Generating feature weights works fine in my system as well.
The problem appears when I use the P300Classifier (trained with the files in "Classification.rar")
to test the "Matrix Task.rar" files. It is then that the Classifier crashes, and I'm using the
latest SVN version.
Search found 35 matches
- 12 Jan 2012, 09:15
- Forum: Known Issues
- Topic: P300 Classifier crashes
- Replies: 5
- Views: 5266
- 11 Jan 2012, 15:01
- Forum: Configuration
- Topic: Acquiring GSR signal in BCI2000
- Replies: 17
- Views: 14886
Re: Acquiring GSR signal in BCI2000
Thank you very much!
- 10 Jan 2012, 12:51
- Forum: Configuration
- Topic: Acquiring GSR signal in BCI2000
- Replies: 17
- Views: 14886
Re: Acquiring GSR signal in BCI2000
Hi mellinger and thank you for the reply, I took a look at the IIRFilterBase code and also the wiki for more information, and the Process() you are referring to, has no loop over channels, unless you were talking about a different .cpp file IIRFilterBase::Process( const GenericSignal& Input, Gen...
- 10 Jan 2012, 11:29
- Forum: Known Issues
- Topic: P300 Classifier crashes
- Replies: 5
- Views: 5266
Re: P300 Classifier crashes
No message from the Classifier. As soon as the "Overall Progress" bar starts filling, the P300Classifier freezes and I get a generic WindowsXP message that P300Classifier.exe has encountered a problem and it's going to close. Visual Studio Just-in-time Debugger says that "An unhandled...
- 10 Jan 2012, 06:33
- Forum: Software Development
- Topic: C# Programming
- Replies: 4
- Views: 4611
Re: C# Programming
Well, you could do some research regarding which brain potential you're going to use. P300, mu rhythm, SSVEP etc... In respect to your choice of potential, i'm pretty sure you can "map" certain gameplay functions. For example you can use SSVEP to control a "Space invades" game, s...
- 09 Jan 2012, 06:46
- Forum: Known Issues
- Topic: P300 Classifier crashes
- Replies: 5
- Views: 5266
P300 Classifier crashes
I'm encountering this problem whenever I try to load some test files in the classifier. I'm using 9 channels (8 for EEG and 1 for GSR) both for the training and the test files (TransmitChlist set to channels 1-8 that contain the EEG Signal) During the classifier training, the signal is filtered 0.1-...
- 23 Dec 2011, 09:42
- Forum: Configuration
- Topic: Acquiring GSR signal in BCI2000
- Replies: 17
- Views: 14886
Re: Acquiring GSR signal in BCI2000
Thanks mellinger for the reply, I was actually looking at the SourceFilter code, in my attempt to understand how it works, but I couldn't find any explicit information regarding specific channels. I looked on SourceFilter.cpp IIRFilterBase.cpp and FilterDesign.cpp The idea is to obtain RAW signal fr...
- 22 Dec 2011, 06:59
- Forum: Configuration
- Topic: Acquiring GSR signal in BCI2000
- Replies: 17
- Views: 14886
- 07 Dec 2011, 12:07
- Forum: Configuration
- Topic: Acquiring GSR signal in BCI2000
- Replies: 17
- Views: 14886
Re: Acquiring GSR signal in BCI2000
Another question I'd like to ask is how can I apply different filters to different channels of the gUSBamp amplifier. Since EEG signal needs a BP filter between 0.1-60Hz and GSR a LP filter with cutoff frequency at 1Hz, I was wondering if it is possible to apply a different filter for my EEG Signal ...
- 02 Dec 2011, 09:48
- Forum: Known Issues
- Topic: BCILauncher questions
- Replies: 1
- Views: 3605
BCILauncher questions
Hey, I'm having some issues on properly using BCI2000Launcher. I use it to load some .prm training files, for my p300 experiment, but i can't seem to be able to run them all. I press Launch and the operator module loads with my last .prm file and after the session is finished i don't know how to pro...
- 02 Dec 2011, 09:25
- Forum: Known Issues
- Topic: P300 Intensification won't work on Icons
- Replies: 1
- Views: 3154
P300 Intensification won't work on Icons
Hey, I just wanted to point out that in the latest version of BCI2000 (October 2011)
if icons are used in the p300 speller, then they won't intensify.
Letters/charactes on the other hand seem to work fine.
if icons are used in the p300 speller, then they won't intensify.
Letters/charactes on the other hand seem to work fine.
- 29 Nov 2011, 10:24
- Forum: Configuration
- Topic: Acquiring GSR signal in BCI2000
- Replies: 17
- Views: 14886
Re: Acquiring GSR signal in BCI2000
I'm returning to this topic because I have some questions regarding the CommonReference and CommonGround values in the source tab. I'm using g.USBamp to acquire EEG signal (8 active electrodes + GND + REF) through GAMMAbox (GAMMAbox outputs are connected only to the first two blocks of the g.USBamp)...
- 21 Nov 2011, 05:43
- Forum: Configuration
- Topic: Acquiring GSR signal in BCI2000
- Replies: 17
- Views: 14886
Re: Acquiring GSR signal in BCI2000
So if I'm not mistakes when I use float32 instead of int16 I can fill in the SourceChGain with "1" and no conversion will take place according to this formula: http://www.bci2000.org/wiki/images/math/e/2/2/e2211c94e40182a0e24012b7861eb562.png stored samples are gonna be identical to the ac...
- 17 Nov 2011, 11:54
- Forum: Configuration
- Topic: Acquiring GSR signal in BCI2000
- Replies: 17
- Views: 14886
Re: Acquiring GSR signal in BCI2000
I'm using g.USBamp and g.GSRsensor in a speller experiment. Both signals from the (8) active EEG electrodes AND the g.GSRsensor go through the g.USBamp amplifier. System: WIN XP SP3, BCI2000 3.0.2 I'm having a hard time with the Source settings I believe I've set up everything correctly (I'm posting...
- 16 Nov 2011, 13:18
- Forum: Known Issues
- Topic: Application takes to long to confirm new parameters
- Replies: 1
- Views: 3252
Application takes to long to confirm new parameters
I've been recently experiencing problems with BCI2000 ver 3.0.3 I'm using g.tec g.USBamp equipment, on a Windows XP SP3 PC, with the latest drivers for Nvidia FX 5500. for a P300 speller application experiment The issue is that when I hit the "Set Config" button it take a lot of time since...