Abstract：
:Neuronal microcircuits are formed of a myriad of spatially and functionally specific cell classes. Despite the importance of the spatial component in the characterisation of neural circuits, it has not received the attention it deserves. While multi-electrodes are widely used in the study of microcircuits, the spatial information available from them remains largely unexploited for analysis beyond spike sorting. Here we show how the spatial pattern of the extracellular signal is determined by both the electrophysiology and morphology of neurons. Starting from known current source models for the generation of the extracellular potential, we use the spatial pattern observed across a multi-electrode array to localise and classify neurons into putative morphological classes. We evaluated the localisation and classification models with low fitting errors in simulated data. When applying them to recorded data we found correspondence between localisation statistics and expected recording radius and found evidence to support the separation into putative morphological classes. While existing localisation methods do not hold for the recording distances expected on multi-electrode recordings (under 60μm), classification methods have been limited to the temporal component by either characterising spike shape or firing patterns. We show here how the information available from extracellular recordings can be used to localise and classify neurons based on the spatial pattern seen by multi-electrode arrays. Together they can improve current characterisation and classification of neurons based on complementary criteria such us firing pattern and functional characterisation.
journal_name
J Neurosci Methodsjournal_title
Journal of neuroscience methodsauthors
Delgado Ruz I,Schultz SRdoi
10.1016/j.jneumeth.2014.05.037subject
Has Abstractpub_date
2014-08-15 00:00:00pages
115-28eissn
0165-0270issn
1872-678Xpii
S0165-0270(14)00205-2journal_volume
233pub_type
杂志文章abstract：:Aggregates of alpha-synuclein (αSyn) have been described in Parkinson's disease (PD) patients, and recent evidence has suggested that the most toxic αSyn species in PD are small soluble aggregates including oligomers, prefibrils, protofibrils. The physiological function of αSyn is still highly debated, with a possible...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章,评审
doi：10.1016/j.jneumeth.2020.108685
更新日期：2020-05-15 00:00:00
abstract：BACKGROUND:Demyelination is the end product of numerous pathological processes, and also is one of the main causes of neurological disability in Multiple sclerosis (MS). Research into the pathogenesis of MS is hampered by the conventional rodent models' inability to produce stable demyelination. NEW METHOD:Focal demye...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2018.05.024
更新日期：2018-09-01 00:00:00
abstract：:The study aim was to develop a model to generate cerebral evoked potentials (CEPs) by mechanical distention of the duodenum in rats. Twenty Sprague-Dawley rats were anaesthetized and the EEG recorded from the left and right somatosensory cortices (S1L, S1R). A balloon catheter was implanted into the duodenum. A pneuma...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2007.01.014
更新日期：2007-05-15 00:00:00
abstract：:The force-plate actometer is a relatively new computer-based instrument with high temporal and spatial resolution that has been used to measure the behavioral effects of genetic restriction (e.g., inbred mice) and drugs (e.g., dopaminergic agonists and antagonists) on a variety of behaviors in rodents, including locom...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2005.10.002
更新日期：2006-05-15 00:00:00
abstract：BACKGROUND:For reasons of cost and ethical concerns, models of neurodegenerative disorders such as Huntington disease (HD) are currently being developed in farm animals, as an alternative to non-human primates. Developing reliable methods of testing cognitive function is essential to determining the usefulness of such ...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2015.08.025
更新日期：2016-05-30 00:00:00
abstract：BACKGROUND:This manuscript describes a new, multidimensional and data-driven approach to identify outlying datapoints from a first-level fMRI dataset. NEW METHOD:Using three different indicators of data corruption (the fast variance component of DVARS [Δ%D-var], scan-to-scan total displacement [STS], and each scan's o...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2019.02.008
更新日期：2019-04-15 00:00:00
abstract：:Three-dimensional (3D) reaggregate tissue culture provides a means of quantitatively assessing neuronal cell survival under a variety of experimental conditions. A method is presented for estimation of, and comparison between, the total numbers of cells of a given neurochemical type within individual experimental flas...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/0165-0270(94)00110-3
