Academic Journal
Transcranial Static Magnetic Stimulation Dissociates the Causal Roles of the Parietal Cortex in Spatial and Temporal Processing.
| Τίτλος: | Transcranial Static Magnetic Stimulation Dissociates the Causal Roles of the Parietal Cortex in Spatial and Temporal Processing. |
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| Συγγραφείς: | Sugimoto M; Graduate School of Frontier Biosciences, The University of Osaka, Suita 565-0871, Japan.; Center for Information and Neural Networks (CiNet), Advanced ICT Research Institute, National Institute of Information and Communications Technology, Suita 565-0871, Japan., Kimura I; Danish Research Centre for Magnetic Resonance, Department of Radiology and Nuclear Medicine, Copenhagen University Hospital - Amager and Hvidovre, Copenhagen 2650, Denmark., Hayashi MJ; Graduate School of Frontier Biosciences, The University of Osaka, Suita 565-0871, Japan mjhgml@gmail.com.; Center for Information and Neural Networks (CiNet), Advanced ICT Research Institute, National Institute of Information and Communications Technology, Suita 565-0871, Japan. |
| Πηγή: | ENeuro [eNeuro] 2026 Mar 13; Vol. 13 (3). Date of Electronic Publication: 2026 Mar 13 (Print Publication: 2026). |
| Τύπος έκδοσης: | Journal Article |
| Γλώσσα: | English |
| Στοιχεία περιοδικού: | Publisher: Society for Neuroscience Country of Publication: United States NLM ID: 101647362 Publication Model: Electronic-Print Cited Medium: Internet ISSN: 2373-2822 (Electronic) Linking ISSN: 23732822 NLM ISO Abbreviation: eNeuro Subsets: MEDLINE |
| Imprint Name(s): | Original Publication: [Washington, DC] : Society for Neuroscience, [2014]- |
| Ιατρικοί όροι (MeSH): | Transcranial Magnetic Stimulation*/methods , Parietal Lobe*/physiology , Time Perception*/physiology , Space Perception*/physiology, Discrimination, Psychological/physiology ; Motor Cortex/physiology ; Humans ; Female ; Male ; Adult ; Young Adult |
| Περίληψη: | Accurate time estimation is essential for optimizing our perception and actions. Previous neuroimaging and transcranial magnetic stimulation (TMS) studies have suggested that the right inferior parietal lobule (IPL) and supplementary motor area (SMA) are involved in time perception. However, it remains inconclusive whether the activity in these regions is crucial for time perception, partly due to the possible spread of TMS effects across anatomically connected brain regions. Such a remote effect is less likely to happen with transcranial static magnetic stimulation (tSMS), as the static magnetic field is expected to modulate the firing threshold of neurons rather than directly triggering an action potential. In this study, we aimed to determine the causal relevance of local activities in the right IPL and the SMA for temporal processing using tSMS. Forty-eight human volunteers (26 males and 22 females) participated in the study. We measured duration discrimination thresholds, along with orientation discrimination thresholds, using staircase methods before and during the administration of tSMS over the IPL/SMA. Our results indicated no significant changes in duration discrimination thresholds in either the IPL or SMA conditions. In contrast, we observed an improvement in orientation discrimination thresholds in the IPL condition. This improvement correlated with individual differences in the distance between the scalp and the IPL. Overall, our findings demonstrate a causal involvement of the IPL in orientation processing. The correlation between the effects of tSMS and the scalp-to-target distance suggests that the efficacy of tSMS may be sensitive to the magnetic field strength. (Copyright © 2026 Sugimoto et al.) |
| Competing Interests: | The authors declare no competing financial interests. |
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| Contributed Indexing: | Keywords: IPL; SMA; spatial processing; tSMS; temporal processing |
| Entry Date(s): | Date Created: 20260219 Date Completed: 20260708 Latest Revision: 20260813 |
| Update Code: | 20260813 |
| PubMed Central ID: | PMC12990845 |
| DOI: | 10.1523/ENEURO.0366-25.2026 |
| PMID: | 41714144 |
| Βάση Δεδομένων: | MEDLINE |
| ISSN: | 2373-2822 |
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| DOI: | 10.1523/ENEURO.0366-25.2026 |