Sentences with phrase «of microelectrodes»

We recorded neural population activity with arrays of microelectrodes implanted in the PPC of a tetraplegic subject.

To investigate the direct impact of VTA activation on primate behavior, the research team used high - resolution magnetic resonance imaging to guide the placement of microelectrodes within the VTAs of macaque monkeys.

Not exact matches

At the same time, the activity of hundreds of nerve cells was measured with so - called microelectrode arrays.

Julian Dindas, a PhD student at Hedrich's department, used microelectrodes that register the electric voltage of the root hair's cell membrane, the so - called membrane potential, to study the early responses of the cell to a hormone pulse.

What's more is that each microelectrode array is made up of eight «tines,» each with eight microelectrodes which can record from a total 64 subregions of the brain at once.

In a new study by Flesher et al., microelectrode arrays were implanted into the primary somatosensory cortex of a person with spinal cord injury and, by delivering current through the electrodes, generated sensations of touch that were perceived as coming from his own paralyzed hand.

In addition to inflammation, previous microelectrode brain implants made of silicon or microwire have caused neuronal death and glial scarring, which is damage to connective tissue in the nervous system.

Researchers at the University of Southern California Viterbi School of Engineering have developed thin, flexible polymer - based materials for use in microelectrode arrays that record activity more deeply in the brain and with more specific placement than ever before.

In addition, the polymer - based material, called Parylene C, is less invasive and damaging to surrounding cells and tissue than previous microelectrode arrays comprised of silicon or microwires.

Also, the team plans to create devices with even higher density, including a double - sided microelectrode array with 64 electrodes per tine instead of eight — making for a total of around 4,000 electrodes placed in the brain at once.

Using microelectrodes, the researchers recorded the electrical activity of pheromone - sensitive interneurons in male American cockroaches that relay signals of female - producing sex pheromones in the antennal lobe (functional homolog to the mammalian olfactory bulb) to higher - order centers.

Researchers are probing the brain with increasingly powerful tools, including superfast magnetic resonance imagers and microelectrodes that can detect the murmurs of individual brain cells.

The surface of the chip is covered with microelectrodes and the chip is connected to a power source, with the power converted to high - frequency sound waves.

The device, part of the Lab's iCHIP (in - vitro Chip - Based Human Investigational Platform) project, simulates the central nervous system by recording neural activity from multiple brain cell types deposited and grown onto microelectrode arrays.

More than a decade ago microelectrode studies of rats and monkeys revealed place cells that respond when the animals move to a particular spot in a maze.

Protruding from the end of each macroelectrode are as many as 10 flexible microelectrodes that can detect the pulses of individual neurons.

These «intracortical» implants contain 96 microelectrodes that penetrate one to 1.5 millimeters into parts of the motor cortex that control arm movements.

Students in courses routinely record the activity of nerves using a variety of extracellular amplifiers, and they record intracellularly from individual neurons using microelectrodes.

Thin - film microelectrode arrays produced at Lawrence Livermore National Laboratory (LLNL) have enabled development of an automated system to sort brain activity by individual neurons, a technology that could open the door to recording and analyzing unprecedented amounts of neural signals over time...

But the number of neurons at a time with which microelectrode arrays can interface must be increased several-fold while making sure the scale - up does not cause damage to brain tissue.

Linsenmeier et al. [1] measured intraretinal PO2 with microelectrodes in cats with long - standing diabetes and concluded that the retina was hypoxic in the early stages of retinopathy.

In a recent publication in the Journal of the American Chemical Society, researchers from Dynamic Biosensors and the Kurt - Schwabe - Institut Meinsberg have demonstrated the persistent electrical actuation of a large DNA - origami nanostructure on a gold microelectrode.

Dec. 12, 2017 - Thin - film microelectrode arrays produced at Lawrence Livermore National Laboratory (LLNL) have enabled development of an automated system to sort brain activity by individual neurons, a technology that could open the door to recording and analyzing unprecedented amounts of neural signals over time...

Through «heart - on - a-chip» technology — modeling a human heart on an engineered chip and measuring the effects of compound exposure using microelectrodes — Lawrence Livermore researchers hope to ensure potentially lifesaving new drugs are safe and effective while reducing the need for human and animal testing.

Through «heart - on - a-chip» technology — modeling a human heart on an engineered chip and measuring the effects of compound exposure on functions of heart tissue using microelectrodes — Lawrence Livermore National Laboratory (LLNL) researchers hope to decrease the time needed for new drug trials and ensure potentially lifesaving drugs are safe and effective while reducing the need for human and animal testing.

Using microelectrodes to monitor individual neurons in the brains of owl monkeys, he found that the somatosensory cortex has a complete topographical «map» of the entire body surface, in which adjacent areas of the map responded to body parts that were next to one another, such as the fingers.

Microelectrode measurements and pharmacological inhibitor studies carried out on larval stages demonstrated that maintenance of alkaline gastric pH represents a substantial energy sink under acidified conditions that may contribute up to 30 % to the total energy budget.

Vahidi, N., Hirabayashi, M., Mehta, B, Khosla, A., and Kassegne, S., «Bionanoelectronics Platform with DNA Molecular Wires Attached to High Aspect - Ratio 3D Metal Microelectrodes», ECS Journal of Solid State Science and Technology 3 (3), Q29 - Q36 2014.