Article ; Online: Effects of transcranial magnetic stimulation on the human brain recorded with intracranial electrocorticography.
2024
Abstract: Transcranial magnetic stimulation (TMS) is increasingly used as a noninvasive technique for neuromodulation in research and clinical applications, yet its mechanisms are not well understood. Here, we present the neurophysiological effects of TMS using ... ...
Abstract | Transcranial magnetic stimulation (TMS) is increasingly used as a noninvasive technique for neuromodulation in research and clinical applications, yet its mechanisms are not well understood. Here, we present the neurophysiological effects of TMS using intracranial electrocorticography (iEEG) in neurosurgical patients. We first evaluated safety in a gel-based phantom. We then performed TMS-iEEG in 22 neurosurgical participants with no adverse events. We next evaluated intracranial responses to single pulses of TMS to the dorsolateral prefrontal cortex (dlPFC) (N = 10, 1414 electrodes). We demonstrate that TMS is capable of inducing evoked potentials both locally within the dlPFC and in downstream regions functionally connected to the dlPFC, including the anterior cingulate and insular cortex. These downstream effects were not observed when stimulating other distant brain regions. Intracranial dlPFC electrical stimulation had similar timing and downstream effects as TMS. These findings support the safety and promise of TMS-iEEG in humans to examine local and network-level effects of TMS with higher spatiotemporal resolution than currently available methods. |
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Language | English |
Publishing date | 2024-02-05 |
Publishing country | England |
Document type | Journal Article |
ZDB-ID | 1330655-8 |
ISSN | 1476-5578 ; 1359-4184 |
ISSN (online) | 1476-5578 |
ISSN | 1359-4184 |
DOI | 10.1038/s41380-024-02405-y |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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