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[Magnetic stimulation using double coils--methodology and normal findings].

D Claus¹, A Spitzer

¹Neurologische Universitätsklinik Erlangen-Nürnberg.

EEG-EMG Zeitschrift Fur Elektroenzephalographie, Elektromyographie Und Verwandte Gebiete

|March 1, 1991

Summary

This study demonstrates how figure-of-eight coils enable precise magnetic stimulation of the motor cortex and spinal roots. Optimal coil positioning is detailed for evoking muscle responses in hands and legs.

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Area of Science:

Neuroscience
Biophysics

Context:

Investigating non-invasive brain stimulation techniques.
Utilizing magnetic stimulation for motor pathway assessment.

Purpose:

To determine optimal parameters for magnetic stimulation of the motor cortex and spinal nerve roots.
Comparing figure-of-eight coils with circular coils for isolated cortical excitation.

Summary:

The study used figure-of-eight coils for magnetic stimulation in 45 subjects.
Optimal coil placement was identified for stimulating hand and leg muscles via motor cortex excitation.
Cervical roots were effectively stimulated using figure-of-eight coils.

Impact:

Provides precise methods for researchers and clinicians using magnetic stimulation.

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Enhances understanding of motor pathway excitability and control.

Facilitates targeted neurophysiological assessments.