Document Detail


Steady-state motion visual evoked potentials produced by oscillating Newton's rings: implications for brain-computer interfaces.
MedLine Citation:
PMID:  22724028     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
In this study, we utilize a special visual stimulation protocol, called motion reversal, to present a novel steady-state motion visual evoked potential (SSMVEP)-based BCI paradigm that relied on human perception of motions oscillated in two opposite directions. Four Newton's rings with the oscillating expansion and contraction motions served as visual stimulators to elicit subjects' SSMVEPs. And four motion reversal frequencies of 8.1, 9.8, 12.25 and 14 Hz were tested. According to Canonical Correlation Analysis (CCA), the offline accuracy and ITR (mean ± standard deviation) over six healthy subjects were 86.56 ± 9.63% and 15.93 ± 3.83 bits/min, respectively. All subjects except one exceeded the level of 80% mean accuracy. Circular Hotelling's T-Squared test (T2 circ) also demonstrated that most subjects exhibited significantly strong stimulus-locked SSMVEP responses. The results of declining exponential fittings exhibited low-adaptation characteristics over the 100-s stimulation sequences in most experimental conditions. Taken together, these results suggest that the proposed paradigm can provide comparable performance with low-adaptation characteristic and less visual discomfort for BCI applications.
Authors:
Jun Xie; Guanghua Xu; Jing Wang; Feng Zhang; Yizhuo Zhang
Related Documents :
10836638 - Do anticipatory postural adjustments occurring in different segments of the postural ch...
19729308 - Does increased postural threat lead to more conscious control of posture?
15698708 - The use of a safety harness does not affect body sway during quiet standing.
17313278 - An investigation of rugby scrimmaging posture and individual maximum pushing force.
2341668 - A population study of auditory-nerve fibers in unanesthetized decerebrate cats: respons...
10356878 - Electromyogram amplitude estimation with adaptive smoothing window length.
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2012-06-19
Journal Detail:
Title:  PloS one     Volume:  7     ISSN:  1932-6203     ISO Abbreviation:  PLoS ONE     Publication Date:  2012  
Date Detail:
Created Date:  2012-06-22     Completed Date:  2012-12-12     Revised Date:  2013-07-12    
Medline Journal Info:
Nlm Unique ID:  101285081     Medline TA:  PLoS One     Country:  United States    
Other Details:
Languages:  eng     Pagination:  e39707     Citation Subset:  IM    
Affiliation:
School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, People's Republic of China.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Adult
Brain-Computer Interfaces*
Electroencephalography
Evoked Potentials, Visual / physiology*
Humans
Male
Motion Perception / physiology
Photic Stimulation / methods*
Young Adult
Comments/Corrections

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Inhibition of non-homologous end joining repair impairs pancreatic cancer growth and enhances radiat...
Next Document:  Sodium stibogluconate (SSG) & paromomycin combination compared to SSG for visceral leishmaniasis in ...