Millisecond Forums » Millisecond Forums » Inquisit 4 » use of values for responsekey and position of stimuli

use of values for responsekey and position of stimuli

juju — Wed, 20 Mar 2019 10:19:02 GMT

Hi,

I am trying to manipulate, at the level of the block, the position of background stimuli and define correct response depending on the condition in which the subject is.
But I am stuck because it seems as if the values cannot be set at the beginning of the experiment.
I tried two solutions without success (attached - I shorten the experiment to focus on the problem).
Could someone tell me what I am doing wrong?

RE: use of values for responsekey and position of stimuli

juju — Wed, 20 Mar 2019 10:19:02 GMT

[quote]

[b]Dave - Wednesday, March 20, 2019[/b]

[quote]

[b]juju - Wednesday, March 20, 2019[/b]

[quote]

[b]Dave - Wednesday, March 20, 2019[/b]

[quote]

[b]juju - Wednesday, March 20, 2019[/b]

[/quote]

The <variables> element is the wrong syntax construct to use. To set values at the start of an <expt>, use /onexptbegin attributes like so:

<expt>
/ onexptbegin = [values.cond = 1;]
/subjects = (1 of 4)
/ blocks = [1=prepare;2=familiar1; 3=familiar2]
</expt>

<expt>
/ onexptbegin = [values.cond = 1;]
/subjects = (2 of 4)
/ blocks = [1=prepare;2=familiar1; 3=familiar2]
</expt>

<expt>
/ onexptbegin = [values.cond = 2;]
/subjects = (3 of 4)
/ blocks = [1=prepare;2=familiar1; 3=familiar2]
</expt>

<expt>
/ onexptbegin = [values.cond = 2;]
/subjects = (4 of 4)
/ blocks = [1=prepare;2=familiar1; 3=familiar2]
</expt>

[/quote]

ok thanks - I tried before but it did not work - hope this time it will.

[quote]

[b]juju - Wednesday, March 20, 2019[/b]

[quote]

[b]Dave - Wednesday, March 20, 2019[/b]

[quote]

[b]juju - Wednesday, March 20, 2019[/b]

[/quote]

ok thanks - I tried before but it did not work - hope this time it will.

[/quote]

Maybe there is some subtle thing I did not get but it still does not work -
I used
<expt>
/onexptbegin = [values.cond=1]
/subjects = (1 of 4)
<expt>

and then

<block prepare>
/trials = [1=setvalue]
/onblockend = [if (values.cond==1) values.keyiat =1;values.keyfamsr=1;values.order=1;values.pair=1;values.pairfamsr=1]
/onblockend = [if (values.cond==2) values.keyiat =2;values.keyfamsr=2;values.order=2;values.pair=2;values.pairfamsr=2]
</block>

and

<block familiar1>
/ bgstim = (instr_F, instr_J, TARG1_l, TARG2_l)
/ trials = [1= inst_induc1; 2-21=random(SAT_TARG1, SAT_TARG2)]
/onblockbegin = [if (values.keyfamsr == 1) text.TARG1_l.hposition = "20%";text.TARG2_l.hposition = "80%"]
/onblockbegin = [if (values.keyfamsr == 1) values.srsidetarg1 = 2; values.srsidetarg2 = 1]
/onblockbegin = [if (values.keyfamsr == 2) text.TARG1_l.hposition = "80%";text.TARG2_l.hposition = "20%"]
/onblockbegin = [if (values.keyfamsr == 2) values.srsidetarg1 = 1; values.srsidetarg2 = 2]
/onblockbegin = [values.block = 1]
/onblockbegin = [values.numitem = 10]
/onblockbegin = [if(values.blockf == 1)text.compito1.textcolor=white]
/onblockbegin = [if(values.blockf == 1)text.compito2.textcolor=white]
/onblockbegin = [if(values.blockf == 1)text.compito3.textcolor=white]
/errormessage = true(error,200)
/onblockend = [values.block = 0]
/onblockend = [values.blockf = values.blockf + 1]
/onblockend = [if(values.order == 1)values.pairfamsr==2]
/onblockend = [if(values.order == 2)values.pairfamsr==1]
</block>

but whatever the number of cond (1 or 2) does not change the position of the background stimulus

Thanks in advance

[/quote]

There are some syntax issues with your code (none of which have anything to do with the values set /onexptbegin, by the way). First, whenever you wish to execute multiple actions under a single condition, you ought to use curly braces. I.e.

<block prepare>
/trials = [1=setvalue]
/onblockend = [if (values.cond==1) values.keyiat =1; values.keyfamsr=1;values.order=1;values.pair=1;values.pairfamsr=1]
/onblockend = [if (values.cond==2) values.keyiat =2; values.keyfamsr=2;values.order=2;values.pair=2;values.pairfamsr=2]
</block>

is wrong. Only the the two bolded statements are conditional, the rest is unconditional. To work properly, this ought to read:

<block prepare>
/trials = [1=setvalue]
/onblockend = [if (values.cond==1) {values.keyiat =1;values.keyfamsr=1;values.order=1;values.pair=1;values.pairfamsr=1}]
/onblockend = [if (values.cond==2) {values.keyiat =2;values.keyfamsr=2;values.order=2;values.pair=2;values.pairfamsr=2}]
</block>

Virtually all /onblockbegin statements throughout the script suffer from that mistake. I've fixed that in the attached script.

[/quote]

Thank you very much for your help!

RE: use of values for responsekey and position of stimuli

Dave — Wed, 20 Mar 2019 09:30:31 GMT

[quote]

[b]juju - Wednesday, March 20, 2019[/b]

[quote]

[b]Dave - Wednesday, March 20, 2019[/b]

[quote]

[b]juju - Wednesday, March 20, 2019[/b]

[/quote]

ok thanks - I tried before but it did not work - hope this time it will.

[quote]

[b]juju - Wednesday, March 20, 2019[/b]

[quote]

[b]Dave - Wednesday, March 20, 2019[/b]

[quote]

[b]juju - Wednesday, March 20, 2019[/b]

[/quote]

ok thanks - I tried before but it did not work - hope this time it will.

[/quote]

RE: use of values for responsekey and position of stimuli

juju — Wed, 20 Mar 2019 07:57:50 GMT

[quote]

[b]Dave - Wednesday, March 20, 2019[/b]

[quote]

[b]juju - Wednesday, March 20, 2019[/b]

[/quote]

ok thanks - I tried before but it did not work - hope this time it will.

[quote]

[b]juju - Wednesday, March 20, 2019[/b]

[quote]

[b]Dave - Wednesday, March 20, 2019[/b]

[quote]

[b]juju - Wednesday, March 20, 2019[/b]

[/quote]

ok thanks - I tried before but it did not work - hope this time it will.

[/quote]

RE: use of values for responsekey and position of stimuli

juju — Wed, 20 Mar 2019 06:39:50 GMT

[quote]

[b]Dave - Wednesday, March 20, 2019[/b]

[quote]

[b]juju - Wednesday, March 20, 2019[/b]

[/quote]

ok thanks - I tried before but it did not work - hope this time it will.

RE: use of values for responsekey and position of stimuli

Dave — Wed, 20 Mar 2019 06:37:54 GMT

[quote]

[b]juju - Wednesday, March 20, 2019[/b]

[/quote]