Biomedical subjects

S J Swerdloff

Publications and source records attributed to S J Swerdloff.

2 recordsLinked to original sources

PubMed1995

Visualization of dipole solutions to the neuromagnetic inverse problem.

We have developed a computer program that computes and displays current-dipole solutions to the neuromagnetic inverse problem. The three-dimensional positions, orientations, and corresponding magnetic field values of the detection coils can be visualized with respect to a realistic representation of the subject's head shape. The topographies of the experimental data, theoretical fit, and residual field are represented without the use of data smoothing or interpolation, allowing more direct comparisons between them. A simple method for displaying dipole source location was implemented.

Brain Mapping↗

PubMed1993

Spatiotemporal visualization of neuromagnetic data.

We describe the development of a computer visualization tool that displays topographic maps of neuromagnetic data on realistic head shapes. Two topographic display modes are implemented--a raw mode that depicts the actual position, orientation, and corresponding magnetic field data of each detection coil with respect to the head shape, and an interpolated mode, where the magnetic data are smoothly interpolated over the scalp. False coloration is used to represent magnetic field strength. The topographic displays are coupled with wave form displays in order to integrate spatial and temporal visualization of the data. The X Window system is used to write device independent, network-transparent computer code.

Brain Mapping↗