Millisecond Forums

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lukasg - 1/24/2022

When trying to replace the colour names with RGB codes, I keep getting the error code 'Missing ['. What is the issue with the following code:

<item itemCols>
/ 1 = "31,119,180"
/ 2 = "255,127,14"
/ 3 = "44,160,44"
/ 4 = "214,39,40"
/ 5 = "148,103,189"
/ 6 = "140,86,75"
/ 7 = "227,119,194"
/ 8 = "23,190,207"
</item>

<list d_colors>
/ items = item.itemCols
/ selectionrate = always
/ not = (values.t_color)
</list>

+x

 

Dave - 1/24/2022

You can easily integrate that into the existing logic.

<defaults>
/ fontstyle = ("Arial", 5%, true)
</defaults>

<values>
/ t = 0
/ t_x = 0
/ t_color = black
/ d1 = 0
/ d1_x = 0
/ d1_color = black
/ d2 = 0
/ d2_x = 0
/ d2_color = black

/ cresp = " "
</values>

<text t>
/ items = targets
/ select = values.t
/ hposition = values.t_x
/ txcolor = values.t_color
/ erase = false
</text>

<item targets>
/ 1 = "N"
/ 2 = "X"
</item>

<text d1>
/ items = distractors
/ select = values.d1
/ hposition = values.d1_x
/ txcolor = values.d1_color
/ erase = false
</text>

<text d2>
/ items = distractors
/ select = values.d2
/ hposition = values.d2_x
/ txcolor = values.d2_color
/ erase = false
</text>

<item distractors>
/ 1 = "H"
/ 1 = "S"
/ 1 = "T"
/ 1 = "O"
</item>

// 30 trials in this example,
// 15 x target 1 ("N")
// 15 x target 2 ("X")
<list t_items>
/ items = (1,2)
/ poolsize = 10
</list>

// two distractors sampled per trial at random
<list d_items>
/ items = (1,2,3,4)
/ selectionrate = always
</list>

// 30 trials in this example,
// target 10 x in left position,
// target 10 x in middle position,
// target 10 x in right position
<list t_x>
/ items = (40%, 50%, 60%)
/ poolsize = 30
</list>

// random position for two distractors, not equal to target position
<list d_x>
/ items = (40%, 50%, 60%)
/ selectionrate = always
/ not = (values.t_x)
</list>

// 30 trials in this example,
// target 10 x in red,
// target 10 x in green,
// target 10 x in blue,
<list t_colors>
/ items = (red, green, blue)
/ poolsize = 30
</list>

// random colors for two distractors, not equal to target color
<list d_colors>
/ items = (red, green, blue)
/ selectionrate = always
/ not = (values.t_color)
</list>

<trial example>
/ ontrialbegin = [
    // select target item
    values.t = list.t_items.nextvalue;
    // select distractor items
    values.d1 = list.d_items.nextvalue;
    values.d2 = list.d_items.nextvalue;
    // select target position
    values.t_x = list.t_x.nextvalue;
    // select distractor positions
    values.d1_x = list.d_x.nextvalue;
    values.d2_x = list.d_x.nextvalue;
    // select target color
    values.t_color = list.t_colors.nextvalue;
    // and corresponding response key
    if (values.t_color == red) {
        values.cresp = "R";
    } else if (values.t_color == green) {
        values.cresp = "G";
    } else if (values.t_color == blue) {
        values.cresp = "B";
    };
    // select distractor colors
    values.d1_color = list.d_colors.nextvalue;
    values.d2_color = list.d_colors.nextvalue;
]

/ ontrialend = [
    // reset relevant lists for next trial
    list.d_items.reset();
    list.d_x.reset();
    list.d_colors.reset();
]

/ stimulusframes = [1=clearscreen, t, d1, d2]
/ validresponse = ("R", "G", "B")
/ correctresponse = (values.cresp)
</trial>

<block myblock>
/ trials = [1-30 = example]
/ correctmessage = true(correctmsg, 500)
/ errormessage = true(errormsg, 500)
</block>

