Millisecond Forums » Millisecond Forums » Inquisit 5 » sequence of stimuli type within a trial

sequence of stimuli type within a trial

nrouhani — Thu, 14 Sep 2017 15:04:49 GMT

hello!

in my current experiment, I am trying to sample two types of stimuli throughout the block. The trial itself is split up into three phases, where I need one type of trial-unique picture (e.g. indoor or outdoor pictures) to appear during the cue and outcome portion of the trial. Right now, I just have "stim1" at cue and "stim2" at outcome, but I want these items to both be an indoor or outdoor picture given a sequence. Previously, in javascript, I had a set sequence where an indoor picture would be sampled if the randomized array was a 1 (versus a 0) at trial. Ideally, I would want indoor and outdoor pictures to be sampled randomly, without allowing the same type of stimulus to appear in more than two trials in a row. Additionally, I want to set a particular type of reward stimulus (highVal or lowVal at outcome) given the type of stimulus picture sampled at trial.

thank you so much in advance!

*************************************************
Creating Stimuli
*************************************************

<picture stim1>
/ items = stim1_Outdoor *I want this to be either indoor or outdoor
/ size = (30%, 30%)
/ select = values.stim1
</picture>

<picture stim2>
/ items = stim2_Outdoor *I want this to be either indoor or outdoor (same type as stim1)
/ size = (30%, 30%)
/ select = values.stim2
</picture>

<picture oldStim1>
/ items = stim1_Outdoor
/ size = (40%, 40%)
/ select = values.oldStim1
</picture>

<picture highVal> *this is contingent on whether it's an indoor or outdoor picture
/ items = highValue
/ size = (13%, 13%)
/ resetinterval = 0
/ vposition = 30
/ hposition = 50
</picture>

<picture lowVal> *this is contingent on whether it's an indoor or outdoor picture
/ items = lowValue
/ size = (10%, 10%)
/ resetinterval = 0
</picture>

<defaults>
/ screencolor = (175, 175, 175)
/ txcolor = darkgrey
</defaults>

<shape blank>
/ color = (175, 175, 175)
/ shape = rectangle
/ size = (100%, 100%)
</shape>

<text estimateQ>
/ items = ("please estimate the value of this type of scene ~n(indoor or outdoor) from 1 to 100")
/ hjustify = center
/ size = (50%,50%)
/ fontstyle = ("Arial",30)
/ vposition = (60)
/ hposition = (50)
/ txbgcolor = (transparent)
/ txcolor = aliceblue
/ erase = false
</text>

<item stim1_Outdoor>
/1 = "outdoorPics/Outdoor_1.jpg"
/2 = "outdoorPics/Outdoor_2.jpg"
/3 = "outdoorPics/Outdoor_3.jpg"
/4 = "outdoorPics/Outdoor_4.jpg"
/5 = "outdoorPics/Outdoor_5.jpg"
/6 = "outdoorPics/Outdoor_6.jpg"
/7 = "outdoorPics/Outdoor_7.jpg"
/8 = "outdoorPics/Outdoor_8.jpg"
/9 = "outdoorPics/Outdoor_9.jpg"
/10 = "outdoorPics/Outdoor_10.jpg"
/11 = "outdoorPics/Outdoor_11.jpg"
/12 = "outdoorPics/Outdoor_12.jpg"
/13 = "outdoorPics/Outdoor_13.jpg"
/14 = "outdoorPics/Outdoor_14.jpg"
/15 = "outdoorPics/Outdoor_15.jpg"
/16 = "outdoorPics/Outdoor_16.jpg"
/17 = "outdoorPics/Outdoor_17.jpg"
/18 = "outdoorPics/Outdoor_18.jpg"
/19 = "outdoorPics/Outdoor_19.jpg"
/20 = "outdoorPics/Outdoor_20.jpg"
/21 = "outdoorPics/Outdoor_21.jpg"
/22 = "outdoorPics/Outdoor_22.jpg"
/23 = "outdoorPics/Outdoor_23.jpg"
/24 = "outdoorPics/Outdoor_24.jpg"
/25 = "outdoorPics/Outdoor_25.jpg"
/26 = "outdoorPics/Outdoor_26.jpg"
</item>

