[solved] Trigger

Federica

Dear Sebastian,

I'm working on my experiment in which I will show the visual stimuli towards subjects have to reach; I want to use the motion tracker to have kinematics information. I need to send a signal to the parallel port in order to synchronise
OpenSesame with motion tracker program.

I read this issue about "Sending triggers via the parallel port for EEG/ ERP studies" in OpenSesame
(http://osdoc.cogsci.nl/miscellaneous/sending-triggers-eegerp)
Could I use that for my purpose?

About the [Step 3: Send a trigger], I inserted the inline_script in my sequence exactly after the point in which I need the trigger (basically the schetckpad for the presentation of stimulus)... is it correct?

Thank you,

Federica

sebastiaan

Hi Frederica,

Yes, it sounds like you got it all under control. If you insert the trigger script after the sketchpad (which is fine), make sure that the sketchpad has a duration of 0. Otherwise it will pause before sending the trigger.

Good luck!

Cheers,
Sebastiaan