<text correctmsg>
/ items = ("CORRECT")
/ color = green
/ position = (50%, 80%)
/ erase = false
</text>

<text errormsg>
/ items = ("WRONG")
/ color = red
/ position = (50%, 80%)
/ erase = false
</text>

+x

 

lukasg - 1/24/2022

+x

 

Dave - 1/24/2022

Here's a basic example:

<defaults>
/ fontstyle = ("Arial", 5%, true)
</defaults>

<values>
/ t = 0
/ t_x = 0
/ t_color = black
/ d1 = 0
/ d1_x = 0
/ d1_color = black
/ d2 = 0
/ d2_x = 0
/ d2_color = black
</values>

<text t>
/ items = targets
/ select = values.t
/ hposition = values.t_x
/ txcolor = values.t_color
/ erase = false
</text>

<item targets>
/ 1 = "N"
/ 2 = "X"
</item>

<text d1>
/ items = distractors
/ select = values.d1
/ hposition = values.d1_x
/ txcolor = values.d1_color
/ erase = false
</text>

<text d2>
/ items = distractors
/ select = values.d2
/ hposition = values.d2_x
/ txcolor = values.d2_color
/ erase = false
</text>

<item distractors>
/ 1 = "H"
/ 1 = "S"
/ 1 = "T"
/ 1 = "O"
</item>

// 30 trials in this example,
// 15 x target 1 ("N")
// 15 x target 2 ("X")
<list t_items>
/ items = (1,2)
/ poolsize = 10
</list>

// two distractors sampled per trial at random
<list d_items>
/ items = (1,2,3,4)
/ selectionrate = always
</list>

// 30 trials in this example,
// target 10 x in left position,
// target 10 x in middle position,
// target 10 x in right position
<list t_x>
/ items = (40%, 50%, 60%)
/ poolsize = 30
</list>

// random position for two distractors, not equal to target position
<list d_x>
/ items = (40%, 50%, 60%)
/ selectionrate = always
/ not = (values.t_x)
</list>

// 30 trials in this example,
// target 10 x in red,
// target 10 x in green,
// target 10 x in blue,
<list t_colors>
/ items = (red, green, blue)
/ poolsize = 30
</list>

// random colors for two distractors, not equal to target color
<list d_colors>
/ items = (red, green, blue)
/ selectionrate = always
/ not = (values.t_color)
</list>

<trial example>
/ ontrialbegin = [
    // select target item
    values.t = list.t_items.nextvalue;
    // select distractor items
    values.d1 = list.d_items.nextvalue;
    values.d2 = list.d_items.nextvalue;
    // select target position
    values.t_x = list.t_x.nextvalue;
    // select distractor positions
    values.d1_x = list.d_x.nextvalue;
    values.d2_x = list.d_x.nextvalue;
    // select target color
    values.t_color = list.t_colors.nextvalue;
    // select distractor colors
    values.d1_color = list.d_colors.nextvalue;
    values.d2_color = list.d_colors.nextvalue;
]

/ ontrialend = [
    // reset relevant lists for next trial
    list.d_items.reset();
    list.d_x.reset();
    list.d_colors.reset();
]

/ stimulusframes = [1=clearscreen, t, d1, d2]
/ validresponse = (57)
</trial>

<block myblock>
/ trials = [1-30 = example]
</block>

Thanks! Sadly, this would have taken me hours. One additional question, if I want the correct response to be conditional on the colour of the presented target, how would I equate the different colours to the different response keys?

+x

 

Dave - 1/24/2022

Here's a basic example:

<defaults>
/ fontstyle = ("Arial", 5%, true)
</defaults>

<values>
/ t = 0
/ t_x = 0
/ t_color = black
/ d1 = 0
/ d1_x = 0
/ d1_color = black
/ d2 = 0
/ d2_x = 0
/ d2_color = black
</values>

<text t>
/ items = targets
/ select = values.t
/ hposition = values.t_x
/ txcolor = values.t_color
/ erase = false
</text>

