Millisecond Forums » Millisecond Forums » Inquisit 5 » EEG trigger issues

EEG trigger issues

JM776 — Fri, 03 Jul 2020 05:32:10 GMT

Hi there!

I was wondering if anyone could please help me out with a couple of EEG triggers I need for my dot-probe task. I can get all the triggers to work except two of them- congrugentmarker and incongrugentmarker. I cannot get these markers to work in the lab (which uses Inquisit 5), but I am able to have the script successfully validate on my personal laptop using inquisit 6, although I do not have access to EEG equipment for my personal laptop to fully test if the script is successful with inquisit 6.

I also tried using code from this forum post as an example https://www.millisecond.com/forums/Topic21863.aspx but using my parameter /targetduration instead of a 0 to no effect.

Any help would be greatly appreciated!

Thank you.

<parameters>
/ fixationduration = 500
/ targetduration = 500
/ tp_isi = 0
/ probeduration = 1000
/ iti = 0
/ probe = ". ."
/ responsekey_left = 18
/ responsekey_right = 23
/ responsekey_left_label = "E"
/ responsekey_right_label = "I"

/ minimum_latency = 100

/ target_left_x = 35%
/ target_right_x = 65%
/ target_y = 50%
/ probe_y = 50%

/ fixationcross_height = 5%
/ probe_height = 5%
/ wordheight = 5%
</parameters>

<item threatpictures>
/ 1 = "01F_AN_O.bmp"
/ 2 = "02F_AN_O.bmp"
/ 3 = "05F_AN_C.bmp"
/ 4 = "07F_AN_C.bmp"
/ 5 = "09F_AN_C.bmp"
/ 6 = "13F_AN_O.bmp"
/ 7 = "14F_AN_O.bmp"
/ 8 = "19F_AN_O.bmp"
/ 9 = "20M_AN_O.bmp"
/ 10 = "21M_AN_O.bmp"
/ 11 = "22M_AN_C.bmp"
/ 12 = "26M_AN_C.bmp"
/ 13 = "27M_AN_O.bmp"
/ 14 = "36M_AN_O.bmp"
/ 15 = "37M_AN_C.bmp"
/ 16 = "40M_AN_O.bmp"
</item>

<item neutralpictures1>
/ 1 = "01F_NE_C.tiff"
/ 2 = "02F_NE_C.bmp"
/ 3 = "05F_NE_O.bmp"
/ 4 = "07F_NE_C.bmp"
/ 5 = "09F_NE_O.bmp"
/ 6 = "13F_NE_O.bmp"
/ 7 = "14F_NE_C.bmp"
/ 8 = "19F_NE_C.bmp"
/ 9 = "20M_NE_C.bmp"
/ 10 = "21M_NE_C.bmp"
/ 11 = "22M_NE_O.bmp"
/ 12 = "26M_NE_O.bmp"
/ 13 = "27M_NE_C.bmp"
/ 14 = "36M_NE_O.bmp"
/ 15 = "37M_NE_O.bmp"
/ 16 = "40M_NE_C.bmp"
</item>

<item neutralpictures2>
/ 1 = "22M_NE_O.bmp"
/ 2 = "21M_NE_C.bmp"
/ 3 = "20M_NE_C.bmp"
/ 4 = "26M_NE_O.bmp"
/ 5 = "01F_NE_C.tiff"
/ 6 = "05F_NE_O.bmp"
/ 7 = "02F_NE_C.bmp"
/ 8 = "07F_NE_C.bmp"
/ 9 = "36M_NE_O.bmp"
/ 10 = "40M_NE_C.bmp"
/ 11 = "37M_NE_O.bmp"
/ 12 = "27M_NE_C.bmp"
/ 13 = "14F_NE_C.bmp"
/ 14 = "09F_NE_O.bmp"
/ 15 = "19F_NE_C.bmp"
/ 16 = "13F_NE_O.bmp"
</item>

