Identifying transcranial magnetic stimulation induced EEG signatures of different neuronal elements in primary motor cortex.

ABSTRACT:

Objective

To investigate the neuronal elements involved in the activation of corticospinal neurons in the primary motor cortex (M1).

Methods

We studied 10 healthy subjects. Cortical evoked potentials with different components induced by monophasic transcranial magnetic stimulation (TMS) in anterior-posterior and posterior-anterior currents recorded with electroencephalography (EEG) were analyzed.

Results

EEG signatures with P25 and N45 components recorded at the C3 electrode with posterior-anterior current were larger than those with anterior-posterior current, while the signatures with P180 and N280 components recorded at the FC1 electrode with anterior-posterior current were larger than those with posterior-anterior current. The source localization analysis revealed

SUBMITTER: Ni Z 

PROVIDER: S-EPMC9398981 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature