Targeting an efficient target-to-target interval for P300 speller brain-computer interfaces.
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...
| Publicado en: | Medical & Biological Engineering & Computing Vol. 50; no. 3; pp. 289 - 297 |
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| Autores principales: | , , , , , |
| Formato: | research Journal Article |
| Publicado: |
Springer Nature
Mar2012
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=104534771&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 104534771 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 01400118 PO0 jtl: Medical & Biological Engineering & Computing issn: 01400118 maglogo: N pubinfo: dt: Mar2012 vid: 50 iid: 3 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 104534771 NLM22350331 2011490738 10.1007/s11517-012-0868-x NLM22350331 PMC3646326 104534771 ppf: 289 ppct: 8 formats: fmt: @attributes: type: P tig: atl: Targeting an efficient target-to-target interval for P300 speller brain-computer interfaces. aug: au: Jin J Sellers EW Wang X Jin, Jing Sellers, Eric W Wang, Xingyu affil: Key Laboratory of Advanced Control and Optimization for Chemical Processes, Ministry of Education, East China University of Science and Technology, Shanghai 200237, People's Republic of China sug: subj: Brain Physiology Brain-Computer Interfaces Evoked Potentials Physiology Electroencephalography Methods Signal Processing, Computer Assisted ab: 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. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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