Abstract
A continuous somatosensory stimulation evokes a steady state response in the cortex, which can be measured using electroencephalography. We applied mechanical multisine stimulation of the wrist to investigate the properties of the steady state response in the frequency domain. Our results show a response in the contralateral sensorimotor cortex at the stimulated frequencies yet with more power at their even harmonics, indicating substantial nonlinear behavior. The observed cortical response to a mechanical somatosensory stimulation is time invariant and nonlinear, however shows no subharmonics, allowing for the application of a broad range of (non)linear system identification tools.
| Original language | English |
|---|---|
| Title of host publication | IFAC-PapersOnline |
| Editors | Y Zhao |
| Publisher | Elsevier |
| Pages | 1391-1396 |
| Volume | 48 - 28 |
| DOIs | |
| Publication status | Published - 2015 |
| Event | 17th IFAC Symposium on System Identification - Beijing, China Duration: 19 Oct 2015 → 21 Oct 2015 |
Conference
| Conference | 17th IFAC Symposium on System Identification |
|---|---|
| Abbreviated title | SYSID 2015 |
| Country/Territory | China |
| City | Beijing |
| Period | 19/10/15 → 21/10/15 |
Keywords
- electroencephalography
- multisine signal
- robotic manipulator
- somatosensory
- steady state response
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