<item targets>
/ 1 = "N"
/ 2 = "X"
</item>

<text d1>
/ items = distractors
/ select = values.d1
/ hposition = values.d1_x
/ txcolor = values.d1_color
/ erase = false
</text>

<text d2>
/ items = distractors
/ select = values.d2
/ hposition = values.d2_x
/ txcolor = values.d2_color
/ erase = false
</text>

<item distractors>
/ 1 = "H"
/ 1 = "S"
/ 1 = "T"
/ 1 = "O"
</item>

// 30 trials in this example,
// 15 x target 1 ("N")
// 15 x target 2 ("X")
<list t_items>
/ items = (1,2)
/ poolsize = 10
</list>

// two distractors sampled per trial at random
<list d_items>
/ items = (1,2,3,4)
/ selectionrate = always
</list>

// 30 trials in this example,
// target 10 x in left position,
// target 10 x in middle position,
// target 10 x in right position
<list t_x>
/ items = (40%, 50%, 60%)
/ poolsize = 30
</list>

// random position for two distractors, not equal to target position
<list d_x>
/ items = (40%, 50%, 60%)
/ selectionrate = always
/ not = (values.t_x)
</list>

// 30 trials in this example,
// target 10 x in red,
// target 10 x in green,
// target 10 x in blue,
<list t_colors>
/ items = (red, green, blue)
/ poolsize = 30
</list>

// random colors for two distractors, not equal to target color
<list d_colors>
/ items = (red, green, blue)
/ selectionrate = always
/ not = (values.t_color)
</list>

<trial example>
/ ontrialbegin = [
    // select target item
    values.t = list.t_items.nextvalue;
    // select distractor items
    values.d1 = list.d_items.nextvalue;
    values.d2 = list.d_items.nextvalue;
    // select target position
    values.t_x = list.t_x.nextvalue;
    // select distractor positions
    values.d1_x = list.d_x.nextvalue;
    values.d2_x = list.d_x.nextvalue;
    // select target color
    values.t_color = list.t_colors.nextvalue;
    // select distractor colors
    values.d1_color = list.d_colors.nextvalue;
    values.d2_color = list.d_colors.nextvalue;
]

/ ontrialend = [
    // reset relevant lists for next trial
    list.d_items.reset();
    list.d_x.reset();
    list.d_colors.reset();
]

/ stimulusframes = [1=clearscreen, t, d1, d2]
/ validresponse = (57)
</trial>

<block myblock>
/ trials = [1-30 = example]
</block>

+x

 

lukasg - 1/24/2022

+x

 

Dave - 1/24/2022

This pertained to a case where you have a single <text> element and want to display single letters or words of a given *item* in different colors than the rest of the item's words or letters. That wasn't possible back then (though it is now). You, however, have separate <text> elements for target and distractors anyway, which can easily be displayed in different colors, that was possible even back then and of course still is.

Thanks for your response, Dave. Would you be able to demonstrate how this could be achieved? My previous attempts have been without success :/

+x

 

Dave - 1/24/2022

This pertained to a case where you have a single <text> element and want to display single letters or words of a given *item* in different colors than the rest of the item's words or letters. That wasn't possible back then (though it is now). You, however, have separate <text> elements for target and distractors anyway, which can easily be displayed in different colors, that was possible even back then and of course still is.

+x

 

lukasg - 1/24/2022

+x

 

lukasg - 1/24/2022

+x

 

Dave - 1/24/2022

> Since Inquisit seems unable to present separate text-items in combination or a text-element with different colours

What makes you think that?

This forum entry from a few years back. However, I am more than happy to explore alternative avenues in setting up an illusory conjunction task.

https://www.millisecond.com/forums/Topic18657.aspx

+x

 

lukasg - 1/24/2022

+x

 

Dave - 1/24/2022

> Since Inquisit seems unable to present separate text-items in combination or a text-element with different colours

What makes you think that?

This forum entry from a few years back. However, I am more than happy to explore alternative avenues in setting up an illusory conjunction task.

+x

 

Dave - 1/24/2022

> Since Inquisit seems unable to present separate text-items in combination or a text-element with different colours

What makes you think that?