Millisecond Forums

Thank you so much for your kind help! I'm sorry for my rough description. I would like to port some makers to identify for each emotional block (i.e. Marker 1 for block AN, marker 2 for block FN etc.). I don't know how to edit the trial content to port those markers and showing them in the gaze file. Attached please find a pic for what problem I'm facing now. Really appreciate for your help on my task! Thank you so much!
The marker just showed "Zero" values so I would like to set it as an identical value then I could know and identity the eyetracker data in which block.  


   

For the sake of illustration, suppose you wish to send the marker value 1 during during practice go trials, and the value 2 for practice no go trials, at the time the practice stimulus is presented.

You have already define a marker <port> element as

<port marker>
/ items = (0)
/ port = eyetracker
/ erase = false
</port>

so then you can do

<trial go_practice>
/ ontrialbegin = [
port.marker.setitem(1, 1);
trial.go_practice.insertstimulustime(clearscreen, parameters.picDuration);
trial.go_practice.insertstimulustime(text.fixation, parameters.picDuration);
trial.go_practice.insertstimulustime(text.fixation, parameters.responseDuration);
values.iti = list.iti.nextvalue;
]
/ stimulustimes = [0 = practice, marker]
/ validresponse = (parameters.goKey, 0)
/ correctresponse = (parameters.goKey)
/ beginresponsetime = 0
/ responseinterrupt = frames
/ timeout = parameters.responseDuration
/ ontrialend = [
trial.go_practice.resetstimulusframes();
values.response_time = trial.go_practice.latency;

values.image = picture.practice.currentitem;

if (trial.go_practice.correct){
values.response_outcome = "HIT";
} else {
values.response_outcome = "MISS";
values.response_time = "";
};
]
/ branch = [
trial.feedback;
]
</trial>

and for the no-go trial

<trial nogo_practice>
/ ontrialbegin = [
port.marker.setitem(2, 1);
trial.nogo_practice.insertstimulustime(clearscreen, parameters.picDuration);
trial.nogo_practice.insertstimulustime(text.fixation, parameters.picDuration);
trial.nogo_practice.insertstimulustime(text.fixation, parameters.responseDuration);
values.iti = list.iti.nextvalue;
]
/ stimulustimes = [0 = practice_neutral, marker]
/ validresponse = (parameters.goKey, 0)
/ correctresponse = (0)
/ beginresponsetime = 0
/ responseinterrupt = frames
/ timeout = parameters.responseDuration
/ ontrialend = [
trial.nogo_practice.resetstimulusframes();
values.response_time = trial.nogo_practice.latency;

values.image = picture.neutral.currentitem;

if (trial.nogo_practice.correct){
values.response_outcome = "CR";
values.response_time = "";
} else {
values.response_outcome = "FA";
};
]
/ branch = [
trial.feedback;
]
</trial>

The <port> element behaves like any other stimulus in Inquisit. I.e. you need to actually "display" the stimulus just like you would a <text> element to send the marker out, i.e. include it in the <trial>s' /stimulustimes or -frames. Moreover, your port needs to actually send some non-zero value, and yours doesn't do that. It is simply set to nothing.

I cannot give you any concrete code example, since you did not explain at all when you wish to send the marker or markers, what marker values you wish to send, etc. These are all things you need to decide first.