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Kim, Sung-Phil
Brain-Computer Interface (BCI) Lab
Research Interests
  • Brain-computer interface, Statistical Signal Processing, Neural Code, Neuromarketing


Development of a simple MR-compatible vibrotactile stimulator using a planar-coil-type actuator

DC Field Value Language Kim, H.-S. ko Choi, M.-H. ko Chung, Y.-G. ko Kim, Sung-Phil ko Jun, J.-H. ko Park, J.-Y. ko Yi, J.-H. ko Park, J.-R. ko Lim, D.-W. ko Chung, S.-C. ko 2015-01-06T00:00:08Z - 2015-01-05 ko 2013-06 ko
dc.identifier.citation BEHAVIOR RESEARCH METHODS, v.45, no.2, pp.364 - 371 ko
dc.identifier.issn 1554-351X ko
dc.identifier.uri -
dc.description.abstract For this study, we developed a magnetic resonance (MR)-compatible vibrotactile stimulator using a planar-coil-type actuator. The newly developed vibrotactile stimulator consists of three units: control unit, drive unit, and planar-coil-type actuator. The control unit controls frequency, intensity, time, and channel, and transfers the stimulation signals to the drive unit. The drive unit operates the planar-coil-type actuator in response to commands from the control unit. The planar-coil-type actuator, which uses a planar coil instead of conventional electric wire, generates vibrating stimulation through interaction of the current of the planar coil with the static magnetic field of the MR scanner. Even though the developed tactile stimulating system is small, simple, and inexpensive, it has a wide range of stimulation frequencies (20 ~ 400 Hz, at 40 levels) and stimulation intensities (0 ~ 7 V, at 256 levels). The stimulation intensity does not change due to frequency changes. Since the transient response time is a few microseconds, the stimulation time can be controlled on a scale of microseconds. In addition, this actuator has the advantages of providing highly repeatable stimulation, being durable, being able to assume various shapes, and having an adjustable contact area with the skin. The new stimulator operated stably in an MR environment without affecting the MR images. Using functional magnetic resonance imaging, we observed the brain activation changes resulting from stimulation frequency and intensity changes. ko
dc.description.statementofresponsibility close -
dc.language 영어 ko
dc.publisher SPRINGER ko
dc.title Development of a simple MR-compatible vibrotactile stimulator using a planar-coil-type actuator ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-84878225277 ko
dc.type.rims ART ko
dc.description.scopustc 1 * 2015-11-04 *
dc.identifier.doi 10.3758/s13428-012-0268-z ko
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