Abstract：
:This paper overviews the design and implementation of three neuromorphic integrated circuits developed for the COLAMN ("Novel Computing Architecture for Cognitive Systems based on the Laminar Microcircuitry of the Neocortex") project. The circuits are implemented in a standard 0.35 μm CMOS technology and include spiking and bursting neuron models, and synapses with short-term (facilitating/depressing) and long-term (STDP and dopamine-modulated STDP) dynamics. They enable execution of complex nonlinear models in accelerated-time, as compared with biology, and with low power consumption. The neural dynamics are implemented using analogue circuit techniques, with digital asynchronous event-based input and output. The circuits provide configurable hardware blocks that can be used to simulate a variety of neural networks. The paper presents experimental results obtained from the fabricated devices, and discusses the advantages and disadvantages of the analogue circuit approach to computational neural modelling.
journal_name
J Neurosci Methodsjournal_title
Journal of neuroscience methodsauthors
Wijekoon JH,Dudek Pdoi
10.1016/j.jneumeth.2012.01.019subject
Has Abstractpub_date
2012-09-15 00:00:00pages
93-109issue
1eissn
0165-0270issn
1872-678Xpii
S0165-0270(12)00034-9journal_volume
210pub_type
杂志文章abstract：:The FD Rapid GolgiStain Kit (FD NeuroTechnologies, Inc., Ellicott City, MD) was developed using an improved Golgi-Cox impregnation method to provide stable, sensitive, and convenient staining of mature neurons. However, embryonic neurons cannot be clearly visualized using this method. We have further improved the Golg...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2012.06.007
更新日期：2012-07-30 00:00:00
abstract：:I describe here the successful visualization of interhemispheric callosal connections in the live mammalian cortex. The development of this method was prompted by the finding that fluorescent tracer labeling of groups of cortical neurons, when done under optimal conditions, is sufficiently intense to be visible even i...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/0165-0270(88)90137-9
更新日期：1988-10-01 00:00:00
abstract：:A simple method for making a stimulating multi-channel metallic electrode is proposed. The method uses furnace-shaped multiple fine glass tubes as channel guides for inserted tungsten wires that are pulled as a unit to produce multi-channel metallic electrode with a tapered tip. By shortening the tip, the desired inte...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/s0165-0270(97)00063-0
更新日期：1997-07-18 00:00:00
abstract：BACKGROUND:(1)H magnetic resonance spectroscopy (MRS) has documented an increased Cho/Cr ratio in the dorsolateral prefrontal cortex (DLPFC) in major depressive disorder (MDD). The aim of this study was to investigate neurochemical alterations in the left DLPFC, considered a main area of pathogenesis in depression, usi...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2007.05.022
更新日期：2007-09-15 00:00:00
abstract：:Traumatic brain injury (TBI) is a major cause of death and disability for which there is no cure. One of the issues inhibiting clinical trial success is the lack of targeting specific patient populations due to inconsistencies between clinical diagnostic tools and underlying pathophysiology. The development of reliabl...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2011.08.019
更新日期：2011-10-15 00:00:00
abstract：OBJECTIVES:Schizophrenia is a predominant product of pathological alterations distributed throughout interconnected neural systems. Designing new objectively diagnostic methods are burning questions. Dynamical functional connectivity (DFCs) methodology based on fMRI data is an effective lever to investigate changeabili...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2018.10.011
更新日期：2019-01-01 00:00:00
abstract：:Several neuronal tracing substances were applied to the cut ends of leech cephalic nerves and the resulting backfills into the subesophageal ganglion (sbEG) were mapped. A 12 h incubation in 3 kDa dextrans conjugated either to a fluorochrome or to biotin (subsequently tagged with peroxidase) was satisfactory. In separ...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：
更新日期：1996-08-01 00:00:00
abstract：BACKGROUND:To establish a novel rat model of middle cerebral artery occlusion (MCAO) complicated with prior venous stagnation, and to investigate the role of cerebral venous drainage in neural injury after acute cerebral infarction. NEW METHOD:Eighteen SD rats were randomly divided into two groups: control group and j...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2019.01.016
