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Electrode used in electrophysiology
A microelectrode is an electrode used in electrophysiology either for recording neural signals or for the electrical stimulation of nervous tissue. They
Microelectrode
Device in neurophysiology
Microelectrode arrays (MEAs) (also referred to as multielectrode arrays) are devices that contain multiple (tens to thousands) microelectrodes through
Microelectrode_array
Method to measure responses of a neuron
measuring the electro-physiological responses of a single neuron using a microelectrode system. When a neuron generates an action potential, the signal propagates
Single-unit_recording
Purposeful modulation of nervous system activity
modulation of the nervous system's activity using invasive (e.g., microelectrodes) or non-invasive means (e.g., transcranial magnetic stimulation, transcranial
Neurostimulation
Device in neurophysiology
Stretchable microelectrode arrays (stretchable MEAs or sMEAs) (also referred to as stretchable multielectrode arrays) are a specialized type of microelectrode array
Stretchable microelectrode array
Stretchable_microelectrode_array
Connection between brain and computer
MEG, MRI) and partially invasive (ECoG and endovascular) to invasive (microelectrode array), based on how physically close electrodes are to brain tissue
Brain–computer_interface
Electrical properties of biological cells
cell. To make an intracellular recording, the tip of a fine (sharp) microelectrode must be inserted inside the cell, so that the membrane potential can
Electrophysiology
loosely modeled by Euler's critical load equation. In a study designing microelectrodes to minimize tissue inflammation, two microneedles were tested for maximum
Mosquito proboscis inspired needles
Mosquito_proboscis_inspired_needles
American scientist (1919–2019)
States university. In 1947, he co-developed the Gerard-Graham-Ling microelectrode: a device that allows scientists to more accurately measure the electrical
Gilbert_Ling
ways in which intracellular pH (pHi) can be measured including with a microelectrode, dye that is sensitive to pH, or with nuclear magnetic resonance techniques
Intracellular_pH
Transient electrical signals
high-impedance microelectrode placed in the midst of the population of cells generating it. They can be recorded, for example, via a microelectrode placed in
Local_field_potential
Light, strong and rigid composite material
carbon-fiber disk microelectrode or the fiber is cut to a length of 75–150 μm to make carbon-fiber cylinder electrode. Carbon-fiber microelectrodes are used either
Carbon-fiber reinforced polymer
Carbon-fiber_reinforced_polymer
American brain-computer interface company
invasive brain–computer interface. The interface includes a thin-film microelectrode array that conforms to the brain surface without penetrating the brain
Precision_Neuroscience
Neurosurgical procedure for treating depression, OCD, and chronic pain
processing areas. These findings have also been confirmed by stereotactic microelectrode analysis of single cortical neurons in a study, which involved nine
Bilateral_cingulotomy
Subset of neuroprosthetics
design and placement. A typical cortical implant is an implantable microelectrode array, which is a small device through which a neural signal can be
Cortical_implant
Alloys of the precious metals platinum and iridium
other extremely widespread use for Pt/Ir alloy is fabrication of metal microelectrodes for electrical stimulation of nervous tissue and electrophysiological
Platinum–iridium_alloy
Orientation selectivity as it was first seen and measured in the cat's visual cortex via microelectrode analysis paired with visual stimulus.
