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- Joaquim Pereira Brasil-Neto, L. G. Cohen, Massimiliano Panizza, J. Nilsson, B. J. Roth, M. Hallett
- Journal of clinical neurophysiology : officialâ€¦
- 1992

We studied the effects of coil orientation, stimulus intensity, and shape of the induced current pulse on the amplitudes of motor evoked potentials in the left abductor pollicis brevis of 10 normalâ€¦ (More)

- B. J. Roth, P. J. Basser
- IEEE Transactions on Biomedical Engineering
- 1990

A model is presented to explain the physics of nerve stimulations by electromagnetic induction. Maxwell's equations predict the induced electric field distribution that is produced when a capacitorâ€¦ (More)

- B. J. Roth
- IEEE Transactions on Biomedical Engineering
- 1997

Electrical conductivities in the bidomain model of cardiac tissue are expressed as functions of four parameters. These expressions allow simulations to be performed using nominal, equal, andâ€¦ (More)

- N G Sepulveda, B. J. Roth, J. P. Wikswo
- Biophysical journal
- 1989

A two-dimensional sheet of anisotropic cardiac tissue is represented with the bidomain model, and the finite element method is used to solve the bidomain equations. When the anisotropy ratios of theâ€¦ (More)

- B. J. Roth, J. M. Saypol, M. Hallett, L. G. Cohen
- Electroencephalography and clinicalâ€¦
- 1991

We present a mathematical model for calculating the electric field induced in the head during magnetic stimulation of the cortex. The electric field arises from 2 sources: (1) the changing magneticâ€¦ (More)

- L. G. Cohen, B. J. Roth, +5 authors M. Hallett
- Electroencephalography and clinicalâ€¦
- 1990

The localization of effects from magnetic coil stimulation is not immediately obvious. We measured the magnetic fields produced by several different coils and compared the results with theoreticalâ€¦ (More)

- B. J. Roth
- Circulation research
- 1991

A theoretical model of action potential propagation in a thick strand of cardiac muscle is presented. The calculation takes into account the anisotropic and syncytial properties of the tissue, theâ€¦ (More)

- P. J. Basser, B. J. Roth
- Medical and Biological Engineering and Computing
- 1991

A model of electromagnetic stimulation predicts the transmembrane potential distribution along a myelinated nerve axon and the volume of stimulated tissue within a limb. Threshold stimulus stregth isâ€¦ (More)

- C. Reid Nichols, B. J. Roth, N C Heerema, J. A. Griep, GrÃ©gory Tricot
- The New England journal of medicine
- 1990

Between September 1983 and December 1988, we observed 16 cases of hematologic neoplasia associated with mediastinal germ-cell tumors. Twenty-eight similar cases have been reported in the literature.â€¦ (More)

- B. J. Roth
- Journal of mathematical biology
- 1992

The bidomain model, which describes the behavior of many electrically active tissues, is equivalent to a multi-dimensional cable model and can be represented by a network of resistors and capacitors.â€¦ (More)