title: Trans3D: a free tool for dynamical visualization of EEG activity transmission in the brain.
abstract: The problem of functional connectivity in the brain is in the focus of attention nowadays, since it is crucial for understanding information processing in the brain. A large repertoire of measures of connectivity have been devised, some of them being capable of estimating time-varying directed connectivity. Hence, there is a need for a dedicated software tool for visualizing the propagation of electrical activity in the brain. To this aim, the Trans3D application was developed. It is an open access tool based on widely available libraries and supporting both Windows XP/Vista/7(™), Linux and Mac environments. Trans3D can create animations of activity propagation between electrodes/sensors, which can be placed by the user on the scalp/cortex of a 3D model of the head. Various interactive graphic functions for manipulating and visualizing components of the 3D model and input data are available. An application of the Trans3D tool has helped to elucidate the dynamics of the phenomena of information processing in motor and cognitive tasks, which otherwise would have been very difficult to observe. Trans3D is available at: http://www.eeg.pl/.
authors: Institute of Computer Science, Warsaw University of Technology, Nowowiejska 15/19, 00-665 Warszawa, Poland. Electronic address: g.blinowski@ii.pw.edu.pl.
authors: Grzegorz
authors: G
authors: Blinowski
authors: Department of Biomedical Physics, Faculty of Physics, University of Warsaw, Hoża 69, 00-681 Warszawa, Poland.
authors: Maciej
authors: M
authors: Kamiński
authors: CC Otwarte Systemy Komputerowe Sp. z o.o., Rakowiecka 36, 02-532 Warszawa, Poland.
authors: Dariusz
authors: D
authors: Wawer
mesh_terms: D001931:Brain Mapping / Q000379:methods*; D002540:Cerebral Cortex / Q000502:physiology*; D004569:Electroencephalography; D006801:Humans; D021621:Imaging, Three-Dimensional / Q000379:methods*; D012984:Software
keywords: 3D visualization; Directed transfer function; Effective connectivity; Transmission between brain structures; Visualization software