Orientation_selectivity
Material fibers about 5–10 μm in diameter composed of carbon
carbon-fiber disk microelectrode, or the fiber is cut to a length of 75–150 μm to make a carbon-fiber cylinder electrode. Carbon-fiber microelectrodes are used
Carbon_fibers
Polarograph uses an electrolytic cell consisting of an electrode or microelectrode small area, generally of the mercury drop type, which is a very fine
Polarograph
German chemist and biosystems engineering professor (born 1964)
the field of CMOS-based chemical and biomicrosensors and high-density microelectrode arrays. From 1985 to 1991, Hierlemann studied chemistry at the University
Andreas_Hierlemann
Discipline in biomedical engineering
closely related, however, to the field of neural implants, such as microelectrode arrays that can stimulate and record brain function, and with further
Neural_engineering
Component of stress coplanar with a material cross section
electro-diffusional method measures the wall shear rate in the liquid phase from microelectrodes under limiting diffusion current conditions. A potential difference
Shear_stress
American physiologist (1857–1945)
well-known invention was an intracellular micropipette electrode (known as microelectrode). Dr. Hyde had observed that electrolytes in high concentrations affect
Ida_Henrietta_Hyde
Group of medical conditions characterized by irregular heartbeat
in the occurrence of unidirectional block, as studied with multiple microelectrodes". Circulation Research. 39 (2): 168–177. doi:10.1161/01.RES.39.2.168
Arrhythmia
pentoxide pellet electrodes of 1 mm in diameter, or iridium penetrating microelectrodes of 6500 μm2. As a result of these restricted methods, Shannon states
Shannon_criteria
Laboratory technique in electrophysiology
channel molecules. This type of electrode is distinct from the "sharp microelectrode" used to puncture cells in traditional intracellular recordings, in
Patch_clamp
Electric current produced in living cells
the glass microelectrode (or micropipette), the vibrating (or self-referencing) voltage probe, and the vibrating ion-selective microelectrode. The former
Developmental_bioelectricity
British research scientist
invasively interface the nervous system of a human to a computer. In 2002 a microelectrode array was implanted in the median nerve of a healthy human and connected
Mark_Gasson
Junction between motor neuron and muscle fiber
receptors (nAChRs) at the neuromuscular junction. With this technique, a microelectrode was placed inside the motor endplate of the muscle fiber, and a micropipette
Neuromuscular_junction
Philosophical thought experiment
(1996) Science Adaptive flight control with living neuronal networks on microelectrode arrays Architecture for Neuronal Cell Control of a Mobile Robot
Brain_in_a_vat
American neurotechnology company
accompanies the brain tissue response to chronically implanted silicon microelectrode arrays". Experimental Neurology. 195 (1): 115–126. doi:10.1016/j.expneurol
Neuralink
Medical diagnostic method
study nerve impulses of an identified nerve, a fine tungsten needle microelectrode is inserted into the nerve and connected to a high input impedance differential
Microneurography
Electric circuit model in neuroscience
neuroscience, current source density analysis is the practice of placing a microelectrode in proximity to a nerve or a nerve cell to detect current sourcing from
Current source density analysis
Current_source_density_analysis
Period of symptoms due to excessive or synchronous neuronal brain activity
from people without seizures. One example of biomarkers is the use of microelectrodes, which can be used to monitor abnormal electrical brain activity. Another
Seizure
Cell culture of neurons
specific mix of gases (air with 5% CO2 is typical) sealed inside. A microelectrode array (MEA), also commonly called a multielectrode array, is a patterned
Cultured_neuronal_network
American electrochemist (born 1947)
of the ultramicroelectrode and microelectrode voltammetry. At the same time as Wightman's innovations, the microelectrode was developed independently by
Mark_Wightman
Surgical procedure
postoperatively, which improved spontaneously at 3–6 months. In a third study, microelectrode mapping (guided stereotactic surgery on the subthalamic nucleus) was
Thalamotomy
population of neurons by passing a small electrical current through a nearby microelectrode. Microstimulation is used in neuroanatomical research to identify the
Microstimulation
Method of measuring biological cell currents
experimenter. Cole developed the voltage clamp technique before the era of microelectrodes, so his two electrodes consisted of fine wires twisted around an insulating