<item stim2_Outdoor>
/1 = "outdoorPics/Outdoor_27.jpg"
/2 = "outdoorPics/Outdoor_28.jpg"
/3 = "outdoorPics/Outdoor_29.jpg"
/4 = "outdoorPics/Outdoor_30.jpg"
/5 = "outdoorPics/Outdoor_31.jpg"
/6 = "outdoorPics/Outdoor_32.jpg"
/7 = "outdoorPics/Outdoor_33.jpg"
/8 = "outdoorPics/Outdoor_34.jpg"
/9 = "outdoorPics/Outdoor_35.jpg"
/10 = "outdoorPics/Outdoor_36.jpg"
/11 = "outdoorPics/Outdoor_37.jpg"
/12 = "outdoorPics/Outdoor_38.jpg"
/13 = "outdoorPics/Outdoor_39.jpg"
/14 = "outdoorPics/Outdoor_40.jpg"
/15 = "outdoorPics/Outdoor_41.jpg"
/16 = "outdoorPics/Outdoor_42.jpg"
/17 = "outdoorPics/Outdoor_43.jpg"
/18 = "outdoorPics/Outdoor_44.jpg"
/19 = "outdoorPics/Outdoor_45.jpg"
/20 = "outdoorPics/Outdoor_46.jpg"
/21 = "outdoorPics/Outdoor_47.jpg"
/22 = "outdoorPics/Outdoor_48.jpg"
/23 = "outdoorPics/Outdoor_49.jpg"
/24 = "outdoorPics/Outdoor_50.jpg"
/25 = "outdoorPics/Outdoor_51.jpg"
/26 = "outdoorPics/Outdoor_53.jpg"
</item>

<item stim1_Indoor>
/1 = "indoorPics/Indoor_1.jpg"
/2 = "indoorPics/Indoor_2.jpg"
/3 = "indoorPics/Indoor_3.jpg"
/4 = "indoorPics/Indoor_4.jpg"
/5 = "indoorPics/Indoor_5.jpg"
/6 = "indoorPics/Indoor_6.jpg"
/7 = "indoorPics/Indoor_7.jpg"
/8 = "indoorPics/Indoor_8.jpg"
/9 = "indoorPics/Indoor_9.jpg"
/10 = "indoorPics/Indoor_10.jpg"
/11 = "indoorPics/Indoor_11.jpg"
/12 = "indoorPics/Indoor_12.jpg"
/13 = "indoorPics/Indoor_13.jpg"
/14 = "indoorPics/Indoor_14.jpg"
/15 = "indoorPics/Indoor_15.jpg"
/16 = "indoorPics/Indoor_16.jpg"
/17 = "indoorPics/Indoor_17.jpg"
/18 = "indoorPics/Indoor_18.jpg"
/19 = "indoorPics/Indoor_19.jpg"
/20 = "indoorPics/Indoor_20.jpg"
/21 = "indoorPics/Indoor_21.jpg"
/22 = "indoorPics/Indoor_22.jpg"
/23 = "indoorPics/Indoor_23.jpg"
/24 = "indoorPics/Indoor_24.jpg"
/25 = "indoorPics/Indoor_25.jpg"
/26 = "indoorPics/Indoor_26.jpg"
</item>

<item stim2_Indoor>
/1 = "indoorPics/Indoor_27.jpg"
/2 = "indoorPics/Indoor_28.jpg"
/3 = "indoorPics/Indoor_29.jpg"
/4 = "indoorPics/Indoor_30.jpg"
/5 = "indoorPics/Indoor_31.jpg"
/6 = "indoorPics/Indoor_32.jpg"
/7 = "indoorPics/Indoor_33.jpg"
/8 = "indoorPics/Indoor_34.jpg"
/9 = "indoorPics/Indoor_35.jpg"
/10 = "indoorPics/Indoor_36.jpg"
/11 = "indoorPics/Indoor_37.jpg"
/12 = "indoorPics/Indoor_38.jpg"
/13 = "indoorPics/Indoor_39.jpg"
/14 = "indoorPics/Indoor_40.jpg"
/15 = "indoorPics/Indoor_41.jpg"
/16 = "indoorPics/Indoor_42.jpg"
/17 = "indoorPics/Indoor_43.jpg"
/18 = "indoorPics/Indoor_44.jpg"
/19 = "indoorPics/Indoor_45.jpg"
/20 = "indoorPics/Indoor_46.jpg"
/21 = "indoorPics/Indoor_47.jpg"
/22 = "indoorPics/Indoor_48.jpg"
/23 = "indoorPics/Indoor_49.jpg"
/24 = "indoorPics/Indoor_50.jpg"
/25 = "indoorPics/Indoor_51.jpg"
/26 = "indoorPics/Indoor_52.jpg"
</item>