更新日期：2019-04-15 00:00:00
abstract：:The limited success of immunogold labeling for pre-embedding immunocytochemistry of neuronal antigens is largely attributed to poor penetration of large (5-20 nm) colloidal gold particles. We examined the applicability of using silver intensification of 1 nm colloidal gold particles non-covalently bound to goat anti-r...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/0165-0270(90)90015-8
更新日期：1990-08-01 00:00:00
abstract：:Mutations in leucine-rich repeat kinase 2 (LRRK2) are the most common genetic cause of Parkinson's disease. LRRK2 kinase activity is required for toxicity in neuronal cell cultures suggesting that selective kinase inhibitors may prevent neurodegeneration in patients. Directly monitoring LRRK2 activity in cells would b...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2012.12.015
更新日期：2013-03-30 00:00:00
abstract：:Using EEG, ECoG, MEG, and microelectrodes to record brain activity is prone to multiple artifacts. The main power line (mains line), video equipment, mechanical vibrations and activities outside the brain are the most common sources of artifacts. MEG amplitudes are low, and even small artifacts distort recordings. In ...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2013.04.002
更新日期：2013-07-15 00:00:00
abstract：:The ability to detect and sort overlapping spike waveforms in extracellular recordings is key to studies of neural coding at high spatial and temporal resolution. Most spike-sorting algorithms are based on initial spike detection (e.g. by a voltage threshold) and subsequent waveform classification. Much effort has bee...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2008.06.011
更新日期：2008-09-15 00:00:00
abstract：:2,3,5-Triphenyltetrazolium chloride (TTC), a marker of mitochondrial enzyme activity, is widely used to assess the effects of cerebral ischaemia in vivo. In the present study, we characterised its utility as a simple rapid macrohistological measure of ischaemic damage in brain slices. Coronal rat corticostriatal slice...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/s0165-0270(00)00277-6
更新日期：2000-10-15 00:00:00
abstract：:The weakly acidic, cation-exchange resin Bio-Rex 70 was used at a low pH for chromatography of enkephalins and other peptides containing enkephalin sequences. Recoveries of various peptide standards and peptides in adrenal chromaffin cell extracts were greater than 85%. Catecholamines and other substances such as dens...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/0165-0270(85)90052-4
更新日期：1985-10-01 00:00:00
abstract：BACKGROUND:To optimize survival evaluation of Schwann cells (SCs) in vivo, we tested fluorescent labeling of the nucleus as an improved method of tracking and counting the transplanted SCs at sciatic nerve injury sites in rodents. We also investigated if co-administering cells with the glial growth factor Neuregulin-1 ...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2016.08.009
更新日期：2016-11-01 00:00:00
abstract：:We have attempted to demonstrate the technical requirements and performance of a microscopical assay using a densitometric application of image analysis to measure immunohistochemical stain intensity. Not surprisingly, the techniques required were more demanding than those used for the quantification of field and obje...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/0165-0270(92)90048-i
更新日期：1992-10-01 00:00:00
abstract：:Background muscle activity (BGR) exerts a strong influence on stretch reflex amplitudes. While it is considered important to correct for this influence, which method best able to eliminate the effects of BGR remains unknown. We have therefore compared one previously described and one novel correction method which resp...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/0165-0270(93)90152-h
更新日期：1993-02-01 00:00:00
abstract：OBJECTIVE:Microdialysis measurements of extracellular substances under hyperbaric conditions were manifold used in several investigations. However, to our knowledge there is no analysis, which verified the applicability of microdialysis pumps under hyperbaric conditions. Thus, a goal of this study was to investigate th...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2007.05.001
更新日期：2007-08-30 00:00:00
abstract：:Cross-correlation experiments allow to obtain information about synaptic potentials in human motoneurons. However, recording cross-correlation responses of one motoneuron to transcranial magnetic and electrical peripheral nerve stimulation requires a considerable recording time when both responses are recorded consecu...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/0165-0270(95)00028-s
