By Mwood - 4/5/2016
I'm trying to teach older adults how to use a mouse by clicking on pictures and once they click on that image (the image only) to move on to the next block/image. However, I've been having issues where for example the second image just flashes and then disappears. I'm not sure why. Also, sometimes it doesn't show up when I enter different positions sometimes.
<defaults>
/ screencolor = (255,255,255)
/ fontstyle = ("Arial", 20pt)
/inputdevice = mousekey
</defaults>
<text instructions>
/ items = instructions
/ hjustify = center
/ size = (90%, 60%)
/ position = (50%, 90%)
/ valign = bottom
/ select = sequence
</text>
<trial instructions>
/ stimulustimes = [1=instructions]
/ validresponse = (elephant)
/responseinterrupt = trial
/ errormessage = false
/ recorddata = false
</trial>
<trial instructions2>
/ stimulustimes = [1=instructions]
/ validresponse = (elephant2)
/responseinterrupt = trial
/ errormessage = false
/ recorddata = false
</trial>
<trial instructions3>
/ stimulustimes = [1=instructions]
/ validresponse = (elephant3)
/responseinterrupt = trial
/ errormessage = false
/ recorddata = false
</trial>
<picture elephant>
/ items = ("elephant.png")
/ position = (0, 0)
/ valign = top
/ halign = left
/ size = (20%, 20%)
</picture>
<picture elephant2>
/ items = ("elephant.png")
/valign = bottom
/halight = left
/size = (20%, 20%)
</picture>
<block elephant>
/ bgstim = (elephant)
/ trials = [1 =instructions]
/ recorddata = false
</block>
<block elephant2>
/bgstim = (elephant2)
/trials = [1=instructions2]
/recorddata = false
</block>
<item instructions>
/1 = "Click on the image that you see on the screen."
</item>
<expt>
/ blocks = [1=elephant; 2=elephant2]
/ showmousecursor = true
</expt>
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By Dave - 4/5/2016
<picture elephant>
/ items = ("elephant.png")
/ position = (0, 0)
/ valign = top
/ halign = left
/ size = (20%, 20%)
</picture>
<picture elephant2>
/ items = ("elephant.png")
/valign = bottom
/halight = left
/size = (20%, 20%)
</picture>
note the typo ("haligth"). Also, the image is aligned to the bottom. No /position is specified, i.e. the image gets drawn to the center of the screen and then then immediately overwritten by the instructions in the <trial>.
Display the <picture>s by your <trial> elements instead of /bgstim and you can easily see this for yourself.
<trial instructions2>
/ stimulustimes = [1=instructions, elephant2]
/ validresponse = (elephant2)
/responseinterrupt = trial
/ errormessage = false
/ recorddata = false
</trial>
vs
<trial instructions2>
/ stimulustimes = [1=elephant2, instructions]
/ validresponse = (elephant2)
/responseinterrupt = trial
/ errormessage = false
/ recorddata = false
</trial>
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By Mwood - 4/7/2016
That fixed the flashing problem, but the picture is still on top of the instructions. Is there an easier way to get it to move the position. Is there a better position command?
<defaucolor = (255,255,255)
/ fontstyle = ("Arial", 20pt)
/inputdevice = mousekey
</defaults>
lts>
/ screen
<text instructions>
/ items = instructions
/ hjustify = center
/ size = (90%, 60%)
/ position = (50%, 90%)
/ valign = bottom
/ select = sequence
</text>
<trial instructions>
/ stimulustimes = [1=instructions; 2= elephant]
/ validresponse = (elephant)
/responseinterrupt = trial
/ errormessage = false
/ recorddata = false
</trial>
<trial instructions2>
/ stimulustimes = [1=instructions; 2=elephant2]
/ validresponse = (elephant2)
/responseinterrupt = trial
/ errormessage = false
/ recorddata = false
</trial> -
<picture elephant>
/ items = ("elephant.png")
/ position = (0, 0)
/ valign = top
/ halign = left
/ size = (20%, 20%)
</picture>
<picture elephant2>
/ items = ("elephant.png")
/valign = bottom
/halign = left
/size = (20%, 20%)
</picture>
<block elephant>
/ trials = [1 =instructions]
/ recorddata = false
</block>
<block elephant2>
/bgstim = (elephant2)
/trials = [1=instructions2]
/recorddata = false
</block>
<item instructions>
/1 = "Click on the image that you see on the screen."
</item>
<expt>
/ blocks = [1=elephant; 2=elephant2]
/ showmousecursor = true
</expt>
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By Dave - 4/7/2016
The picture is on top of the instructions because that's what you specified:
<picture elephant2>
/ items = ("elephant.png")
/valign = bottom
/halign = left
/size = (20%, 20%)
</picture>
has no /position defined, which means it'll be displayed in the center. Define its /position such that it does not overlap with the instructions.
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