Jittered Fixation Cross
in OpenSesame
Hi everybody,
I am building an EEG experiment, and I would like to set my fixation cross with a jittered duration between 550 and 850 ms.
Could anyone tell me how to do that?
Thanks in advance
Comments
Hi @MicolG,
The simplest way would be to set the duration of your fixation cross to 0ms and insert an advanced_delay object right after the sketchpad where your cross is displayed, and set the values to what you need (you can even select one of two possible distributions for the jitter):
Otherwise, if you require something more complex, you could always use code (in Python or Javascript) to program the duration of the sketchpad with the cross.
Hope this helps!
Fabrice.
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