Hi there,<br><br>I have the following problem: I want to show a slide for 200 ms, allowing responses up to 1500 ms after slide onset. As I am doing an EEG experiment, constant slide presentation time is recommended which is why I set EndResponseAction to "None". Is it possible to send a trigger during the 200 ms interval, i.e. in case a participant pressed the button after 145 ms, there will be a marker in the EEG at that point in time? I only know the procedure of sending triggers with the onset (or offset) of a slide, e.g.<br><br>search.OnsetSignalEnabled = True<br>search.OnsetSignalPort = &HD030<br><br>But that doesn't help here since the trigger would obviously wait until the next slide comes no matter when I react in case I selected "None" for EndResponseAction.<br><br>Thanks,<br>Tobias<br>
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