Voltage_clamp
Study of neural function
Blau, Axel; Ziegler, Christiane; Hierlemann, Andreas (2006). "CMOS Microelectrode Array for Bidirectional Interaction With Neuronal Networks". IEEE Journal
Neurophysiology
Brain kept alive in vitro outside of a body
Dockendorf made an "adaptive flight control with living neuronal networks on microelectrode arrays". Teams at the Georgia Institute of Technology and the University
Isolated_brain
Electrophysiological setup. Micromanipulators are used to position microelectrodes
Micromanipulator
Microtechnology
creating an oligonucleotide microarray are by gel pads (Motorola), microelectrodes (Nanogen), photolithography (Affymetrix), and inkjet technology (Agilent)
Bio-MEMS
Neuron communication by electric impulses
Schanne & Hébert 1969, Some Electrical Properties of Fine-Tipped Pipette Microelectrodes. Brazier 1961; McHenry & Garrison 1969; Worden, Swazey & Adelman 1975
Action_potential
Mineralized debris within the crevices of the tonsils
immune to antibiotic treatment. By use of confocal microscopy and microelectrodes, biofilms similar to dental biofilms were shown to be present in the
Tonsil_stones
German scientist (born 1950)
between neurones in the visual cortex based on recordings with a multi-microelectrode] (Thesis) (in German). OCLC 720817219. "Michael Bach's CV". "Optical
Michael Bach (vision scientist)
Michael_Bach_(vision_scientist)
American medical device company
Phase II SBIR grant from the NIH to develop high-density intracortical microelectrode arrays for clinical applications. This grant included collaboration
Paradromics
Organic chemical that functions both as a hormone and a neurotransmitter
and computer scientists interested in machine learning. Evidence from microelectrode recordings from the brains of animals shows that dopamine neurons in
Dopamine
Method of chemical analysis
10 Hz is routinely employed. FSCV in combination with carbon-fiber microelectrodes became a very popular method for detection of neurotransmitters, hormones
Fast-scan_cyclic_voltammetry
Type of neuron
direction. To detect grid cell activity in a typical rat experiment, a microelectrode that can record single-neuron activity is implanted in the dorsomedial
Grid_cell
Neurosurgical treatment
deep nuclei of the brain. Microelectrodes (usually 1–5) are delivered through the burr holes. A combination of microelectrode recordings, microstimulation
Deep_brain_stimulation
biological processes. NMT uses specialized flux sensors, derived from microelectrodes, to measure this dynamic ion/molecule activity called flux around an
Non-invasive micro-test technology
Non-invasive_micro-test_technology
Electrophysiological method to record electrical activity of the brain
and propagation. Some clinical sites record data from penetrating microelectrodes. Sometimes it is more convenient or clinically necessary to perform
Electroencephalography
American neuropsychiatrist
graduated from medical school and learned from Stanley Crain how to make microelectrodes that could be used for intracellular recordings of crayfish giant axons
Eric_Kandel
Discipline related to neuroscience and biomedical engineering
transferred to an implanted unit that stimulates the auditory nerve through a microelectrode array. Through the replacement or augmentation of damaged senses, these
Neuroprosthetics
Italian botanist
Mancuso, together with several biochemists, developed a "non-invasive" microelectrode based on carbon nanotube technology for measuring and fixing the flow
Stefano_Mancuso
Coordination of events to operate a system in unison
September 2024). "Modeling seizure networks in neuron-glia cultures using microelectrode arrays". Frontiers in Network Physiology. 4 1441345. doi:10.3389/fnetp
Synchronization
Branch of chemical engineering
comprises small batteries, amperometric sensors, microfluidic devices, microelectrodes, solid-state devices, voltammetry at disc electrodes, etc. More than
Electrochemical_engineering
Sense that detects smells
only one odor, and the rest to only a few. It has been shown through microelectrode studies that each individual odor gives a particular spatial map of
Sense_of_smell
Federal research center in California, US
117, and 118. Invention of new healthcare technologies, including a microelectrode array for construction of an artificial retina, a miniature glucose
Lawrence Livermore National Laboratory
Lawrence_Livermore_National_Laboratory
American cognitive scientist (1920–2011)
