Targeting an efficient target-to-target interval for P300 speller brain-computer interfaces.

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  • Author(s): Jin J;Jin J; Sellers EW; Wang X
  • Source:
    Medical & biological engineering & computing [Med Biol Eng Comput] 2012 Mar; Vol. 50 (3), pp. 289-96. Date of Electronic Publication: 2012 Feb 18.
  • Publication Type:
    Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't
  • Language:
    English
  • Additional Information
    • Source:
      Publisher: Springer Country of Publication: United States NLM ID: 7704869 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1741-0444 (Electronic) Linking ISSN: 01400118 NLM ISO Abbreviation: Med Biol Eng Comput Subsets: MEDLINE
    • Publication Information:
      Publication: New York, NY : Springer
      Original Publication: Stevenage, Eng., Peregrinus.
    • Subject Terms:
      User-Computer Interface*; Brain/*physiology ; Event-Related Potentials, P300/*physiology; Electroencephalography/methods ; Humans ; Signal Processing, Computer-Assisted
    • Abstract:
      Longer target-to-target intervals (TTI) produce greater P300 event-related potential amplitude, which can increase brain-computer interface (BCI) classification accuracy and decrease the number of flashes needed for accurate character classification. However, longer TTIs requires more time for each trial, which will decrease the information transfer rate of BCI. In this paper, a P300 BCI using a 7 × 12 matrix explored new flash patterns (16-, 18- and 21-flash pattern) with different TTIs to assess the effects of TTI on P300 BCI performance. The new flash patterns were designed to minimize TTI, decrease repetition blindness, and examine the temporal relationship between each flash of a given stimulus by placing a minimum of one (16-flash pattern), two (18-flash pattern), or three (21-flash pattern) non-target flashes between each target flashes. Online results showed that the 16-flash pattern yielded the lowest classification accuracy among the three patterns. The results also showed that the 18-flash pattern provides a significantly higher information transfer rate (ITR) than the 21-flash pattern; both patterns provide high ITR and high accuracy for all subjects.
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    • Grant Information:
      R21 DC010470 United States DC NIDCD NIH HHS; 1R15 DC011002-01 United States DC NIDCD NIH HHS; R33 DC010470 United States DC NIDCD NIH HHS; R01 EB000856 United States EB NIBIB NIH HHS; EB00856 United States EB NIBIB NIH HHS; 1R21 DC010470-01 United States DC NIDCD NIH HHS; R15 DC011002 United States DC NIDCD NIH HHS
    • Publication Date:
      Date Created: 20120222 Date Completed: 20120507 Latest Revision: 20230616
    • Publication Date:
      20230616
    • Accession Number:
      PMC3646326
    • Accession Number:
      10.1007/s11517-012-0868-x
    • Accession Number:
      22350331