OpenViBE forum

The OpenViBE community
It is currently Thu Dec 12, 2019 8:48 am

All times are UTC




Post new topic Reply to topic  [ 3 posts ] 
Author Message
PostPosted: Thu Nov 21, 2019 4:43 pm 
Offline

Joined: Tue Nov 12, 2019 7:45 pm
Posts: 2
Hello,

I am currently designing my lab's first neurofeedback training protocol, and require some assistance.
We want to use visual feedback in the form of a colored square that changes saturation based on a person's relative alpha power increase.
We have a Biosemi Active Two system, which is compatible with openvibe.
I can program at a beginner to intermediate level in Matlab, but am having a very hard time understanding how to implement the matlab scripting boxes to design my stimulation.
I was wondering if anyone could help me with this? I use Matlab r2015b

I would greatly appreciate the help,
Sonia

svarma6@uwo.ca


Top
 Profile  
Reply with quote  
PostPosted: Fri Nov 22, 2019 9:28 am 
Offline

Joined: Wed Oct 31, 2018 9:14 am
Posts: 124
Hi sonia,
So first you do not need Matlab.^^
Moreover, for real time, matlab is not the fastest language.
What I advise you is first to recover your signal and recover your Alpha (with a channel selection and a temporal filter). Then display the signal.
For your Neurofeedback protocol, you could use Python to create a script that will decide which color to display and use OpenCV to display your color square. Almost 2 years ago I made a Neurofeedback protocol but I mostly coded new boxes for that (and the code is not optimized I just started in OpenViBE ^^).
Here is a git. https://github.com/tmonseigne/NEUROPERF
And the associated article if it can help you https://hal.inria.fr/hal-02130755
Thibaut


Top
 Profile  
Reply with quote  
PostPosted: Fri Nov 22, 2019 3:04 pm 
Offline

Joined: Tue Nov 12, 2019 7:45 pm
Posts: 2
Thank you for your help
I will try this and post back the result
:)
Sonia


Top
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 3 posts ] 

All times are UTC


Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group
Americanized by Maƫl Soucaze.