What is dipole modeling?

A popular model for the neural activity produced in response to a given sensory stimulus is a set of current dipoles, where each dipole represents the primary current associated with the combined activation of a large number of neurons located in a small volume of the brain.

What is equivalent dipole?

Definition. A summation of currents of many neurons with the same positive-negative direction can be mimicked as one strong dipole. This is termed the equivalent current dipole (ECD).

What are the two types of dipoles?

In electromagnetism, there are two kinds of dipoles:

• An electric dipole deals with the separation of the positive and negative charges found in any electromagnetic system.
• A magnetic dipole is the closed circulation of an electric current system.

What are the types of dipoles?

Three types of interaction, all electrostatic in nature, are collectively called van der Waals interactions—permanent dipole-dipole, permanent dipole-induced dipole, and induced dipole-induced dipole.

What is a dipole EEG?

In EEG / MEG this is typically represented by a so-called dipole, or dipole source. A dipole is defined by its location (the dipole position) and a vector that represents the strength and orientation of the flow of electric current (the dipole orientation).

What is dipole moment formula?

What is the Dipole Moment? It is basically the exact measure of the strength associated with an electric dipole. The formula for electric dipole moment for a pair of equal & opposite charges is p = qd, the magnitude of the charges multiplied by the distance between the two.

How do you find the equivalent dipole moment?

The formula for electric dipole moment for a pair of equal & opposite charges is p = qd, the magnitude of the charges multiplied by the distance between the two.

What is tangential dipole?

If the generator occupies a fissural cortex, the potential distribution on the scalp shows both positive and negative polarities. Such a field is often referred to as a “tangential” dipole.

What is the inverse problem in EEG?

Simulating the potentials at the electrode positions from current sources inside the brain is known as the EEG forward problem; inference of the position of the current sources from electrode potentials is known as the EEG inverse problem or the neural source imaging problem (Grech et al., 2008, Brannon et al., 2008).

Which of the following units is a dipole conversion?

Debye
The standard unit Debye is expressed in the electrostatic unit of charge. Hence, the correct answer is (B).