[open] Manual trigger (e.g. by keypress) of an event (e.g. a cue)

fabia

Hi everybody,
I’m trying to design an experiment where I (as instructor) can determine when the next trial – the next sound cue – should start. Maybe with the “Run if” or “Break if” option?
The response device will probably be a joystick so the keyboard or the mouse would be available to set these “timeouts” if needed.

Thanks for your help!

Edwin

Welcome to the forum!

Considering your subjects' input device, you could simply add a keyboard_response (with no timeout) at the start of each trial, e.g. directly after a blank sketchpad (with a Duration set to 0). This pauses the experiment until a keypress is provided.

OpenSesame runs sequential, so there would be no need to implement conditionals with Run if or Brake if statements (unless something is continuously going on, and you would like to be able to actively insert the cue?).

Good luck!

EDIT: changed the thread's title from the very uninformative "timeouts" to something that reflects your question more accurately.

fabia

Hi Edwin!
Thanks very much for replying! ☺ The tests I’ll do are to get reaction times and my subjects will be monkeys (common marmosets ☺), I will only give them sound cues as auditory stimuli and the computer monitor (and keyboard) will actually be in front of me, so I provide no visual stimuli to them. And they will use the joystick to respond (hopefully, this is the plan :P). Is it possible then to add this keyboard_response in OS that I’ll give (as soon as the subjects are ready to respond and the bait is put on the right side) to pause the experiment before each trial until I provide the keypress?
And in some tests there will be two subjects acting cooperatively, is it possible to use two joysticks as response device (so that OS registers the reaction times for both joysticks separately), or is this complicated and demanding a lot of Python-coding? (because I unfortunately have no experience with Python programming yet..)
I’m only beginning to get to know OS, so sorry if I’m asking boring questions, but help is very appreciated !!!