Vo.l. 37, pp. 425–443; (with McCulloch, Pitts, and Dell) 1953 On Microelectrodes for Plotting Currents in Nervous Tissue, Proceedings of the Physiological
Jerome_Lettvin
Electric potential difference between interior and exterior of a biological cell
potential Electrochemical potential Goldman equation Membrane biophysics Microelectrode array Saltatory conduction Surface potential Gibbs–Donnan effect Synaptic
Membrane_potential
French neuroscientist (1916–2003)
Albe-Fessard studied the electrical activity of electric fish. Her work on microelectrode recordings of a cat's cerebral cortex in the 1950s was one of the first
Denise_Albe-Fessard
Brain implant
prosthetic or other external object. The sensor is in the form of a microelectrode array, formerly known as the Utah Array, which consists of 100 hair-thin
BrainGate
Shower of organic detritus in the ocean
(February 1987). "Can microscale chemical patches persist in the sea? Microelectrode study of marine snow, fecal pellets". Science. 235 (4789): 689–91. Bibcode:1987Sci
Marine_snow
Growth or movement of an organism in response to an electric field
The researchers applied an increasing voltage to not wear out the microelectrodes and not cause the pollen tubes and grains to burst. It was difficult
Electrotropism
American neuroscientist
techniques he uses—primarily, stimulation of brain areas of primates with microelectrodes—have helped demonstrate cause and effect rather than merely show a
William_Newsome
Species of bacterium
Measured with Individual Thiomargarita namibiensis Cells by Using Microelectrodes". Applied and Environmental Microbiology. 68 (11): 5746–5749. Bibcode:2002ApEnM
Thiomargarita_namibiensis
Nigerian professor, chemist, and inventor
inventor working at New Jersey Institute of Technology. She has developed microelectrode biosensors for detection of drugs and explosives and is working on the
Omowunmi_Sadik
Topics referred to by the same term
electrocardiography Means–ends analysis a paradigm for automated problem solving Microelectrode array, a device to record or stimulate electrophysiological activity
MEA
Organelle used in regulating osmosis
and the direct measurement of ion concentrations inside the CV using microelectrodes led to the following model: the pumping of protons either into or out
Contractile_vacuole
to this difference in stiffness. This is a problem for instance in microelectrodes implanted into the brain which is extremely soft. The damage caused
Mechanically gradient polymers
Mechanically_gradient_polymers
Gross, he started a project aiming to exploit the potentialities of the Microelectrode Arrays technique in the field of the in vitro electrophysiology to investigate
Massimo_Grattarola
Medical field involved in regenerating tissues
direct-current fields. Proposed tools include voltage-sensitive dyes, microelectrodes, and wearable or implantable stimulators. Some researchers and commentators
Regenerative_medicine
Swedish neuroscientist
sensory processing. In one experiment, done in 1959, they inserted a microelectrode into the primary visual cortex of an anesthetized cat. They then projected
Torsten_Wiesel
G-proteins, resulting in slower but longer-lasting cellular effects. Microelectrode A very fine electrode used to record the electrical activity of individual
Glossary_of_neuroscience
Central organ of the human nervous system
cortical areas and their systemic function. By using much smaller microelectrodes, single-unit recordings can be made from a single neuron that give
Human_brain
Particle motion in a non-uniform electric field due to dipole-field interactions
simultaneous management of thousands of cells in microfluidic devices. Single microelectrodes on the floor of a flow cell are managed by a CMOS chip to form thousands
Dielectrophoresis
Phenomenon of visual perception
suppression. The brain basis of flash suppression has been studied using microelectrode recordings in the visual brain of the macaque monkey and in the human
Flash_suppression
Direct communication between animal brains
collaboration between rats in distant cages linked by signals from cortical microelectrode arrays implanted in their brains. The rats were rewarded when actions
Brain–brain_interface
Device for long-term recording or stimulation of neural activity in living tissue
implanted, and cannot easily be made more sensitive. Current implantable microelectrodes are unable to record single- or multi-unit activity reliably on a chronic
Chronic_electrode_implant
electrical signals recorded in the vicinity of individual neurons with a microelectrode (exception: 'spikes' in EEG recordings). In these recordings action
Spike_sorting
Type of electrophysiological monitoring
