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Items from 1 to 20 out of 316 results

article

Neuronal activity patterns in microcircuits of the cerebellar cortical C3 zone during reaching

Nadia L. Cerminara, Martin Garwicz, Henry Darch, Conor Houghton, more

The Journal of Physiology > 600 > 23 > 5077 - 5099

Abstract The cerebellum is the largest sensorimotor structure in the brain. A fundamental organizational feature of its cortex is its division into a series of rostrocaudally elongated zones. These are defined by their inputs from specific parts of the inferior olive and Purkinje cell output to specific cerebellar and vestibular nuclei. However, little is known about how patterns of neuronal activity...

article

Tooth instance segmentation based on capturing dependencies and receptive field adjustment in cone beam computed tomography

Wenhan Dou, Shanshan Gao, Deqian Mao, Honghao Dai, more

Computer Animation and Virtual Worlds > 33 > 5 > n/a - n/a

Automatic and accurate instance segmentation of teeth can provide important support for computer‐aided orthodontic work. Traditional methods for tooth segmentation studies often ignore the rich structural features of teeth. Capturing the complete and accurate geometry as well as morphological details of a single tooth remains a challenge for current tooth segmentation studies. In this article, a new...

article

Analysis of extracellular spike waveforms and associated receptive fields of neurons in cat primary visual cortex

Shi H. Sun, Ali Almasi, Molis Yunzab, Syeda Zehra, more

The Journal of Physiology > 599 > 8 > 2211 - 2238

Key points Extracellular spikes recorded in the visual cortex (Area 17/18, V1) are commonly classified into either regular‐spiking (RS) or fast‐spiking (FS). Using multi‐electrode arrays positioned in cat V1 and a broadband stimulus, we show that there is also a distinct class with positive‐spiking (PS) waveforms. PS units were associated mainly with non‐oriented receptive fields while RS and FS...

article

TORC1 selectively regulates synaptic maturation and input convergence in the developing visual system

Delphine Gobert, Anne Schohl, Elena Kutsarova, Edward S. Ruthazer

Developmental Neurobiology > 80 > 9-10 > 332 - 350

Newly synthesized proteins support the development of functional neural circuits and previous work has suggested that dysregulated translation mediates certain forms of autism spectrum disorder (ASD). Here, we investigated the role of Target of Rapamycin Complex 1 (TORC1) in synaptic and dendritic development in vivo in the retinotectal system of Xenopus laevis tadpoles. We found that TORC1 signaling...

article

High‐quality retinal vessel segmentation using generative adversarial network with a large receptive field

Hanli Zhao, Xiaqing Qiu, Wanglong Lu, Hui Huang, more

International Journal of Imaging Systems and Technology > 30 > 3 > 828 - 842

Retinal vessel segmentation is of great significance for assisting doctors in diagnosis of ophthalmological diseases such as diabetic retinopathy, macular degeneration and glaucoma. This article proposes a new retinal vessel segmentation algorithm using generative adversarial learning with a large receptive field. A generative network maps an input retinal fundus image to a realistic vessel image...

article

Identifying what makes a neuron fire

Mathew E. Diamond

The Journal of Physiology > 597 > 10 > 2607 - 2608

article

Visual response properties of neurons in the superficial layers of the superior colliculus of awake mouse

Gioia Franceschi, Samuel G. Solomon

The Journal of Physiology > 596 > 24 > 6307 - 6332

Key points In rodents, including mice, the superior colliculus is the major target of the retina, but its visual response is not well characterized. In the present study, extracellular recordings from single nerve cells in the superficial layers of the superior colliculus were made in awake, head‐restrained mice, and their responses to visual stimuli were measured. It was found that these neurons...

article

Neurons in the superior colliculus wake up to see things differently

Jason W. Triplett

The Journal of Physiology > 596 > 24 > 6133 - 6134

article

Spatial receptive field shift by preceding cross‐modal stimulation in the cat superior colliculus

