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The mental prosthesis: assessing the speed of a P300-based brain-computer interface

Donchin, E., Spencer, K.M., Wijesinghe, R.·2000·IEEE Transactions on Rehabilitation Engineering

Abstract

We describe a study designed to assess a brain-computer interface (BCI), originally described by Farwell and Donchin [9] in 1988. The system utilizes the fact that the rare events in the oddball paradigm elicit the P300 component of the event-related potential (ERP). The BCI presents the user with a matrix of 6 by 6 cells, each containing one letter of the alphabet. The user focuses attention on the cell containing the letter to be communicated while the rows and the columns of the matrix are intensified. Each intensification is an event in the oddball sequence, the row and the column containing the attended cell are "rare" items and, therefore, only these events elicit a P300. The computer thus detects the transmitted character by determining which row and which column elicited the P300. We report an assessment, using a boot-strapping approach, which indicates that an off line version of the system can communicate at the rate of 7.8 characters a minute and achieve 80% accuracy. The system's performance in real time was also assessed. Our data indicate that a P300-based BCI is feasible and practical. However, these conclusions are based on tests using healthy individuals.

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Research works printed but not linked: 8

  1. 10.1016/B978-0-12-155150-6.50019-5 · DOI · Paper page
  2. sutton, 1965, evoked-potential correlates of stimulus uncertainty, Science, 150, 1187, 10.1126/science.150.3700.1187 · DOI · Paper page
  3. 10.1007/978-1-4899-4541-9 · DOI · Paper page
  4. bauby, 1997, The Diving Bell and the Butterfly, 132
  5. fabiani, 1987, definition, identification, and reliability of the p300 component of the event-related brain potential, Advances in Psychophysiology, 2
  6. wolpaw, 1997, timing of eeg-based cursor control, J Clin Neurophysiol, 14, 529, 10.1097/00004691-199711000-00010 · DOI
  7. 10.1016/0013-4694(88)90149-6 · DOI · Paper page
  8. 10.1109/86.547945 · DOI · Paper page

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Metadata

Authors
Donchin, E., Spencer, K. M., & Wijesinghe, R.
Venue
IEEE Transactions on Rehabilitation Engineering
Published
2000-06
Volume
8
Issue
2
Pages
174-179
ISSN
1063-6528 (ISSN-L)
OpenAlex
W2168689324
Cited by
1,222
References
4
FWCI
6.23
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: The mental prosthesis: assessing the speed of a P300-based brain-computer interface. https://app.cochat.ai/papers/10.1109/86.847808
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Donchin, E., Spencer, K. M., & Wijesinghe, R. (2000). The mental prosthesis: assessing the speed of a P300-based brain-computer interface. IEEE Transactions on Rehabilitation Engineering. https://doi.org/10.1109/86.847808

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