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Short-lived brain state after cued motor imagery in naive subjects
Short-lived brain state after cued motor imagery in naive subjects
- Source :
- European Journal of Neuroscience, 28(7), 1419-1426. Wiley-Blackwell
- Publication Year :
- 2008
-
Abstract
- Multi-channel electroencephalography recordings have shown that a visual cue, indicating right hand, left hand or foot motor imagery, can induce a short-lived brain state in the order of about 500 ms. In the present study, 10 able-bodied subjects without any motor imagery experience (naive subjects) were asked to imagine the indicated limb movement for some seconds. Common spatial filtering and linear single-trial classification was applied to discriminate between two conditions (two brain states: right hand vs. left hand, left hand vs. foot and right hand vs. foot). The corresponding classification accuracies (mean +/- SD) were 80.0 +/- 10.6%, 83.3 +/- 10.2% and 83.6 +/- 8.8%, respectively. Inspection of central mu and beta rhythms revealed a short-lasting somatotopically specific event-related desynchronization (ERD) in the upper mu and/or beta bands starting approximately 300 ms after the cue onset and lasting for less than 1 s.
- Subjects :
- Adult
medicine.medical_specialty
Time Factors
Photic Stimulation
Movement
Neuropsychological Tests
Electroencephalography
Audiology
Brain mapping
Functional Laterality
Young Adult
Motor imagery
medicine
Humans
Beta Rhythm
Evoked Potentials
Cued speech
Foot (prosody)
Brain Mapping
Communication
medicine.diagnostic_test
Foot
business.industry
General Neuroscience
Hand
Brain state
Imagination
Visual Perception
Cues
business
Psychology
Psychomotor Performance
Subjects
Details
- ISSN :
- 0953816X
- Volume :
- 28
- Issue :
- 7
- Database :
- OpenAIRE
- Journal :
- European Journal of Neuroscience
- Accession number :
- edsair.doi.dedup.....4ef475542ae6fe7dfb7cb2958b1d32d8
- Full Text :
- https://doi.org/10.1111/j.1460-9568.2008.06441.x