Modelling gastrointestinal bioelectric activity

Mechanisms of Bioelectric Activity in Electric Tissue

1. A preparation is described consisting of one or several layers of innervated cells of the electric organ of Electrophorus electricus. 2. Each plaque is multiply innervated and only at its caudal face. The nerve fibers may derive from two or more different nerve trunks. 3. During activity the innervated face becomes negative relative to the non-innervated. 4. The first electrical response of ...

Bioelectric Activity of the Paravertebral Muscles in 1st Degree Scolioses

The objective of this study was to determine the bioelectric activity of the spinal muscles on both sides of the primary curvature, both statically (in a habitual posture) and dynamically (in an active attempt to correct the curvature). The study comprised two groups: one group of 110 children and adolescents aged 6 to 17 (mean age 11.5 ± 3.0) with clinical symptoms of scoliosis (as per Cobb) a...

Flow Visualization for Bioelectric Activity in Human Body

Standard techniques used to visualize the human bioelectric activity are typically restricted to depictions of scalar potentials or activation times. Hence they offer no explicit representation of the geometry of the current. We show in this paper that advanced flow visualization techniques can be successfully applied to this type of data. Applications to cardiovascular research and source reco...

Multiscale Modeling for the Bioelectric Activity of the Heart

The paper deals with the mathematical models for the electrical activity of the heart at the microand macroscopic level. By using the tools of the Γ–convergence theory, a rigorous mathematical derivation of the macroscopic model called “bidomain” directly from the microscopic properties of the tissue is presented.

11 Bioelectric Phenomena