| Presentation | 2012-01-28 Frequency "Dependent Effects on ERP P300 by Repetitive Transcranial Magnetic Stimulation Aya SATO, Tetsuya TORII, Masakuni IWAHASHI, Keiji IRAMINA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The present study analyzed the effects of repetitive transcranial magnetic stimulation (rTMS) on brain activity. P300 latency of event-related potential (ERP) was used to evaluate the effect of low-frequency and short-term rTMS by SMG (supramarginal gyrus) and DLPFC (dorsolateral prefrontal cortex), which is considered to be the related area of P300 origin. A figure-eight coil was used to stimulate left-right SMG and left-right DLPFC, and the intensity of magnetic stimulation was 80% of subject's motor threshold. A total of 100-magnetic pulses were applied for rTMS. The effects of stimulus frequency at 1 or 0.5 Hz were determined. Following rTMS, the odd-ball task was performed and P300 latency of ERP was measured. ERP was measured prior to magnetic stimulation as a control. With 1 Hz low-frequency magnetic stimulation to the left SMG, P300 latency decreased. Compared to the control, the latency time difference was approximately 25 ms at Cz. In contrast, 0.5 Hz rTMS resulted in delayed P300 latency. Compared to the control, the latency time difference was approximately 17 ms at Cz. With 1-Hz low-frequency magnetic stimulation to the left DLPFC, P300 latency increased. Compared to the control, the latency time difference was approximately 26 ms at Cz. In contrast, 0.5 Hz rTMS resulted in maintained P300 latency. However, with sham at 1 or 0.5 Hz rTMS, the change of P300 latency wasn't observed. As a result, P300 latency was varied according to rTMS frequency and rTMS stimulation point. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | repetitive transcranial magnetic stimulation / supramarginal gyrus / dorsolateral prefrontal cortex / event-related potential / P300 latency / frequency-dependent |
| Paper # | MBE2011-94 |
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| Conference Information | |
| Committee | MBE |
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| Conference Date | 2012/1/20(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Registration To | ME and Bio Cybernetics (MBE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Frequency "Dependent Effects on ERP P300 by Repetitive Transcranial Magnetic Stimulation |
| Sub Title (in English) | |
| Keyword(1) | repetitive transcranial magnetic stimulation |
| Keyword(2) | supramarginal gyrus |
| Keyword(3) | dorsolateral prefrontal cortex |
| Keyword(4) | event-related potential |
| Keyword(5) | P300 latency |
| Keyword(6) | frequency-dependent |
| 1st Author's Name | Aya SATO |
| 1st Author's Affiliation | Faculty of Health Sciences, Junshin Gakuen University() |
| 2nd Author's Name | Tetsuya TORII |
| 2nd Author's Affiliation | Faculty of Health Sciences, Junshin Gakuen University |
| 3rd Author's Name | Masakuni IWAHASHI |
| 3rd Author's Affiliation | Faculty of Health Sciences, Junshin Gakuen University |
| 4th Author's Name | Keiji IRAMINA |
| 4th Author's Affiliation | Graduate School of Systems Life Sciences, Kyushu University |
| Date | 2012-01-28 |
| Paper # | MBE2011-94 |
| Volume (vol) | vol.111 |
| Number (no) | 423 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |