Millisecond Forums » Millisecond Forums » Inquisit 4 » count mouse clicking

count mouse clicking

luhe — Tue, 30 Oct 2018 03:41:34 GMT

Dear Inquisit community,

Is there a way to obtain the amount of mouse clicks that the subject has made per trial?
I'm using a reaction time task and want to give a warning in case participants click the mouse permanently to be as quick as possible once the target stimulus is presented.

Thanks in advance!
Best regards,
Lu

luhe — Tue, 30 Oct 2018 03:41:34 GMT

[quote]

[b]Dave - Wednesday, October 24, 2018[/b]

[quote]

[b]luhe - Wednesday, October 24, 2018[/b]

[/quote]

You can theoretically count the clicks per a bit of /isvalidresponse logic. Basically something like this:

<values>
/ pretargetclicks = 0
</values>

<block myblock>
/ trials = [1-4 = mytrial]
</block>

<trial mytrial>
/ ontrialbegin = [values.pretargetclicks=0]
/ stimulustimes = [0=fixation; 3000=target]
/ inputdevice = mouse
/ validresponse = (lbuttondown)
/ isvalidresponse = [if(trial.mytrial.response == "lbuttondown" && trial.mytrial.latency <= 3000) {values.pretargetclicks+=1; false} else true]
/ beginresponsetime = 0
/ branch = [if (values.pretargetclicks > 0) trial.warning]
</trial>

<trial warning>
/ stimulusframes = [1=warningmsg]
/ validresponse = (0)
/ trialduration = 2000
</trial>

<text fixation>
/ items = ("+")
</text>

<text target>
/ items = ("A", "B", "C", "D")
</text>

<text warningmsg>
/ items = ("You clicked <%values.pretargetclicks%> times before the target appeared. Please don't do this.")
/ txcolor = red
</text>

[/quote]

Hi Dave,

Thank you very much for your quick response!

Cheers,
Lutz

RE: count mouse clicking

Dave — Wed, 24 Oct 2018 09:30:40 GMT

[quote]

[b]luhe - Wednesday, October 24, 2018[/b]

[/quote]