Jinghong Xu, Tingting Bi, Jing Wu, Fanzhu Meng, more

The Journal of Physiology > 596 > 20 > 5033 - 5050

Key points It has been known for some time that sensory information of one type can bias the spatial perception of another modality. However, there is a lack of evidence of this occurring in individual neurons. In the present study, we found that the spatial receptive field of superior colliculus multisensory neurons could be dynamically shifted by a preceding stimulus in a different modality. The...

article

Multi-language online handwriting recognition based on beta-elliptic model and hybrid TDNN-SVM classifier

Ramzi Zouari, Houcine Boubaker, Monji Kherallah

Multimedia Tools and Applications > 2019 > 78 > 9 > 12103- 12123

Recently, several researches were carried on handwritten document analysis field thanks to the evolution of data capture technologies. For a given document, multiple components could be treated as text, signatures and graphics. In this study, we present a new framework for a Multilanguage online handwritten text analysis where both script identification and recognition are made. The proposed system...

article

Code Under Construction: Neural Coding Over Development

Lilach Avitan, Geoffrey J. Goodhill

Trends in Neurosciences > 2018 > 41 > 9 > 599-609

Developing animals must begin to interact with the world before their neural development is complete. This means they must build neural codes appropriate for turning sensory inputs into motor outputs adaptively as their neural hardware matures. We review some recent progress in the understanding of the relationship between neural coding and neural circuit development. We focus particularly on neural...

article

Ret and Substrate-Derived TGF-β Maverick Regulate Space-Filling Dendrite Growth in Drosophila Sensory Neurons

Nina Hoyer, Philip Zielke, Chun Hu, Meike Petersen, more

Cell Reports > 2018 > 24 > 9 > 2261-2272.e5

Dendrite morphogenesis is a highly regulated process that gives rise to stereotyped receptive fields, which are required for proper neuronal connectivity and function. Specific classes of neurons, including Drosophila class IV dendritic arborization (C4da) neurons, also feature complete space-filling growth of dendrites. In this system, we have identified the substrate-derived TGF-β ligand maverick...

article

Visual subcircuit-specific dysfunction and input-specific mispatterning in the superior colliculus of fragile X mice

Rachel B. Kay, Nicole A. Gabreski, Jason W. Triplett

Journal of Neurodevelopmental Disorders > 2018 > 10 > 1 > 1-14

Background Sensory processing deficits are frequently co-morbid with neurodevelopmental disorders. For example, patients with fragile X syndrome (FXS), caused by a silencing of the FMR1 gene, exhibit impairments in visual function specific to the dorsal system, which processes motion information. However, the developmental and circuit mechanisms underlying this deficit remain unclear. Recently, the...

article

Dynamic Texture Recognition Using Time-Causal and Time-Recursive Spatio-Temporal Receptive Fields

Ylva Jansson, Tony Lindeberg

Journal of Mathematical Imaging and Vision > 2018 > 60 > 9 > 1369-1398

This work presents a first evaluation of using spatio-temporal receptive fields from a recently proposed time-causal spatio-temporal scale-space framework as primitives for video analysis. We propose a new family of video descriptors based on regional statistics of spatio-temporal receptive field responses and evaluate this approach on the problem of dynamic texture recognition. Our approach generalises...

article

GE‐RM: Efficient global estimation and refined model for salient object detection via elaborate receptive fields

Ziqin Wang, Peilin Jiang, Fei Wang

IEEJ Transactions on Electrical and Electronic Engineering > 13 > 6 > 868 - 875

Recently, a deep learning technique has been introduced to saliency detection and has achieved promising results, but most of them are based on superpixel algorithms. Consequently, their performances and efficiencies depend largely on the results of a segmentation algorithm. Instead of classifying superpixels, we treat salient object detection as a dense prediction task. Fully convolutional networks...

article

Taking advantage of multi-regions-based diagonal texture structure descriptor for image retrieval

