Frequency Domain Characterization of the Somatosensory Steady State Response in Electroencephalography

Martijn P. Vlaar; Frans C.T. van der Helm; Alfred C. Schouten

doi:10.1016/j.ifacol.2015.12.327

Frequency Domain Characterization of the Somatosensory Steady State Response in Electroencephalography

Martijn P. Vlaar, Frans C.T. van der Helm, Alfred C. Schouten

University of Twente

Research output: Contribution to journal › Article › Academic › peer-review

8 Citations (Scopus)

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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
Pages (from-to)	1391-1396
Number of pages	6
Journal	IFAC-papersonline
Volume	48
Issue number	28
DOIs	https://doi.org/10.1016/j.ifacol.2015.12.327
Publication status	Published - 2015

Keywords

electroencephalography
multisine signal
robotic manipulator
somatosensory
steady state response

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Vlaar2015frequnecyFinal published version, 621 KBLicence: CC BY-NC-ND

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title = "Frequency Domain Characterization of the Somatosensory Steady State Response in Electroencephalography",

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AB - 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.

KW - electroencephalography

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Frequency Domain Characterization of the Somatosensory Steady State Response in Electroencephalography

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