Create a tag set for your stimulus list items; then, within the respective trial’s rules, depending on which tag is set - i.e. which list item was presented - you can present a certain digital output event.
I have created three different kinds of tags (Pre-Switch, On Switch, Post-switch) and have tagged them to the matching ones in each stimulus list.
However, the tags keep changing (ex. I have set three post-switches but when I close the setting window, it changes to four post-switches automatically)
So sometimes, four digital outputs pops out and I cannot figure out the reason.
That is my first problem with the experiment.
The second problem is digital outputs don’t show up when it is supposed to.
The digital output comes out one event earlier than it is supposed to be.
I would like to get help on this one as it is important/urgent to me. Thanks in advance!
Before we continue exploring tag sets as a solution, please look at the attached experiment. I have moved your digital output events to the top of the event section and linked them to your trials before the presentation of your stimuli.
As far as I understand your experiment, this method works. Take a look at it; if it doesn’t satisfy your requirements, please explain why.
I am sorry for my poor explanation. Unfortunately it didn’t solve my problem.
To put it very simple, I want two kinds of digital outputs to be set on time.
Digital Output A and Digital Output B.
so for every first three numbers between changes, I want to set digital output A
for every last three numbers between changes, I want digital output B to come out.
A-A-A-x-x-B-B-B-“change”-A-A-A-x-x-x-x-x-B-B-B-“change” and so on.
I have done tagging stimulus lists with digital outputs and setting rules in trial windows, However, the digital output doesn’t come out at the right time (I have tried moving digital outputs to upwards as you told me)
So basically the digital output A starts at the “second” A not the first!
Please help me out on this one and remind me how it is done!
Thank you for clarifying. I have adjusted your experiment appropriately. See the attachment.
In each list, I’ve tagged the first two items as post and the three items before the last as pre. Change trials should be presenting post rather than change digital outputs; you can see that tags are not necessary to send change digital output because you can do so using the standard linking method.
A workaround can be to create another tag for the Pre or Post set called “none”. Rather than cancelling the tag, select “none”. This should suffice because your rules only respond to the “pre” and “post” tags.
I am having a problem with my digital outputs again in this paradigm. What is different from last time is that four different kinds of ISI types were added to the rules. and I am assuming that this rule change has caused the delay in the digital outputs.
I have set my digital output as told. and it doesn’t work right.
How do I solve this?
Look at the order of your rules. Currently, you are sending the digital output for the next event before you present the ISI. Are you sure you don’t want the reverse order?
If this isn’t the case, I will need more information about how the digital outputs aren’t working right.