Ideal Interface Specifications for Invoking P300?

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K Mak
Posts: 1
Joined: 02 Nov 2009, 09:02

Ideal Interface Specifications for Invoking P300?

Post by K Mak » 02 Nov 2009, 09:06


I am currently working with a team to develop an environmental control interface using BCI2000 for the P300 wave, but are only in the initial conceptual design phase. We were hoping to gain some knowledge of ideal or standardized P300 speller interface specifications.

After consulting some sources, it was determined that a 3x3 or 4x4 matrix was ideal for our interface. However, we wish to know if there is an ideal size for the icons on the screen, or how much of the screen the matrix should take up with regards to the display area as a whole. In addition, we would also like to know if there is a standardized interval between the screen flashes and how long each row or column is lit up for.

Any assistance regarding this matter would be greatly appreciated.

Posts: 615
Joined: 28 Jan 2003, 12:37


Post by gschalk » 05 Nov 2009, 08:35


There have not been too many efforts to optimize P300 stimulation parameters. I suggest you check out what has been done:

The Wadsworth BCI research and development program: at home with BCI
… , DJ Krusienski, EW Sellers, JR Wolpaw - IEEE Transactions on Neural Systems and …, 2006 -

A P300 event-related potential brain–computer interface (BCI): The effects of matrix size and … - ► [PDF]
EW Sellers, DJ Krusienski, DJ McFarland, … - Biological psychology, 2006 - Elsevier

A comparison of classification techniques for the P300 speller - ► [PDF] - Dickerman Library Link
… Cabestaing, DJVTM Mcfarland, JR Wolpaw - Journal of neural engineering, 2006 -

A P300-based brain–computer interface for people with amyotrophic lateral sclerosis - ► [PDF] - Dickerman Library Link
F Nijboer, EW Sellers, J Mellinger, MA … - Clinical Neurophysiology, 2008 - Elsevier

Toward enhanced P300 speller performance - ►
DJ Krusienski, EW Sellers, DJ McFarland, … - Journal of neuroscience methods, 2008 - Elsevier

A P300-based brain–computer interface: initial tests by ALS patients - ► [PDF] - Dickerman Library Link
EW Sellers, E Donchin - Clinical Neurophysiology, 2006 - Elsevier

I hope this helps.



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