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Cerebral activation patterns in the preparation and movement periods of spontaneous and evoked movements

  • Chunguang Li*
  • , Lining Sun
  • *Corresponding author for this work
  • Soochow University

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

Abstract

Many BMI (brain machine interface) researches on the control of a prosthetic upper-limb/hand have been conducted. However, the BMI researches on the control of a walking-assistive device were few. Otherwise, brain activation was usually measured in a synchronous control mode. This reduced the naturality of brain activation. To realize asynchronous BMI control of a walking-assistive device, this paper studied cerebral activation pattern in both the spontaneous (asynchronous) and evoked (synchronous) movement states. Stepping and squatting stances movements were performed. Cerebral activation was simultaneously measured using NIRS (near-infrared spectroscopy) technology. Analysis of variation revealed that cerebral activation patterns in the two motion modes had a significant difference in both the imaginary/ preparation periods and movement periods. Particularly, the spontaneous movement achieved a more distinct difference than the evoked movement. It is confirmed that cerebral activation in the preparation periods of spontaneous movement is preferable for identifying motion intention of lower limbs.

Original languageEnglish
Title of host publicationAdvances in Brain Inspired Cognitive Systems - 5th International Conference, BICS 2012, Proceedings
Pages72-81
Number of pages10
DOIs
StatePublished - 2012
Externally publishedYes
Event5th International Conference on Advances in Brain Inspired Cognitive Systems, BICS 2012 - Shenyang, China
Duration: 11 Jul 201214 Jul 2012

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume7366 LNAI
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference5th International Conference on Advances in Brain Inspired Cognitive Systems, BICS 2012
Country/TerritoryChina
CityShenyang
Period11/07/1214/07/12

Keywords

  • Cerebral activation
  • actual movement
  • evoked state
  • movement imaginary
  • spontaneous state

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