/* * To change this template, choose Tools | Templates * and open the template in the editor. */ /** * An EEG voltage signal represents a difference between the voltages at two * electrodes, the display of the EEG for the reading encephalographer may be * set up in one of several ways. The representation of the EEG channels is * referred to as a montage. * <ul> * <li>Bipolar montage</li> * Each channel (i.e., waveform) represents the difference between two adjacent * electrodes. The entire montage consists of a series of these channels. * For example, the channel "Fp1-F3" represents the difference in voltage between * the Fp1 electrode and the F3 electrode. The next channel in the montage, * "F3-C3," represents the voltage difference between F3 and C3, and so on * through the entire array of electrodes. * <li>Referential montage</li> * Each channel represents the difference between a certain electrode and * a designated reference electrode. There is no standard position for this * reference; it is, however, at a different position than the "recording" * electrodes. Midline positions are often used because they do not amplify * the signal in one hemisphere vs. the other. Another popular reference is * "linked ears," which is a physical or mathematical average of electrodes * attached to both earlobes or mastoids. * <li>Average reference montage</li> * The outputs of all of the amplifiers are summed and averaged, and this averaged * signal is used as the common reference for each channel. * * This package contains Montages and structures associated * with them. * The most important are MontageGenerators, which can create * a montage of a specified type (depending on the type of the generator). * Single montage contains Channels which are composed * of SourceChannels (as primary and reference channels). * There are also definitions of filters of montage samples. <br> * source: {@code http://en.wikipedia.org/wiki/Electroencephalography} */ package org.signalml.domain.montage;