Target Stimulus Presentation

[JasonBrock]

I am new to BCI2000 and am wondering is there a way to predefine target stimuli vs. non-target stimuli (images)? We have tried changing the matrix, but have figured out that is not what we need. What we need is to send a value to UDP collector for each type of image (say, a 1 for a target image and a 2 for a non-target). Does anyone know a solution to this.

[admin]

Hi,

You can access BCI2000 event markers (i.e., states) using the BCI2000 AppConnector protocol:

http://www.bci2000.org/wiki/index.php/T ... _Connector

You can define the target stimulus using the FocusOn parameter. BCI2000 will set the StimulusType parameter according to whether the currently presented stimulus is a target or non-target stimulus:

http://www.bci2000.org/wiki/index.php/U ... sk#FocusOn

I hope this helps.

Gerv