Millisecond Forums

Hi,

We are showing 16 blocks, with 8 images presented in each block (this is the same image shown 8 times).
The images are facial expressions shown by a child’s caregiver and a stranger, so that:
Block HC = Happy Caregiver. The same image is shown 8 times, before another block is shown in randomized order. For your reference:
HS = Happy Stranger
FC = Fearful Caregiver
FS = Fearful Stranger
AC = Anger Caregiver
AS = Anger Stranger
NC = Neutral Caregiver
NS = Neutral Stranger

The trial starts with a fixation cross (1000ms), followed by the image (3000ms), and an inter-trial interval (1000ms).

We have loop/s now working where we press 1 to initiate a looming ball (to grab attention of child if they are not looking at the screen) and space to initiate a trial.

However, our Neutral Stranger block/trials keep playing beyond the 8 times we would like it to be shown.
We think that this has to do with the line of code below; however, unsure how to best fix this.

Thank you!

<trial ITI>
/ stimulusframes = [1 = picture.fixation]
/trialduration = parameters.ITI
/ ontrialend = [
trial.ITI.resetstimulusframes();
]
/recorddata = false
/ branch = [
            if (script.currentblock== "HC") trial.HC
            if (script.currentblock =="HS") trial.HS;
            if (script.currentblock =="AC") trial.AC;
            if (script.currentblock =="AS") trial.AS;
            if (script.currentblock =="FC") trial.FC;
            if (script.currentblock =="FS") trial.FS;
            if (script.currentblock =="NC") trial.NC;
            else if (script.currentblock =="NS") trial.NS;
]
</trial>

<trial blank>
/ stimulusframes = [1 = picture.blank]
/trialduration = parameters.ITI
/ ontrialend = [
trial.blank.resetstimulusframes();
]
/recorddata = false
/ branch = [
            trial.start
]
</trial>

<trial start>
/ validresponse = (20,2)
/ branch = [
if (trial.start.response == 2) trial.ball
else if (trial.start.response == 20) trial.ITI;
]
/ recorddata = false
</trial>


<trial ball>
/ stimulusframes = [1 = video.ballani]
/ validresponse = (20)
/ branch = [
trial.start;
]
/ recorddata = false
</trial>