Wei Song, Yubing Zhang, Fei Liu, Zhilei Chai, more

Expert Systems with Applications > 2018 > 96 > C > 347-357

With the rapid development of information technology, the capacity of Web images database becomes larger and larger. How to quickly and effectively find the desired images in Web image databases becomes the challenge needed to resolve with high priority. In this paper a novel diagonal texture structure descriptor (DTSD) is proposed, and a new framework considering hue, saturation and value components...

article

Learning adaptive receptive fields for deep image parsing networks

Zhen Wei, Yao Sun, Junyu Lin, Si Liu

Computational Visual Media > 2018 > 4 > 3 > 231-244

In this paper, we introduce a novel approach to automatically regulate receptive fields in deep image parsing networks. Unlike previous work which placed much importance on obtaining better receptive fields using manually selected dilated convolutional kernels, our approach uses two affine transformation layers in the network’s backbone and operates on feature maps. Feature maps are inflated or shrunk...

article

Dissonant Representations of Visual Space in Prefrontal Cortex during Eye Movements

Xiaomo Chen, Marc Zirnsak, Tirin Moore

Cell Reports > 2018 > 22 > 8 > 2039-2052

We used local field potentials (LFPs) and spikes to investigate representations of visual space in prefrontal cortex and the dynamics of those representations during eye movements. Spatial information contained in LFPs of the frontal eye field (FEF) was differentially distributed across frequencies, with a majority of that information being carried in alpha and high-gamma bands and minimal signal...

article

A Pixel-Encoder Retinal Ganglion Cell with Spatially Offset Excitatory and Inhibitory Receptive Fields

Keith P. Johnson, Lei Zhao, Daniel Kerschensteiner

Cell Reports > 2018 > 22 > 6 > 1462-1472

The spike trains of retinal ganglion cells (RGCs) are the only source of visual information to the brain. Here, we genetically identify an RGC type in mice that functions as a pixel encoder and increases firing to light increments (Pix_ON-RGC). Pix_ON-RGCs have medium-sized dendritic arbors and non-canonical center-surround receptive fields. From their receptive field center, Pix_ON-RGCs receive only...

article

A novel spiking neural network of receptive field encoding with groups of neurons decision

Yong-qiang Ma, Zi-ru Wang, Si-yu Yu, Ba-dong Chen, more

Frontiers of Information Technology & Electronic Engineering > 2018 > 19 > 1 > 139-150

Human information processing depends mainly on billions of neurons which constitute a complex neural network, and the information is transmitted in the form of neural spikes. In this paper, we propose a spiking neural network (SNN), named MD-SNN, with three key features: (1) using receptive field to encode spike trains from images; (2) randomly selecting partial spikes as inputs for each neuron to...