<item highValue>
/1 = "valPics/40cents.png"
/2 = "valPics/50cents.png"
/3 = "valPics/60cents.png"
/4 = "valPics/70cents.png"
/5 = "valPics/80cents.png"
</item>

<item lowValue>
/1 = "valPics/20cents.png"
/2 = "valPics/30cents.png"
/3 = "valPics/40cents.png"
/4 = "valPics/50cents.png"
/5 = "valPics/60cents.png"
</item>

*************************************************
Creating an Experiment
*************************************************

<expt>
/ blocks = [1=learning;2=memory]
</expt>

<values>
/ stim1 = 1
/ stim2 = 1
/ oldStim1 = 1
</values>

<block learning>
/ trials = [1-64 = sequence(cue,outcome)]
/ errormessage = false
</block>

<block memory>
/ trials = [1-5 = old]
/ errormessage = false
</block>

<trial cue>
/ ontrialbegin = [values.stim1=list.randomStim1.nextindex; list.memStim1.appenditem(values.stim1);]
/ pretrialpause = 1000
/ stimulustimes = [0=stim1]
/ beginresponseframe = 0
/ timeout = 3000
/ validresponse = (noresponse)
/ branch = [
openended.estimate
]
</trial>

<openended estimate>
/ position = (50, 50)
/ buttonlabel = " press enter to submit"
/ fontstyle = ("Arial",15)
/ inputdevice = keyboard
/ stimulustimes = [0=estimateQ]
/ linelength = 3
/ range = (1,100)
/ numlines = 1
/ responsefontstyle = ("Arial",30)
/ beginresponsetime = 0
/ timeout = 5000
</openended>

<trial outcome>
/ ontrialbegin = [values.stim2=list.randomStim2.nextindex; list.memStim2.appenditem(values.stim2);]
/ stimulustimes = [0=blank; 1=stim2; 1=highVal]
/ beginresponsetime = 0
/ trialduration = 3000
/ validresponse = (noresponse)
</trial>

<trial old>
/ ontrialbegin = [values.oldStim1 = list.memStim1.item(5),list.memStim1.item(1)]
/ stimulustimes = [0=blank; 1=oldStim1]
/ beginresponsetime = 0
/ trialduration = 3000
/ validresponse = (noresponse)
</trial>

<list randomStim1>
/ poolsize = 5
</list>

<list randomStim2>
/ poolsize = 5
</list>

<list memStim1>
/ selectionrate = always
</list>

<list memStim2>
</list>

<list oldStims>
</list>

RE: sequence of stimuli type within a trial

nrouhani — Thu, 14 Sep 2017 15:04:49 GMT

[quote]

[b]nrouhani - Thursday, September 14, 2017[/b]

[quote]

[b]Dave - Wednesday, September 13, 2017[/b]

<picture highVal> *this is contingent on whether it's an indoor or outdoor picture
/ items = highValue
/ size = (13%, 13%)
/ resetinterval = 0
/ vposition = 30
/ hposition = 50
</picture>

<picture lowVal> *this is contingent on whether it's an indoor or outdoor picture
/ items = lowValue
/ size = (10%, 10%)
/ resetinterval = 0
</picture>

You say you want the above to be contingent on whether the selected stimulus is indoor vs outdoor, but you don't explain the contingency you want. Please elaborate.

[/quote]

thank you!

the contingency is that if it's indoor, the reward is high value, and if outdoor, the reward is low value. (there are several conditions, but I should be able to generalize from this one example, thanks!).

