Search found 14 matches

by bcip3
23 Nov 2011, 08:26
Forum: BCI Systems - User Applications
Topic: P3Speller - 2nd Matrix Text
Replies: 9
Views: 3733

Re: P3Speller - 2nd Matrix Text

Hello Juergen, Thanks for your prompt response. I don't understand very well how to proceed. I had tried the following code in method P3Speller::OnClassResult( const ClassResult& inResult ): int singleRow = targetID ? ( targetID - 1 ) / mNumMatrixCols + 1 : 0; Associations()[singleRow].Present(); in...
by bcip3
22 Nov 2011, 07:23
Forum: BCI Systems - User Applications
Topic: NIDAQ_mx_Source and P3Speller - Menu
Replies: 2
Views: 2098

Re: NIDAQ_mx_Source and P3Speller - Menu

Hello Juergen,

I have updated to the last source code and compiled it. It works fine now.

Thanks.
by bcip3
21 Nov 2011, 14:32
Forum: BCI Systems - User Applications
Topic: P3Speller - 2nd Matrix Text
Replies: 9
Views: 3733

Re: P3Speller - 2nd Matrix Text

Hi Juergen, I had a look at the code and found the methods Present() and Conceal() to start and finish the stimuli, but it is for the whole row or column. I was wondering about flashing only one cell of the matrix, could it be done in an easy way? I was thinking about adding this new code at the P3S...
by bcip3
17 Nov 2011, 13:31
Forum: BCI Systems - User Applications
Topic: NIDAQ_mx_Source and P3Speller - Menu
Replies: 2
Views: 2098

NIDAQ_mx_Source and P3Speller - Menu

Hello, I getting problems to run the example of two menus (P3Speller_Menus.prm). When the matrixes change, the flickers appear in a very fast way till the application is stable. It seems the system is reading the input signal while the matrix is chargering and it starts to flicker once it appears (i...
by bcip3
17 Nov 2011, 13:11
Forum: BCI Systems - User Applications
Topic: P3Speller - 2nd Matrix Text
Replies: 9
Views: 3733

Re: P3Speller - 2nd Matrix Text

Hi Juergen, Thanks for your answer. You are right, I change the Parameters in Matlab and I am interesting in charge these new parameters in the application again. I did everything in the correct order but it didn't work. I have been investigating how to update the Parameters in the correct way and f...
by bcip3
08 Nov 2011, 06:37
Forum: BCI Systems - User Applications
Topic: P3Speller - 2nd Matrix Text
Replies: 9
Views: 3733

Re: P3Speller - 2nd Matrix Text

Hello Juergen, Thanks for your response, I didn't express myself very well. I have the original 6x6 matrix. When an element is selected, a new 4x4 matrix is opened (like the example P3Speller_Menus.prm) but instead of using icons, I want to modify the new elements of this new matrix each time this m...
by bcip3
07 Nov 2011, 09:14
Forum: BCI Systems - User Applications
Topic: P3Speller - 2nd Matrix Text
Replies: 9
Views: 3733

P3Speller - 2nd Matrix Text

Hi, I have created a second matrix in the P3Speller application. I want to change the letters (in my case, words) from the 2nd matrix each time this matrix is selected. I have procedured following these steps: 1) Reading PARAMETERS --> ParamsToMatlabWS() 2) Modifing the value of bci_Paremeters.Targe...
by bcip3
07 Nov 2011, 07:52
Forum: Configuration
Topic: Advisable monitor for P3Speller
Replies: 2
Views: 1968

Re: Advisable monitor for P3Speller

Thanks a lot Juergen.

I will follow your advise.

Regards
by bcip3
03 Nov 2011, 08:40
Forum: BCI Systems - Brain Signals
Topic: Two sources at the same time
Replies: 4
Views: 3942

Re: Two sources at the same time

Hi Schalk,

Thanks for the details. We have decided to purchase a new digital amplifier with 32 channels, therefore, the idea of increasing the functionability of NIDAQ source module is stopped.

KR.
by bcip3
03 Nov 2011, 08:22
Forum: Configuration
Topic: Advisable monitor for P3Speller
Replies: 2
Views: 1968

Advisable monitor for P3Speller

Hello, I am currently working with the P300 Speller and I was wondering which is the best monitor, at least, which monitors (CRT, LCD, LED) are not suitable for the experiments. I know it depends on the refresh rate, we have several CRT monitors at 60 Hz and LCD at 60 Hz as well. Do they work for th...
by bcip3
14 Oct 2011, 04:18
Forum: Known Issues
Topic: error - NIDAQ_mx_Source.exe
Replies: 3
Views: 2761

Re: error - NIDAQ_mx_Source.exe

Hi Juergen, Thanks for your help one more time. The first issue, it is already fixed following your instructions: " Commenting the files from the NIDAQ-Logging subdirectory from the CMakeList.txt, running CMake and recompiling the source module ". About my second question, I have included the Matlab...
by bcip3
13 Oct 2011, 04:23
Forum: BCI Systems - Brain Signals
Topic: Two sources at the same time
Replies: 4
Views: 3942

Re: Two sources at the same time

Hi Juergen,

Thanks for your response. I will have a look to it in order to update NIDAQ source module functionality. We are thinking in purchasing a new NI board with 32 channels for future experiments.

KR
by bcip3
11 Oct 2011, 08:02
Forum: BCI Systems - Brain Signals
Topic: Two sources at the same time
Replies: 4
Views: 3942

Two sources at the same time

Hello,

I am interested in using two amplifiers at the same time (EEG signals from two different cards provided by the same subject) because they only have 16 channels and I would need 32 channels. Would it be possible?

Signal source: NIDAQ_mx_Source.exe

Thanks in advance.
by bcip3
07 Oct 2011, 08:28
Forum: Known Issues
Topic: error - NIDAQ_mx_Source.exe
Replies: 3
Views: 2761

error - NIDAQ_mx_Source.exe

Hello, I am working with a National Instruments device, using NIDAQ_mx_Source.exe as a Signal Source. When I press on QUIT or SUSPEND, the tipical Windows XP error appears: NIDAQ_mx_Source.exe has detected a problem and must be closed. By the way, I would like to know if it is possible to create a c...