| Presentation | 2002/3/11 A network model of perceptual suppression induced by transcranial magnetic stimulation Yoichi MIYAWAKI, Masato OKADA, |
|---|---|
| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We studied inhibitory effects of transcranial magnetic stimulation (TMS) on neural population. TMS can affect the electromagnetic activities inside our brain with high temporal resolution and without any invasions. Due to these advantages, TMS is widely used as a powerful tool not only in cognitive neuroscience field but also as a clinical treatment. However, the neural mechanisms underlying the effect, especially in theoretical aspect, are quite unclear. In this study, we employed a simple neural population model and computationally analyzed their responses to a TMS-like brief pulsed perturbation. Applying the perturbation, the averaged network activity transiently increased, and then decreased for relatively long lasting period followed by loss of a localized activity pattern. When afferent input has a strong transient component and weak sustained component, there exists a critical latency period in which the perturbation completely suppresses the network activity. These results suggest that inhibitory effects typically observed in TMS studies can be yielded by dynamical interaction in neural population. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Transcranial magnetic stimulation / Inhibitory effect / Network model / Critical latency of the perturbation |
| Paper # | NC2001-158 |
| Date of Issue |
| Conference Information | |
| Committee | NC |
|---|---|
| Conference Date | 2002/3/11(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Neurocomputing (NC) |
|---|---|
| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A network model of perceptual suppression induced by transcranial magnetic stimulation |
| Sub Title (in English) | |
| Keyword(1) | Transcranial magnetic stimulation |
| Keyword(2) | Inhibitory effect |
| Keyword(3) | Network model |
| Keyword(4) | Critical latency of the perturbation |
| 1st Author's Name | Yoichi MIYAWAKI |
| 1st Author's Affiliation | RIKEN Brain Science Institute() |
| 2nd Author's Name | Masato OKADA |
| 2nd Author's Affiliation | RIKEN Brain Science Institute |
| Date | 2002/3/11 |
| Paper # | NC2001-158 |
| Volume (vol) | vol.101 |
| Number (no) | 735 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |