+x+xHi,
I have a question regarding the script below. When this trial is presented, participants have to remember a letter and press the spacebar when they see a picture of a light bulb turned on. Now I am wondering whether it is possible to show them a picture of a light bulb that is turned off when they perform the valid response whilst the letters stays onscreen? Do I need to make a new trial that gets invoked via the / branch logic, or is there a more efficient way of doing this?
<trial show_letter_acting>
/ ontrialbegin = [values.lettercount+=1]
/ ontrialbegin = [values.lightbulb_state = list.lightbulbstates_acting.nextvalue]
/ ontrialend= [item.PresentedLetters.item=text.Letters.currentitem]
/ pretrialpause = 200
/ stimulusframes = [1=BlackFrame, GrayFrame, Letters, lightbulb_acting, currentsetsize]
/ trialduration = values.learninginterval
/ inputdevice = keyboard
/ validresponse = (57)
/ branch = [if(values.lettercount==values.currentsetsize)trial.recall_letter_acting]
/ branch = [trial.InitMathProblem01]
/ recorddata = true
</trial>
Kind regards
You can use /responsemessage to display the image upon key press
In essence, something like this:
<picture lightbulb_practice_letter>
/ items = ("lamp_uit.png", "lamp_aan.png")
/ position = (50, 30)
/ size = (20%, 20%)
/ select = values.lightbulb_state
/ erase = false</picture>
<list lightbulbstates_practice_letter>
/ items = (1,2,1,2,1,2,1,2,1,2)
</list>
<picture lightbulb_nonacting>
/ items = ("lamp_uit.png", "lamp_aan.png")
/ position = (50, 30)
/ size = (20%, 20%)
/ select = values.lightbulb_state
/ erase = false</picture>
<list lightbulbstates_nonacting>
/ items = (1,1,1,1,1,1,1,1,1,1,1,1,2,2,2)
</list>
<picture lightbulb_acting>
/ items = ("lamp_uit.png", "lamp_aan.png")
/ position = (50, 30)
/ size = (20%, 20%)
/ select = values.lightbulb_state
/ erase = false</picture>
<list lightbulbstates_acting>
/ items = (2,2,2,2,2,2,2,2,2,2,2,2,1,1,1)
</list>
<picture lightbulb_off>
/ items = ("lamp_uit.png")
/ position = (50, 30)
/ size = (20%, 20%)
/ erase = false
</picture>
with
<trial show_letter_acting>
/ ontrialbegin = [values.lettercount+=1]
/ ontrialbegin = [values.lightbulb_state = list.lightbulbstates_acting.nextvalue]
/ ontrialend= [item.PresentedLetters.item=text.Letters.currentitem]
/ pretrialpause = 200
/ stimulusframes = [1=BlackFrame, GrayFrame, Letters, lightbulb_acting, currentsetsize]
/ trialduration = values.learninginterval
/ inputdevice = keyboard
/ validresponse = (57)
/ responsemessage = (57, lightbulb_off, 0)
/ responsemessage = (57, letters, 0)/ branch = [if(values.lettercount==values.currentsetsize)trial.recall_letter]
/ branch = [trial.InitMathProblem01]
/ recorddata = true
</trial>