更新日期：1995-01-01 00:00:00
abstract：:Motor neurons innervating tiny muscles in the antennal system of the cockroach, Periplaneta americana, were stained by two new approaches to backfilling motor axons and somata. Both methods are easier, and produce less leakage of dye, than conventional methods that rely on application of dye to the distal cut end of a...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/s0165-0270(00)00203-x
更新日期：2000-06-01 00:00:00
abstract：:This paper describes a technique that has been developed to assess the in vivo morphology of central nervous system (CNS) tissue by immunofluorescence. This technique permits the study of tissue that is mainly just a monolayer of cells. Unlike routine cryosections that are much thicker (10-15 microm), imprinting does ...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/s0165-0270(00)00237-5
更新日期：2000-07-31 00:00:00
abstract：:Myo-inositol (mIns) is a marker of glial cells proliferation and has been shown to increase in early Alzheimer's disease (AD) pathology. mIns exhibits a concentration dependent chemical-exchange-saturation-transfer (CEST) effect (MICEST) between its hydroxyl groups and bulk water protons. Using the endogenous MICEST t...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2012.09.025
更新日期：2013-01-15 00:00:00
abstract：:A new video path analyzer, described herein, monitors travel distance, rearing, stereotypic movement, rotation, and speed of rats simultaneously. The video path analyzer was equipped with a cage (black background, 50 cm long x 50 cm wide x 50 cm high), camera, television screen, computer, and printer. A detailed descr...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/S0165-0270(96)00101-X
更新日期：1996-12-01 00:00:00
abstract：:The increasing use of WGA-HRP as a neuroanatomical tracer has led us to examine two aspects of its uptake and transport. Microelectrophoretic deposits of WGA-HRP were centered in lamina A of the LGd to determine whether or not there is a discrepancy between the size of the deposit site and the effective uptake zone. F...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/0165-0270(84)90026-8
更新日期：1984-06-01 00:00:00
abstract：BACKGROUND:Intracerebral hemorrhage (ICH) is a stroke subtype with the highest mortality rate. Hematoma expansion and re-bleeding post-ICH are common and exacerbate the initial cerebral insult. There is a need for continuous monitoring of the neurologic status of patients with an ICH injury. NEW METHOD:A prototype dev...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2014.05.025
更新日期：2014-09-30 00:00:00
abstract：:This paper describes a new method for the analysis of ensemble coding in populations of receptor afferents. The method is based on principal component analysis (PCA) combined with algorithms for calculation of stimulus separation (discrimination). It allows a quantification of the ability of ensembles of afferents to ...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/0165-0270(95)00089-5
更新日期：1995-12-01 00:00:00
abstract：:We address three problems concerning the quantitative analysis of nerve cell distribution in the cerebral cortex: (i) preparatory tissue deformation (shrinkage); (ii) difficulties in differentiating between small neurons and astroglia; and (iii) the bias introduced by the counting method. We found that staining with R...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/s0165-0270(96)00119-7
更新日期：1996-12-28 00:00:00
abstract：:Most spinal cord injury research is undertaken using in vivo animal models but the extensive care associated with spinalized animals, inherent variability between animals, and complex surgeries makes alternative models especially valuable. Here we present a novel ex vivo model that enables culture of intact post-natal...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2010.07.012
更新日期：2010-09-30 00:00:00
abstract：:We report on the modulation of respiratory sinus arrhythmia in rats with central pattern generator (CPG) hardware made of silicon neurons. The neurons are made to compete through mutually inhibitory synapses to provide timed electrical oscillations that stimulate the peripheral end of vagus nerve at specific points of...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2012.09.024
更新日期：2013-01-15 00:00:00
abstract：:Studies of the neural control of movement often require or benefit from long-term recording of EMG activity from large numbers of muscles involved in a particular motor task. While chronic recording of EMG activity has been described in a number of previous monkey studies, the number of muscles recorded has been somew...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/s0165-0270(00)00155-2
