Present stimuli randomly at different specific combinations of hposition&vposition


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justcheck1
justcheck1
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Posts: 2, Visits: 18
Hi

I would like to present a stimuli randomly at one of a series of specific  positions on the screen ("30,20", "50,20", "70,20", "20,50", "40,50","60,50", "80,50", "30,80", "50,80", "70,80")

I can randomly select horizontal AND veritcal positions

<picture whi1>
/ items = whites
/ size = (20%, 20%)
/ resetinterval = 1
/ hposition = counter.vertical.selectedvalue
/ vposition = counter.horizontal.selectedvalue
/ select = whitescounter
</picture>

<counter horizontal>
/ items = (30%, 50%, 70%, 20%, 40%,60%,80%,30%,50%,70%)
/ select = noreplace
/ selectionrate = always
</counter>

<counter vertical>
/items =(20%, 20%, 20%, 50%, 50%,50%,50%,80%,80%, 80%)
/ select = noreplace
/ selectionrate = always
</counter>

However, I want to present the stimuli randomly at one of 10 FIXED positions (combinations of vposition and hpositions) on the screen.

I tried the following which did not work:



<picture whi1>
/ items = whites
/ size = (20%, 20%)
/ resetinterval = 1
/position = counter.positions.selectedvalue
/ select = whitescounter
</picture>

<counter positions>
/ items = ("30,20", "50,20", "70,20", "20,50", "40,50","60,50", "80,50", "30,80", "50,80", "70,80")
/ select = sequence
/ selectionrate = always
</counter>

It would be really great to get help on this! Thanks in advance
Dave
Dave
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All you need to do is have the selection in the vertical counter depend on the selection in the horizontal counter.

<picture whi1>
/ items = whites
/ size = (20%, 20%)
/ resetinterval = 1
/ hposition = counter.horizontal.selectedvalue
/ vposition = counter.vertical.selectedvalue

/ select = whitescounter
</picture>

<counter horizontal>
/ items = (30%, 50%, 70%, 20%, 40%,60%,80%,30%,50%,70%)
/ select = noreplace
/ selectionrate = always
</counter>

<counter vertical>
/items =(20%, 20%, 20%, 50%, 50%,50%,50%,80%,80%, 80%)
/ select = current(horizontal)
/ selectionrate = always
</counter>

justcheck1
justcheck1
Partner Member (560 reputation)Partner Member (560 reputation)Partner Member (560 reputation)Partner Member (560 reputation)Partner Member (560 reputation)Partner Member (560 reputation)Partner Member (560 reputation)Partner Member (560 reputation)Partner Member (560 reputation)
Group: Forum Members
Posts: 2, Visits: 18
Oh, great! Thanks a lot! Everything seems possible in inquisit, gotta love it!
GO

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