[/quote]

by the way I see how to do this, no need to reply! thank you! :)

RE: sequence of stimuli type within a trial

nrouhani — Thu, 14 Sep 2017 07:05:31 GMT

[quote]

[b]Dave - Wednesday, September 13, 2017[/b]

[/quote]

RE: sequence of stimuli type within a trial

Dave — Wed, 13 Sep 2017 22:56:50 GMT

[quote]

[b]Dave - Wednesday, September 13, 2017[/b]

[/quote]

Questions about the specific indoor/outdoor to high/low value contingency aside (see previous response), the easiest options is to simply set up two separate chains of trials: one chain for "indoor", another chain for "outdoor". Then sample from those two chains at the block-level via a <list> with /maxrunsize set to 2:

*************************************************
Creating Stimuli
*************************************************
//indoor stims
<text stim1_indoor>
/ items = stim1_Indoor
/ size = (30%, 30%)
/ select = values.stim1
</text>

<text stim2_indoor>
/ items = stim2_Indoor
/ size = (30%, 30%)
/ select = values.stim2
</text>

//outdoor stims
<text stim1_outdoor>
/ items = stim1_Outdoor
/ size = (30%, 30%)
/ select = values.stim1
</text>

<text stim2_outdoor>
/ items = stim2_Outdoor
/ size = (30%, 30%)
/ select = values.stim2
</text>

<text highVal>
/ items = highValue
/ size = (13%, 13%)
/ resetinterval = 0
/ vposition = 30
/ hposition = 50
</text>

<text lowVal>
/ items = lowValue
/ size = (10%, 10%)
/ resetinterval = 0
</text>

<defaults>
/ screencolor = (175, 175, 175)
/ txcolor = darkgrey
</defaults>

<shape blank>
/ color = (175, 175, 175)
/ shape = rectangle
/ size = (100%, 100%)
</shape>

<text estimateQ>
/ items = ("please estimate the value of this type of scene ~n(indoor or outdoor) from 1 to 100")
/ hjustify = center
/ size = (50%,50%)
/ fontstyle = ("Arial",30)
/ vposition = (60)
/ hposition = (50)
/ txbgcolor = (transparent)
/ txcolor = aliceblue
/ erase = false
</text>

<item stim1_Outdoor>
/1 = "outdoorPics/Outdoor_1.jpg"
/2 = "outdoorPics/Outdoor_2.jpg"
/3 = "outdoorPics/Outdoor_3.jpg"
/4 = "outdoorPics/Outdoor_4.jpg"
/5 = "outdoorPics/Outdoor_5.jpg"
/6 = "outdoorPics/Outdoor_6.jpg"
/7 = "outdoorPics/Outdoor_7.jpg"
/8 = "outdoorPics/Outdoor_8.jpg"
/9 = "outdoorPics/Outdoor_9.jpg"
/10 = "outdoorPics/Outdoor_10.jpg"
/11 = "outdoorPics/Outdoor_11.jpg"
/12 = "outdoorPics/Outdoor_12.jpg"
/13 = "outdoorPics/Outdoor_13.jpg"
/14 = "outdoorPics/Outdoor_14.jpg"
/15 = "outdoorPics/Outdoor_15.jpg"
/16 = "outdoorPics/Outdoor_16.jpg"
/17 = "outdoorPics/Outdoor_17.jpg"
/18 = "outdoorPics/Outdoor_18.jpg"
/19 = "outdoorPics/Outdoor_19.jpg"
/20 = "outdoorPics/Outdoor_20.jpg"
/21 = "outdoorPics/Outdoor_21.jpg"
/22 = "outdoorPics/Outdoor_22.jpg"
/23 = "outdoorPics/Outdoor_23.jpg"
/24 = "outdoorPics/Outdoor_24.jpg"
/25 = "outdoorPics/Outdoor_25.jpg"
/26 = "outdoorPics/Outdoor_26.jpg"
</item>

