Propagation through electrically coupled cells. Effects of regional changes in membrane properties.

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Propagation through electrically coupled cells. Effects of regional changes in membrane properties.

The normal process of excitation of the heart involves propagation of action potentials through cardiac regions of different anatomy and different intrinsic membrane properties. Although our understanding of these properties is still incomplete, it is well accepted that the parameters measured from a single cell penetration in an electrical syncytium (e.g., action potential duration, rate of ri...

متن کامل

Modeling of Wave Propagation through Soft Electrically Tunable Metamaterials

In this paper, we present our numerical simulation capability, developed within the Abaqus/Standard environment, for modeling steady-state wave propagation through soft dielectric elastomer composites. Specifically, we will discuss (a) a nonlinear user-element subroutine (UEL) to simulate the coupled electric-displacement response of these soft materials, (b) a user MPC subroutine to enforce co...

متن کامل

The generation of oscillations in networks of electrically coupled cells.

In several biological systems, the electrical coupling of nonoscillating cells generates synchronized membrane potential oscillations. Because the isolated cell is nonoscillating and electrical coupling tends to equalize the membrane potentials of the coupled cells, the mechanism underlying these oscillations is unclear. Here we present a dynamic mechanism by which the electrical coupling of id...

متن کامل

Dendritic effects in networks of electrically coupled fast-spiking interneurons

We examine how the location of weak electrical coupling affects phase-locking in a pair of model fast-spiking interneurons. Each model neuron consists of a somatic compartment and a passive dendritic compartment. At relatively low frequencies, the phase-locking structure for somatic and dendritic coupling is qualitatively the same: below a critical frequency, stable synchronous and anti-phase a...

متن کامل

Effects of extracellular potassium diffusion on electrically coupled neuron networks.

Potassium accumulation and diffusion during neuronal epileptiform activity have been observed experimentally, and potassium lateral diffusion has been suggested to play an important role in nonsynaptic neuron networks. We adopt a hippocampal CA1 pyramidal neuron network in a zero-calcium condition to better understand the influence of extracellular potassium dynamics on the stimulus-induced act...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Circulation Research

سال: 1983

ISSN: 0009-7330,1524-4571

DOI: 10.1161/01.res.53.4.526