action potential

In some chronic conditions, either as a cause or a consequence of disease, firing of action potentials in certain neurons appears to be disrupted.

A monopolar electrode is often used to stimulate the top of the inserted pedicle screw rather than at the tulip at increasing currents with needle electrodes measuring action potentials in the corresponding muscle groups (Fig.

The median nerve was stimulated at the wrist 12 cm from the active electrode and from antecubital fossa, and the sensory nerve action potentials (SNAP) were recorded with ring electrode from the third digit.

Measurement and Analysis of Static Magnetic Fields That Block Action Potentials in Cultured Neurons", Bioelectromagnetics, 16: 197-206.

To test this hypothesis we examined action potential (AP) generation and inward [Na.

The frequency with which action potentials are generated provides the computer key information about the direction and speed of the user's intended movement.

ADNS-300, CE marked, is able not only to stimulate but also to record compound action potentials from the vagus nerve, using this information to potentially personalize the therapy and provide an improved outcome.

In the heart, NaV channels are essential for the orderly progression of action potentials throughout the myocardium to stimulate rhythmic contraction.

Repetitive stimulation of peripheral nerves with electromyography (EMG) may also demonstrate progressively diminished action potentials or fatigability in up to 90% of cases of generalised MG.

4] De AD Ross, PH Willems, PH Peters, EJ VanZoelen and AP Theuvenet, "Synchronized Calcium Spiking resulting from Spontaneous Calcium Action Potentials in Monolayers of NRK Fibroblasts", Cell Calcium.

Electrocochleographic recordings were made from an implanted round window electrode and the compound action potentials were measured daily at 2-16 kHz for 7 days.

Nociceptors convert the stimuli (which can be mechanical, thermal, or chemical) to electrical signals {transduction), which trigger action potentials.

Some of these chemicals are used to send messages that essentially tell the receiving neuron to reduce its level of action potentials (inhibition), while others signal increases (excitation), and the right balance needs to be maintained for the brain to function and develop normally.

Thus, action potentials will be more difficult to detect than predicted above, unless very brief, carefully timed pulse sequences are developed.

Compound motor action potentials are also frequently affected with the disease.