<item stim2_Outdoor>
/1 = "outdoorPics/Outdoor_27.jpg"
/2 = "outdoorPics/Outdoor_28.jpg"
/3 = "outdoorPics/Outdoor_29.jpg"
/4 = "outdoorPics/Outdoor_30.jpg"
/5 = "outdoorPics/Outdoor_31.jpg"
/6 = "outdoorPics/Outdoor_32.jpg"
/7 = "outdoorPics/Outdoor_33.jpg"
/8 = "outdoorPics/Outdoor_34.jpg"
/9 = "outdoorPics/Outdoor_35.jpg"
/10 = "outdoorPics/Outdoor_36.jpg"
/11 = "outdoorPics/Outdoor_37.jpg"
/12 = "outdoorPics/Outdoor_38.jpg"
/13 = "outdoorPics/Outdoor_39.jpg"
/14 = "outdoorPics/Outdoor_40.jpg"
/15 = "outdoorPics/Outdoor_41.jpg"
/16 = "outdoorPics/Outdoor_42.jpg"
/17 = "outdoorPics/Outdoor_43.jpg"
/18 = "outdoorPics/Outdoor_44.jpg"
/19 = "outdoorPics/Outdoor_45.jpg"
/20 = "outdoorPics/Outdoor_46.jpg"
/21 = "outdoorPics/Outdoor_47.jpg"
/22 = "outdoorPics/Outdoor_48.jpg"
/23 = "outdoorPics/Outdoor_49.jpg"
/24 = "outdoorPics/Outdoor_50.jpg"
/25 = "outdoorPics/Outdoor_51.jpg"
/26 = "outdoorPics/Outdoor_53.jpg"
</item>

<item stim1_Indoor>
/1 = "indoorPics/Indoor_1.jpg"
/2 = "indoorPics/Indoor_2.jpg"
/3 = "indoorPics/Indoor_3.jpg"
/4 = "indoorPics/Indoor_4.jpg"
/5 = "indoorPics/Indoor_5.jpg"
/6 = "indoorPics/Indoor_6.jpg"
/7 = "indoorPics/Indoor_7.jpg"
/8 = "indoorPics/Indoor_8.jpg"
/9 = "indoorPics/Indoor_9.jpg"
/10 = "indoorPics/Indoor_10.jpg"
/11 = "indoorPics/Indoor_11.jpg"
/12 = "indoorPics/Indoor_12.jpg"
/13 = "indoorPics/Indoor_13.jpg"
/14 = "indoorPics/Indoor_14.jpg"
/15 = "indoorPics/Indoor_15.jpg"
/16 = "indoorPics/Indoor_16.jpg"
/17 = "indoorPics/Indoor_17.jpg"
/18 = "indoorPics/Indoor_18.jpg"
/19 = "indoorPics/Indoor_19.jpg"
/20 = "indoorPics/Indoor_20.jpg"
/21 = "indoorPics/Indoor_21.jpg"
/22 = "indoorPics/Indoor_22.jpg"
/23 = "indoorPics/Indoor_23.jpg"
/24 = "indoorPics/Indoor_24.jpg"
/25 = "indoorPics/Indoor_25.jpg"
/26 = "indoorPics/Indoor_26.jpg"
</item>

<item stim2_Indoor>
/1 = "indoorPics/Indoor_27.jpg"
/2 = "indoorPics/Indoor_28.jpg"
/3 = "indoorPics/Indoor_29.jpg"
/4 = "indoorPics/Indoor_30.jpg"
/5 = "indoorPics/Indoor_31.jpg"
/6 = "indoorPics/Indoor_32.jpg"
/7 = "indoorPics/Indoor_33.jpg"
/8 = "indoorPics/Indoor_34.jpg"
/9 = "indoorPics/Indoor_35.jpg"
/10 = "indoorPics/Indoor_36.jpg"
/11 = "indoorPics/Indoor_37.jpg"
/12 = "indoorPics/Indoor_38.jpg"
/13 = "indoorPics/Indoor_39.jpg"
/14 = "indoorPics/Indoor_40.jpg"
/15 = "indoorPics/Indoor_41.jpg"
/16 = "indoorPics/Indoor_42.jpg"
/17 = "indoorPics/Indoor_43.jpg"
/18 = "indoorPics/Indoor_44.jpg"
/19 = "indoorPics/Indoor_45.jpg"
/20 = "indoorPics/Indoor_46.jpg"
/21 = "indoorPics/Indoor_47.jpg"
/22 = "indoorPics/Indoor_48.jpg"
/23 = "indoorPics/Indoor_49.jpg"
/24 = "indoorPics/Indoor_50.jpg"
/25 = "indoorPics/Indoor_51.jpg"
/26 = "indoorPics/Indoor_52.jpg"
</item>