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RECEPTIVE FIELD (316)
VISUAL CORTEX (26)
CAT (18)
RETINA (16)
PLASTICITY (14)
PRIMARY VISUAL CORTEX (13)
NEURONS (12)
ELECTROPHYSIOLOGY (11)
AUDITORY CORTEX (10)
VISION (10)
VISUAL SYSTEM (10)
VISUALIZATION (9)
CORTEX (8)
EDGE DETECTION (8)
INHIBITION (8)
LATERAL GENICULATE NUCLEUS (8)
ATTENTION (7)
RAT (7)
REVERSE CORRELATION (7)
SIMPLE CELL (7)
CONTRAST (6)
FEATURE EXTRACTION (6)
LEARNING (6)
NEURON (6)
NEUROPHYSIOLOGY (6)
ORIENTATION (6)
ADAPTATION (5)
CENTER/SURROUND (5)
COMPUTER VISION (5)
EXTRACELLULAR RECORDING (5)
GANGLION CELL (5)
HUMAN (5)
IMAGE EDGE DETECTION (5)
INFORMATION (5)
NEURAL NETS (5)
NEURAL NETWORK (5)
ORIENTATION SELECTIVITY (5)
PAIN (5)
SOMATOSENSORY CORTEX (5)
SURROUND SUPPRESSION (5)
TUNING (5)
WITHDRAWAL REFLEX (5)
BRAIN MODELING (4)
DEVELOPMENT (4)
DORSAL HORN (4)
ENCODING (4)
MOUSE (4)
OPTOKINETIC NYSTAGMUS (4)
ORIENTATION TUNING (4)
SHAPE (4)
SPARSE CODING (4)
SPATIAL (4)
SPATIAL INTEGRATION (4)
SPINAL CORD (4)
STRIATE CORTEX (4)
[NEUROSCIENCE SOCIETY TOPICS] SENSORY SYSTEMS (4)
ACETYLCHOLINE (3)
ADULT PLASTICITY (3)
ALLODYNIA (3)
AREA 21A (3)
BANDWIDTH (3)
BICUCULLINE (3)
BIOLOGICAL SYSTEM MODELING (3)
CAT VISUAL CORTEX (3)
CODING (3)
COMPUTATIONAL MODELING (3)
DIRECTIONAL SELECTIVITY (3)
DISCRETE COSINE TRANSFORM (3)
DISINHIBITION (3)
DORSAL HORN NEURON (3)
FEATURE DETECTION (3)
GABOR FUNCTION (3)
GANGLION CELLS (3)
GAUSSIAN PROCESSES (3)
HORIZONTAL CELL (3)
HORIZONTAL CONNECTIVITY (3)
INFERIOR COLLICULUS (3)
LOCAL FIELD POTENTIAL (3)
MACAQUE MONKEY (3)
MAPPING (3)
MODEL (3)
MONKEY (3)
MOTION DETECTION (3)
NEURAL CODING (3)
NEUROPATHIC PAIN (3)
NOCICEPTION (3)
OPTIC FLOW (3)
OPTIC TECTUM (3)
OSCILLATION (3)
PATTERN RECOGNITION (3)
PIXEL (3)
RADIO FREQUENCY (3)
SCALE INVARIANCE (3)
SCALE SPACE (3)
SOMATOTOPY (3)
SPATIAL SUMMATION (3)
SPATIO-TEMPORAL (3)
SPIKING NEURAL NETWORKS (3)
SUPERIOR COLLICULUS (3)
SYSTEM IDENTIFICATION (3)
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Elsevier (180)
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Search results

Neuronal activity patterns in microcircuits of the cerebellar cortical C3 zone during reaching

Tooth instance segmentation based on capturing dependencies and receptive field adjustment in cone beam computed tomography

Analysis of extracellular spike waveforms and associated receptive fields of neurons in cat primary visual cortex

TORC1 selectively regulates synaptic maturation and input convergence in the developing visual system

High‐quality retinal vessel segmentation using generative adversarial network with a large receptive field

Identifying what makes a neuron fire

Visual response properties of neurons in the superficial layers of the superior colliculus of awake mouse

Neurons in the superior colliculus wake up to see things differently

Spatial receptive field shift by preceding cross‐modal stimulation in the cat superior colliculus

Multi-language online handwriting recognition based on beta-elliptic model and hybrid TDNN-SVM classifier

Code Under Construction: Neural Coding Over Development

Ret and Substrate-Derived TGF-β Maverick Regulate Space-Filling Dendrite Growth in Drosophila Sensory Neurons

Visual subcircuit-specific dysfunction and input-specific mispatterning in the superior colliculus of fragile X mice

Dynamic Texture Recognition Using Time-Causal and Time-Recursive Spatio-Temporal Receptive Fields

GE‐RM: Efficient global estimation and refined model for salient object detection via elaborate receptive fields

Taking advantage of multi-regions-based diagonal texture structure descriptor for image retrieval

Learning adaptive receptive fields for deep image parsing networks

Dissonant Representations of Visual Space in Prefrontal Cortex during Eye Movements

A Pixel-Encoder Retinal Ganglion Cell with Spatially Offset Excitatory and Inhibitory Receptive Fields

A novel spiking neural network of receptive field encoding with groups of neurons decision

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