Square or Sine : Finding a Waveform with High Success Rate of Eliciting SSVEP
Joint Authors
Choong, Aik Min
Teng, Fei
Lawhead, Pamela
Reichley, Christopher
Chen, Yixin
Waddell, Dwight
Gustafson, Scott
Source
Computational Intelligence and Neuroscience
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-09-15
Country of Publication
Egypt
No. of Pages
5
Main Subjects
Abstract EN
Steady state visual evoked potential (SSVEP) is the brain's natural electrical potential response for visual stimuli at specific frequencies.
Using a visual stimulus flashing at some given frequency will entrain the SSVEP at the same frequency, thereby allowing determination of the subject's visual focus.
The faster an SSVEP is identified, the higher information transmission rate the system achieves.
Thus, an effective stimulus, defined as one with high success rate of eliciting SSVEP and high signal-noise ratio, is desired.
Also, researchers observed that harmonic frequencies often appear in the SSVEP at a reduced magnitude.
Are the harmonics in the SSVEP elicited by the fundamental stimulating frequency or by the artifacts of the stimuli? In this paper, we compare the SSVEP responses of three periodic stimuli: square wave (with different duty cycles), triangle wave, and sine wave to find an effective stimulus.
We also demonstrate the connection between the strength of the harmonics in SSVEP and the type of stimulus.
American Psychological Association (APA)
Teng, Fei& Chen, Yixin& Choong, Aik Min& Gustafson, Scott& Reichley, Christopher& Lawhead, Pamela…[et al.]. 2011. Square or Sine : Finding a Waveform with High Success Rate of Eliciting SSVEP. Computational Intelligence and Neuroscience،Vol. 2011, no. 2011, pp.1-5.
https://search.emarefa.net/detail/BIM-466150
Modern Language Association (MLA)
Teng, Fei…[et al.]. Square or Sine : Finding a Waveform with High Success Rate of Eliciting SSVEP. Computational Intelligence and Neuroscience No. 2011 (2011), pp.1-5.
https://search.emarefa.net/detail/BIM-466150
American Medical Association (AMA)
Teng, Fei& Chen, Yixin& Choong, Aik Min& Gustafson, Scott& Reichley, Christopher& Lawhead, Pamela…[et al.]. Square or Sine : Finding a Waveform with High Success Rate of Eliciting SSVEP. Computational Intelligence and Neuroscience. 2011. Vol. 2011, no. 2011, pp.1-5.
https://search.emarefa.net/detail/BIM-466150
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-466150