  • Deceleration and acceleration capacities of heart rate associated with heart failure with high discriminating performance.

    abstract::Accurate measurements of autonomic nerve regulation in heart failure (HF) were unresolved. The discriminating performance of deceleration and acceleration capacities of heart rate in HF was evaluated in 130 HF patients and 212 controls. Acceleration capacity and deceleration capacity were independent risk factors for ...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep23617

    authors: Hu W,Jin X,Zhang P,Yu Q,Yin G,Lu Y,Xiao H,Chen Y,Zhang D

    更新日期:2016-03-23 00:00:00

  • Average is boring: how similarity kills a meme's success.

    abstract::Every day we are exposed to different ideas, or memes, competing with each other for our attention. Previous research explained popularity and persistence heterogeneity of memes by assuming them in competition for limited attention resources, distributed in a heterogeneous social network. Little has been said about wh...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep06477

    authors: Coscia M

    更新日期:2014-09-26 00:00:00

  • Prevalence, functional characteristics, and clinical significance of right ventricular involvement in patients with hypertrophic cardiomyopathy.

    abstract::We sought to investigate the prevalence, functional characteristics, and clinical significance of right ventricular (RV) involvement in patients with hypertrophic cardiomyopathy (HCM). A total of 256 patients with HCM who underwent both cardiac magnetic resonance (CMR) imaging and transthoracic echocardiography within...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-020-78945-4

    authors: Seo J,Hong YJ,Kim YJ,Lkhagvasuren P,Cho I,Shim CY,Ha JW,Hong GR

    更新日期:2020-12-14 00:00:00

  • Hepatitis C Virus Infection of Cultured Human Hepatoma Cells Causes Apoptosis and Pyroptosis in Both Infected and Bystander Cells.

    abstract::Individuals infected with hepatitis C virus (HCV) are at high risk of developing progressive liver disease, including cirrhosis and hepatocellular carcinoma (HCC). How HCV infection causes liver destruction has been of significant interest for many years, and apoptosis has been proposed as one operative mechanism. In ...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep37433

    authors: Kofahi HM,Taylor NG,Hirasawa K,Grant MD,Russell RS

    更新日期:2016-12-15 00:00:00