更新日期：2000-03-15 00:00:00
abstract：BACKGROUND:There is a need for effective computational methods for quantifying the three-dimensional (3-D) spatial distribution, cellular arbor morphologies, and the morphological diversity of brain astrocytes to support quantitative studies of astrocytes in health, injury, and disease. NEW METHOD:Confocal fluorescenc...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2015.02.014
更新日期：2015-05-15 00:00:00
abstract：:Microwire array electrodes are important in multi-site, multiple single-unit recording experiments. A simple method is described herein for the construction of microwire arrays consisting of evenly spaced insulated microwires in either horizontal or vertical orientations. Several key steps in the fabrication of a good...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/s0165-0270(03)00235-8
更新日期：2003-12-30 00:00:00
abstract：BACKGROUND:A key point in developmental biology is to understand how gene expression influences the morphological and dynamical patterns that are observed in living beings. NEW METHOD:In this work we propose a methodology capable of addressing this problem that is based on estimating the mutual information and Pearson...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2015.02.019
更新日期：2015-04-30 00:00:00
abstract：:Principal components analysis (PCA) was used to define the linearly dependent factors underlying sensory information processing in the vibrissal sensory area of the ventral posterior medial (VPM) thalamus in eight awake rats. Ensembles of up to 23 single neurons were simultaneously recorded in this area, either during...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/s0165-0270(99)00130-2
更新日期：1999-12-15 00:00:00
abstract：:We describe the fabrication and use of a new type of extracellular micro-electrode array mounted on a flexible transparent polyimide substrate that can be rapidly moved from one part of a culture of vertebrate neurons (rat nodose) to another, which permits co-culture of glia under the neurons and is easily and rapidly...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/s0165-0270(01)00509-x
更新日期：2002-02-15 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：:Fast-scan cyclic voltammetry (FSCV) at a carbon-fiber microelectrode (CFM) provides exquisite temporal and spatial resolution for monitoring brain chemistry. The utility of this approach has recently been demonstrated by measuring sub-second dopamine changes associated with behavior. However, one drawback is the cable...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2004.04.043
更新日期：2004-12-30 00:00:00
abstract：:Brain dialysis has become an important tool for investigating changes in the extracellular levels of neurotransmitters. This paper reviews the experimental variables and criteria that should be considered when interpreting data obtained with the brain dialysis method. Brain dialysis can provide important direct inform...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章,评审
doi：10.1016/0165-0270(90)90039-i
更新日期：1990-09-01 00:00:00
abstract：BACKGROUND:Connectivity analysis in magnetoencephalography (MEG) sensor space is commonly used for the preliminary estimation of the functional relationship between cortical areas, but the results are difficult to interpret due to the field spread effect. To improve the interpretability of sensor-level connectivity ana...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2015.09.012
更新日期：2016-01-15 00:00:00
abstract：BACKGROUND:A breakthrough in the microglia and macrophages field was the identification of the macrophage colony stimulating factor-1 (CSF-1) as a pro-survival factor. Its pharmacological inhibition in animals depletes rapidly all microglia and macrophages. Microglial depletion in mixed glial cultures has always repres...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2019.108537
更新日期：2020-02-15 00:00:00
abstract：:A method which improves carbon fiber microelectrode selectivity for cationic amines by electrocoating the fiber with a thin film of the ionic polymer, Nafion, is described. The selectivity and response speed of these electrodes for the detection of electroactive cationic and anionic species found in brain extracellula...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/0165-0270(87)90011-2
更新日期：1987-12-01 00:00:00
abstract：:Mutant protein aggregates are an important biomarker in Huntington's and other neurodegenerative diseases however their quantification has typically relied on manual imaging and counting, or cell-free assays, which do not allow for concurrent analysis of cell viability. Here we describe four automated high throughput ...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2008.02.007
更新日期：2008-06-15 00:00:00
