Action potentials (Electrophysiology)
A practice of caution: spontaneous action potentials or artifactual spikes?
... real action potentials, it should also be acknowledged that atypical action potential propagation patterns do not necessarily mean artifactual ...the action potential propagation tends to be ...
5
A Non-local Model of the Propagation of Action Potentials in Myelinated Neurons
... resting, action potentials and release of transmitter molecules ...since action potentials and some biochemical interactions among neurons, glial cells and blood capillaries are mediated by ...
17
Spontaneous action potentials and neural coding in unmyelinated axons
... spontaneous action potentials, even in the absence of any ...spontaneous action potentials decreases exponentially with the membrane area (see below and Chow & White, ...
18
Correlating cardiac action potentials with metabolic markers during acute cardiac ischemia in rabbit hearts
... effective in measuring the concentrations of key high energy phosphate compounds involved in cardiac metabolism (Gadian DG et. al. 1976; Marsden PK et. al. 2000; Honda H et. al. 2002). By collecting time-resolved 31 P ...
46
Calcium Dependent Action Potentials in Giant Salivary Gland Cells of the Leech: Haementeria Ghilianii: Calcium Removal Induces Dependence on Sodium
... Effect of Ca2+ removal on normal action potentials Ca2+-free saline was found not to abolish the action potential but to depolarize the cell and increase its excitability, resulting in a[r] ...
24
Drug mediated shortening of action potentials in LQTS2 hiPSC cardiomyocytes
... For each of the drugs we used to modulate ion channel function, a 5 · ½ log concentration range was used. While some drugs have previously been used on CMs in culture (eg, Nicorandil [10] and NS1643 [32]), several others ...
11
The influence of action potentials on the development of the central visual pathway in mammals
... Development with retinal blockade When retinal ganglion cell action potentials are blocked from birth for 8 weeks postnatally, by making monocular or binocular injections of 11X, the mor[r] ...
18
Two Types of Action Potentials in a Secretory Epithelium of a Clam Mantle
... A Cardiac-like action potentials recorded in normal saline and 15min after change of solution to O-Ca saline action potential with smaller and shorter plateau.. Resting potentials, —57 m[r] ...
17
Calcium Action Potentials in the Developing Oocytes of an Insect, Rhodnius Prolixus
... Moreover, in 9 of 10 follicles, spontaneous action potentials were observed when the bathing saline was changed from control saline to saline containing 2 mmol I"1 barium.. When follicle[r] ...
14
EXTRAGLANDULAR INNERVATION OF THE SALIVARY CELLS OF THE LEECH HAEMENTERIA GHILIANII: NEURONAL STIMULATION ELICITS GLAND CELL ACTION POTENTIALS AND SECRETION
... Discussion Gland-cell action potentials and secretion The salivary gland cells of Haementeria resemble nerve cells in that depolarization of the cell body produces action potentials whic[r] ...
22
Calcium Dependent Action Potentials in the Second Order Neurones of Cockroach Ocelli
... The recording was made in the ocellar tract and the action potentials were elicited at the off-set of hyperpolarizing current pulses of 9nA, 500 ms.... YAMASHITA AND H..[r] ...
16
Biophysics of extracellular action potentials
... Extracellular action potential (EAP) recordings form one of the primary means for studying the activity of the intact ...intracellular action potentials (IAPs) are so stereotyped? And is this ...
202
Calcium dependent action potentials in the prothoracic gland of Manduca sexta
... Our results show that a majority, if not all, of the action potential seen in the PG can be attributed to the entry of Ca2+ through voltage-activated calcium channels and that the electr[r] ...
6
Attention decouples action potentials from the phase of local field potentials in macaque visual cortical area MT
... timation of the strength of spike-phase coupling is given by the length of vector M (|M|) (also known as the phase-locking value (PLV) [37]), and the locking phase of each pair is given by the angle of vector M. Vector M ...
13
The possible use of applied potential tomography for imaging action potentials in the brain
... With both single and balanced current sources, changes in the skin impedanc~ in the voltage sense circuit eRr, C er) caused the largest variation in the measured v[r] ...
194
Propagated repolarization of simulated action potentials in cardiac muscle and smooth muscle
... There are no low-resistance connections between the cells in several different cardiac muscle and smooth muscle preparations [reviewed in refs. [1] and [2]]. In a computer simulation study of propagation in cardiac ...
9
The Initiation of Action Potentials in the Somatic Musculature of Ascaris Lumbricoides
... Inward membrane current applied in the same manner also decreased the amplitude of the recorded spikes, and with sufficiently high currents each spike was replaced by a small, slower dep[r] ...
20
Calcium dependent action potentials in leech giant salivary cells
... Given that calcium is the current carrier in the salivary cell action potential, it is predicted that the overshoot should vary with external calcium concentration, and that removal of c[r] ...
16
A new approach to modelling the dynamics of cardiac action potentials
... We shall check that our models support spiral waves and shall concentrate on the dispersion in to the curves and obtain restitution chapter previous simple model used for the slow respon[r] ...
137
Properties of Action Potentials from Insect Motor Nerve Fibres
... Fibres in the locust nerve for which the action potential velocity was less than 0-5 m/s corresponding to fibre 2 in the cockroach nerve trunk deviate most markedly from any sort of powe[r] ...
22