Desynchronization of the mu oscillatory activity during motor imagery: A preliminary EEG-fMRI study

Hyun Chul Kim, Jong Hwan Lee

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

The purpose of this study is to identify the correspondence between distinct brain oscillatory activity acquired from electroencephalography (EEG) and blood oxygenation level dependent signals obtained from functional magnetic resonance imaging (fMRI). In this preliminary study, the changes in the mu rhythmic power (8-13Hz) during motor imagery tasks in the EEG data simultaneously acquired with fMRI data were examined. The average mu powers during the left-hand (LH)/right-hand (RH) motor imagery tasks were separately estimated after removing dominant artifacts, such as gradient artifact, ballistocardiogram artifact, and helium-pump artifact. As a result, the relatively lower mu power of the contralateral motor area during LH/RH motor imagery tasks was observed compared to ipsilateral side. This observation indicates a functional signature for motor imagery tasks.

Original languageEnglish
Title of host publication3rd International Winter Conference on Brain-Computer Interface, BCI 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479974948
DOIs
StatePublished - 30 Mar 2015
Event2015 3rd International Winter Conference on Brain-Computer Interface, BCI 2015 - Gangwon-Do, Korea, Republic of
Duration: 12 Jan 201514 Jan 2015

Publication series

Name3rd International Winter Conference on Brain-Computer Interface, BCI 2015

Conference

Conference2015 3rd International Winter Conference on Brain-Computer Interface, BCI 2015
Country/TerritoryKorea, Republic of
CityGangwon-Do
Period12/01/1514/01/15

Keywords

  • Electroencephalography (EEG)
  • functional magnetic resonance imaging (fMRI)
  • motor imagery
  • mu rhythmic power
  • simultaneous EEG-fMRI

Fingerprint

Dive into the research topics of 'Desynchronization of the mu oscillatory activity during motor imagery: A preliminary EEG-fMRI study'. Together they form a unique fingerprint.

Cite this