更新日期：1995-09-01 00:00:00
abstract：:Since transgenes were first cloned into recombinant adenoviruses almost 30 years ago, a variety of viral vectors have become important tools in genetic research. Viruses adeptly transport genetic material into eukaryotic cells, and replacing all or part of the viral genome with genes of interest or silencing sequences...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2011.02.026
更新日期：2011-04-30 00:00:00
abstract：:Triple immunofluorescence method with two mouse monoclonal antibodies and another rabbit polyclonal antibody was established with catalyzed reporter deposition (CARD) amplification on thick floating sections from the rat cerebellum. One of the monoclonal antibodies (anti-calbindin), diluted maximally, probed with anti...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2003.12.003
更新日期：2004-05-30 00:00:00
abstract：:The properties of 4 types of carbon electrodes designed for use as in vivo sensors of easily oxidized species in the mammalian brain have been evaluated in aqueous solutions at physiological pH. The electrodes are formed from a graphite-epoxy mixture, carbon paste, or carbon fibers, and have the geometries of a disk o...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/0165-0270(84)90058-x
更新日期：1984-03-01 00:00:00
abstract：BACKGROUND:Extracellular recordings are performed by inserting electrodes in the brain, relaying the signals to external power-demanding devices, where spikes are detected and sorted in order to identify the firing activity of different putative neurons. A main caveat of these recordings is the necessity of wires passi...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2014.04.018
更新日期：2014-06-15 00:00:00
abstract：:Microdialysis coupled to liquid chromatography (LC) has proven to be a valuable in vivo sampling technique for studying neurotransmitter changes in normal and ischaemic brain. However, few analytical methods have described the simultaneous determination of amino acids, relevant in stroke research, together with the ni...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2004.10.013
更新日期：2005-05-15 00:00:00
abstract：:Recombinant proteins are routinely expressed in heterologous expression systems such as human embryonic kidney 293 (HEK 293) cells. The efficiency of the expression is critical when the expressed protein must be characterized at the single-cell level. Here we describe a simple method by which the protein expression ef...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2004.09.009
更新日期：2005-03-15 00:00:00
abstract：BACKGROUND:Mechanical properties of the brain tissue are crucial to understand the mechanisms of traumatic brain injury (TBI). Injured brain tissue could induce changes of mechanical properties and anatomical structures. However, limited data is available for the injured tissue. NEW METHOD:We developed a custom-built ...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2019.108463
更新日期：2020-01-15 00:00:00
abstract：:We describe an immunocytochemical method for marking microelectrode tracks made during single-unit recordings in long surviving, awake monkeys. This procedure detects the increase in glial fibrillary acidic protein in the glial cells along a microelectrode track using commercially available antibodies. We have success...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/0165-0270(92)90085-r
更新日期：1992-03-01 00:00:00
abstract：:Zebra finches have been widely used to study neurobiology underlying vocal development. Because only male zebra finches learn song, efficient developmental use of these animals requires early determination of sex at ages that precede maturation of secondary sex characteristics. We have developed a sex determination me...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2007.04.007
更新日期：2007-08-15 00:00:00
abstract：:Barckground Alzheimer's disease (AD) is mainly caused by cellular loss and dysfunction of the basal forebrain cholinergic neurons and cholinergic axons in the cortex leading to slowly progressive decline in learning and memory performance. Unfortunately, no definitive treatment to halt neural cell loss exists to date....
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2018.11.019
更新日期：2019-01-15 00:00:00
abstract：:Synaptic connections between retinal cells were studied by recording simultaneously from pre- and postsynaptic cells in the retinal slice preparation. The time course and waveform of the pre- and postsynaptic light responses were monitored, and the postsynaptic voltage responses to presynaptic current injection were m...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/0165-0270(87)90046-x
更新日期：1987-06-01 00:00:00
