Search found 5 matches

by zackbam
Thu Oct 25, 2012 12:29 pm
Forum: Scenarios and BCI design
Topic: [Error] <xDAWN Spatial filter> -Bad matrix size
Replies: 7
Views: 8407

Re: [Error] <xDAWN Spatial filter> -Bad matrix size

Indeed fabien! This step made me write up to 8/10 correct letters and 2/10 correct columns or rows. So Emotiv is a real EEG device, quite accurate for its price! And possibly a low cost communication way of person with Locked-in. So 18/20 correctly detected P300. Using LDA, 3 output Dawn filter and ...
by zackbam
Thu Oct 18, 2012 7:10 pm
Forum: Scenarios and BCI design
Topic: [Error] <xDAWN Spatial filter> -Bad matrix size
Replies: 7
Views: 8407

Re: [Error] <xDAWN Spatial filter> -Bad matrix size

In the best case, after following the same steps as chantrip, the best estimated accuracy I can achieve is 72,5%. And then in the online scenario I get 0/10 correct instances (sometimes correct column, not not much better than random!). chantrip, did you change anything else apart from increasing th...
by zackbam
Thu Oct 18, 2012 2:29 pm
Forum: Discussion about BCI and related topics
Topic: EEG hardware possibilities for research
Replies: 10
Views: 83943

Re: EEG hardware possibilities for research

Has anyone any experience with thisEEG amplifier? I just sent an email to the supplier asking for the price. It might be quite affordable...
by zackbam
Thu Oct 11, 2012 4:59 pm
Forum: Scenarios and BCI design
Topic: How to reproduce P300 Speller using Emotiv EPOC headset
Replies: 23
Views: 33113

Re: How to reproduce P300 Speller using Emotiv EPOC headset

Hello! I am using the p300-speller-xDAWN scenario, trying to get some P300 using Emotiv. The 10-fold validation accuracy estimation I get is between 66-72%. When I try the online scenario, in the best case I get 1/20 letters detected. Really poor performance (almost random). I tried increasing the r...
by zackbam
Fri Oct 05, 2012 12:57 am
Forum: Scenarios and BCI design
Topic: Connecting Emotiv to openViBE on Ubuntu 12.04
Replies: 8
Views: 12583

Re: Connecting Emotiv to openViBE on Ubuntu 12.04

Yes, accessing the raw data is now possible. And the ThestBench Interface is cool. When should we expect the acquisition server to support Emotiv in Linux? Now that the Research SDK is also installed in linux, this should be possible the same way it happens in windows (where it looks for edl.lib) So...