Millisecond Forums

Hi, 

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