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Visual stimulus design for high-rate SSVEP BCI

Visual stimulus design for high-rate SSVEP BCI

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A new approach to realise computer monitor flickers that can be used to elicit steady-state visual evoked potentials (SSVEP) at a flexible frequency is proposed. An SSVEP-based brain–computer interface (BCI) with 16 targets was then implemented using the proposed method. In an online test on three subjects, a high information transfer rate of 75.4 bits/min was achieved.

Inspec keywords: visual evoked potentials; computer displays; brain-computer interfaces

Other keywords: high-rate SSVEP BCI; information transfer rate; steady-state visual evoked potentials; online test; computer monitor flickers; visual stimulus design; brain-computer interface; flexible frequency

Subjects: User interfaces; Interactive-input devices

References

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    2. 2)
      • Sugiarto, I., Allison, B., Graser, A.: `Optimization strategy for SSVEP-based BCI in spelling program application', ICCET'08. Int. Conf. on Computer Engineering and Technology (ICCET'08), Singapore, 2009, 1, p. 223–226.
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      • Y.J. Wang , X.R. Gao , B. Hong , C. Jia , S.K. Gao . Brain–computer interfaces based on visual evoked potentials – feasibility of practical system designs. IEEE Eng. Med. Biol. Mag. , 5 , 64 - 71
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      • G.Y. Bin , X.R. Gao , Z. Yan , B. Hong , S.K. Gao . An online multi-channel SSVEP-based brain–computer interface using a canonical correlation analysis method. J. Neural Eng. , 4
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      • Z.H. Wu , Y.X. Lai , Y. Xia , D. Wu , D.Z. Yao . Stimulator selection in SSVEP-based bci. Med. Eng. Phys. , 8 , 1079 - 1088
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      • D.H. Zhu , J. Bieger , G.G. Molina , R.M. Aarts . A survey of stimulation methods used in SSVEP-based BCIs. Comput. Intell. Neurosci.
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      • Y.J. Wang , R.P. Wang , X.R. Gao , B. Hong , S.K. Gao . A practical VEP-based brain–computer interface. IEEE Trans. Neural Syst. Rehabil. Eng. , 2 , 234 - 239
http://iet.metastore.ingenta.com/content/journals/10.1049/el.2010.0923
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Tapping the brain
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