PMID 12764080. Ulbert, I; Halgren, E; Heit, G; Karmos, G (2001). "Multiple microelectrode-recording system for human intracortical applications". Journal of Neuroscience
Electrocorticography
Method of analyzing electrochemical reactions
for the other two electrode potentials to be compared to. In case of microelectrodes with small dimensions, the counter electrode and the reference electrode
Voltammetry
American botanist
Cornell University. His early research at the center focused on using microelectrodes for root ion transport processes. His efforts were recognized in 1990
Leon_Kochian
Regions of neurons in the brain
found to prefer crossing iso-orientation lines perpendicularly. During microelectrode experiments, it is normal to see penetrations where eye dominance changes
Orientation_column
French neuropsychologist (1935–2026)
Imbert et P. Buser, Sensory Projections to the Motor Cortex in Cats : a Microelectrode Study. in Sensory Communication, Endicott House, W. Rosenblith, The
Michel_Imbert
Nanotechnology simulation of human organ function
lab-on-a-chip similarly combined a microfluidic network in PDMS with planar microelectrodes, this time to measure extracellular potentials from single adult murine
Organ-on-a-chip
Implant for connecting devices to nerves
testing, differentiated planning, and functional training. Typically microelectrode devices are implanted adjacent to, around or within the nerve trunk
Peripheral_nerve_interface
Louisa Mackay (1843–1908), cooking utensils Omowunmi Sadik (born 1964), microelectrode sensing, environmental applications Marie Curie (1867–1934), radioactivity
List of women innovators and inventors by country
List_of_women_innovators_and_inventors_by_country
Chemical compound
1951). "The Anodic Oxidation of Thallous Ion on the Rotating Platinum Microelectrode". Journal of the American Chemical Society. 73 (4): 1755–1756. doi:10
Thallium(III)_hydroxide
Detectable change in the internal or external surroundings
measurements of electrical potential across the membrane can be obtained by microelectrode recording. Patch clamp techniques allow for the manipulation of the
Stimulus_(physiology)
Part of a PEM fuel cell
Electroosmotic pump Gas diffusion electrode Glossary of fuel cell terms Microelectrode array Carmo, M; Fritz D; Mergel J; Stolten D (2013). "A comprehensive
Membrane_electrode_assembly
Method of analyzing electrochemical reactions
Mark (2006). "Probing Cellular Chemistry in Biological Systems with Microelectrodes". Science. 311 (5767): 1570–1574. Bibcode:2006Sci...311.1570W. doi:10
Cyclic_voltammetry
American researcher, academic and author
Membrane properties of dentate gyrus granule cells: comparison of sharp microelectrode and whole-cell recordings. Journal of Neurophysiology, 67(5), 1346–1358
Tom_Otis
Electrical signal inhibiting a neuron from firing
for an action potential to be generated in the postsynaptic neuron. Microelectrodes can be used to measure postsynaptic potentials at either excitatory
Inhibitory postsynaptic potential
Inhibitory_postsynaptic_potential
Collection of microscopic DNA spots attached to a solid surface
dynamic micromirror devices, ink-jet printing, or electrochemistry on microelectrode arrays. In spotted microarrays, the probes are oligonucleotides, cDNA
DNA_microarray
American chemist
Institute of Technology where he worked with Professor Mark S. Wrighton on microelectrode devices for electrocatalysis. He became a professor at Northwestern
Chad_Mirkin
Type of transistor
(September 1984). "Chemical derivatization of an array of three gold microelectrodes with polypyrrole: Fabrication of a molecule-based transistor". Massachusetts
Organic electrochemical transistor
Organic_electrochemical_transistor
Use of magnesium by organisms
minimum values of km and Vmax.[citation needed] First, ion-specific microelectrodes can be used to measure the internal free ion concentration of cells
Magnesium_in_biology
MICROELECTRODE
MICROELECTRODE
MICROELECTRODE
MICROELECTRODE
Girl/Female
Celtic
Divine one.
Boy/Male
Bengali, Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Telugu
Victory over Army
Girl/Female
Arabic, Muslim, Sindhi
A Name of Women
Girl/Female
Tamil
Smile
Girl/Female
American, British, English, French, Greek, Latin
Follower of Christ; Anointed; Christian; Christ's Follower
Boy/Male
Muslim
The new Moon
Girl/Female
Hindu
Good
Boy/Male
Hindu
Glittering tail suspended above the head
Female
English
Variant spelling of English Chastity, CHASITY means "purity."
Girl/Female
Indian
Young and delicate, Soft
MICROELECTRODE
MICROELECTRODE
MICROELECTRODE
MICROELECTRODE
MICROELECTRODE