<item highValue>
/1 = "valPics/40cents.png"
/2 = "valPics/50cents.png"
/3 = "valPics/60cents.png"
/4 = "valPics/70cents.png"
/5 = "valPics/80cents.png"
</item>

<item lowValue>
/1 = "valPics/20cents.png"
/2 = "valPics/30cents.png"
/3 = "valPics/40cents.png"
/4 = "valPics/50cents.png"
/5 = "valPics/60cents.png"
</item>

*************************************************
Creating an Experiment
*************************************************

<expt>
/ blocks = [1=learning]
</expt>

<values>
/ stim1 = 1
/ stim2 = 1
</values>

<block learning>
/ trials = [1-52 = list.triallist]
/ errormessage = false
</block>

<list triallist>
/ items = (trial.cue_indoor, trial.cue_outdoor)
/ poolsize = 52
/ maxrunsize = 2
</list>

//indoor trials
<trial cue_indoor>
/ ontrialbegin = [values.stim1=list.s1_indoor.nextindex]
/ pretrialpause = 1000
/ stimulustimes = [0=stim1_indoor]
/ beginresponseframe = 0
/ timeout = 3000
/ validresponse = (noresponse)
/ branch = [
openended.estimate_indoor
]
</trial>

<openended estimate_indoor>
/ position = (50, 50)
/ buttonlabel = " press enter to submit"
/ fontstyle = ("Arial",15)
/ inputdevice = keyboard
/ stimulustimes = [0=estimateQ]
/ linelength = 3
/ range = (1,100)
/ numlines = 1
/ responsefontstyle = ("Arial",30)
/ beginresponsetime = 0
/ timeout = 5000
/ branch = [
trial.outcome_indoor
]
</openended>

<trial outcome_indoor>
/ ontrialbegin = [values.stim2=list.s2_indoor.nextindex]
/ stimulustimes = [0=blank,stim2_indoor, highVal]
/ beginresponsetime = 0
/ trialduration = 3000
/ validresponse = (noresponse)
</trial>

//outdoor trials
<trial cue_outdoor>
/ ontrialbegin = [values.stim1=list.s1_outdoor.nextindex;]
/ pretrialpause = 1000
/ stimulustimes = [0=stim1_outdoor]
/ beginresponseframe = 0
/ timeout = 3000
/ validresponse = (noresponse)
/ branch = [
openended.estimate_outdoor
]
</trial>

<openended estimate_outdoor>
/ position = (50, 50)
/ buttonlabel = " press enter to submit"
/ fontstyle = ("Arial",15)
/ inputdevice = keyboard
/ stimulustimes = [0=estimateQ]
/ linelength = 3
/ range = (1,100)
/ numlines = 1
/ responsefontstyle = ("Arial",30)
/ beginresponsetime = 0
/ timeout = 5000
/ branch = [
trial.outcome_outdoor
]
</openended>

<trial outcome_outdoor>
/ ontrialbegin = [values.stim2=list.s2_outdoor.nextindex]
/ stimulustimes = [0=blank,stim2_outdoor, lowVal]
/ beginresponsetime = 0
/ trialduration = 3000
/ validresponse = (noresponse)
</trial>

//indoor item numbers
//stim1
<list s1_indoor>
/ poolsize = 26
</list>

//stim2
<list s2_indoor>
/ poolsize = 26
</list>

//outdoor item numbers
//stim1
<list s1_outdoor>
/ poolsize = 26
</list>

//stim2
<list s2_outdoor>
/ poolsize = 26
</list>

RE: sequence of stimuli type within a trial

Dave — Wed, 13 Sep 2017 22:24:59 GMT