Millisecond Forums » Millisecond Forums » Inquisit 5 » Frame around two target stimuli

Frame around two target stimuli

yaz — Mon, 12 Mar 2018 17:58:35 GMT

Hi,

I am working on an Implicit Association Task (IAT) and would like to know how I could add a coloured frame around the two stimuli images. However, I need two coloured frames for each trial (the two images in one trial should be in a blue frame while the two images in another trial should be in a yellow frame).

Thank you for your time in advance.

RE: Frame around two target stimuli

Dave — Mon, 12 Mar 2018 17:58:35 GMT

[quote]

[b]yaz - Monday, March 12, 2018[/b]

[quote]

[b]yaz - Monday, March 12, 2018[/b]

[quote]

[b]Dave - Monday, March 12, 2018[/b]

[quote]

[b]yaz - Monday, March 12, 2018[/b]

[/quote]

You need to set up <shape> elements that serve as the "frame". /size them slightly larger than the target stimuli and display them "behind" the targets.

<trial example>
/ stimulusframes = [1=frame, target]
/ validresponse = (57)
</trial>

<shape frame>
/ shape = rectangle
/ color = yellow
/ size = (21%, 21%)
</shape>

<text target>
/ items = ("Some text.")
/ size = (20%, 20%)
/ txbgcolor = white
/ vjustify = center
</text>

[/quote]

Thank you very much

[/quote]

Is there a way in which I can randomly alternate between the presentation of the yellow and blue frame between the trials?

Thank you for your help.

[/quote]

Sure, the easiest way would probably be to simply randomly switch the <shape>'s color as needed on a per-trial basis. Suppose you have 10 trials total, and want the shape to be yellow in half of the trials, blue in the other half:

<block myblock>
/ trials = [1-10=example]
</block>

<list framecolor>
/ items = (yellow, blue)
/ poolsize = 10
</list>

<trial example>
/ ontrialbegin = [
shape.frame.color = list.framecolor.nextvalue;
]
/ stimulusframes = [1=frame, target]
/ validresponse = (57)
</trial>

<shape frame>
/ shape = rectangle
/ color = white
/ size = (21%, 21%)
</shape>

<text target>
/ items = ("Some text.")
/ size = (20%, 20%)
/ txbgcolor = white
/ vjustify = center
</text>

RE: Frame around two target stimuli

yaz — Mon, 12 Mar 2018 16:07:44 GMT

[quote]

[b]yaz - Monday, March 12, 2018[/b]

[quote]

[b]Dave - Monday, March 12, 2018[/b]

[quote]

[b]yaz - Monday, March 12, 2018[/b]

[/quote]

Thank you very much

[/quote]

Is there a way in which I can randomly alternate between the presentation of the yellow and blue frame between the trials?

Thank you for your help.

RE: Frame around two target stimuli

yaz — Mon, 12 Mar 2018 14:31:58 GMT

[quote]

[b]Dave - Monday, March 12, 2018[/b]

[quote]

[b]yaz - Monday, March 12, 2018[/b]

[/quote]

Thank you very much

RE: Frame around two target stimuli

Dave — Mon, 12 Mar 2018 10:28:55 GMT

[quote]

[b]yaz - Monday, March 12, 2018[/b]

[/quote]