<item PracticeTargets>
/ 1 = "ONE"
/ 2 = "TWO"
/ 3 = "THREE"
/ 4 = "FOUR"
/ 5 = "FIVE"
/ 6 = "SIX"
/ 7 = "SEVEN"
/ 8 = "EIGHT"
/ 9 = "NINE"
/ 10 = "TEN"
</item>

<item PracticeComps>
/ 1 = "TWO"
/ 2 = "TEN"
/ 3 = "SEVEN"
/ 4 = "NINE"
/ 5 = "FOUR"
/ 6 = "ONE"
/ 7 = "EIGHT"
/ 8 = "THREE"
/ 9 = "FIVE"
/ 10 = "SIX"
</item>

<port congruentmarker>
/ port = COM4
/ subport = data
/ items = (1)
</port>
** S1**

<port incongruentmarker>
/ port = COM4
/ subport = data
/ items = (2)
</port>
** S2**

<port neutralmarker>
/ port = COM4
/ subport = data
/ items = (3)
</port>
** S3**

<port practicemarker>
/ port = COM4
/ subport = data
/ items = (4)
</port>
** S4**

<port markpress1>
/ port = COM4
/ subport = data
/ items = (16)
</port>
** R1**

<port markpress2>
/ port = COM4
/ subport = data
/ items = (32)
</port>
** R2**

<port markpress3>
/ port = COM4
/ subport = data
/ items = (48)
</port>
** R3**

<port markpress4>
/ port = COM4
/ subport = data
/ items = (64)
</port>
** R4**

<port correctmarker>
/ port = COM4
/ subport = data
/ items = (80)
</port>
** R5**

<port errormarker>
/ port = COM4
/ subport = data
/ items = (96)
</port>
** R6**
<list PracticeTarget_positions>
/ items = (1, 2)
/ replace = true
</list>

<trial threatening>
/ ontrialbegin = [
    values.valid = 0;
    values.validcorrect = 0;
    values.trialcount += 1;
    values.itemnumber = list.threateningTarget_itemnumbers.nextvalue;
    values.target_position = list.threateningTarget_positions.nextvalue;
    values.congruence = list.threateningTargetprobe_congruence.nextvalue;
    if (values.target_position == 1) {
        values.threat_x = parameters.target_left_x;
        values.neutral1_x = parameters.target_right_x;
    } else {
        values.threat_x = parameters.target_right_x;
        values.neutral1_x = parameters.target_left_x;
    };
    if (values.congruence == 1) {
        values.probe_x = values.threat_x;
        values.category = "threatening_CONGRUENT";
        trial.threatening.insertstimulustime(congruentmarker, 0);
    } else {
        values.probe_x = values.neutral1_x;
        values.category = "threatening_INCONGRUENT";
        trial.threatening.insertstimulustime(incongruentmarker, 0);
    };
    trial.threatening.insertstimulustime(text.fixation,(parameters.fixationduration + parameters.targetduration));
    trial.threatening.insertstimulustime(picture.threatpictures, parameters.fixationduration);
    trial.threatening.insertstimulustime(picture.neutralpictures1, parameters.fixationduration);
    trial.threatening.insertstimulustime(shape.eraser, (parameters.fixationduration + parameters.targetduration));
    trial.threatening.insertstimulustime(text.probe, (parameters.fixationduration + parameters.targetduration + parameters.tp_isi));
]
/ beginresponsetime = parameters.fixationduration + parameters.targetduration + parameters.tp_isi
/ responseinterrupt = immediate
/ validresponse = (parameters.responsekey_left, parameters.responsekey_right)
/ iscorrectresponse = [
(values.probe_x == parameters.target_right_x && trial.threatening.response == parameters.responsekey_right) ||
            (values.probe_x == parameters.target_left_x && trial.threatening.response == parameters.responsekey_left)
]
/ correctmessage = true(correctmarker,0)
/ errormessage = true(errormarker,0)
/ ontrialend = [
    trial.threatening.resetstimulusframes();
    values.threatpictures = picture.threatpictures.currentitem;
    values.neutralpictures1 = picture.neutralpictures1.currentitem;

    if (trial.threatening.latency >= parameters.minimum_latency){
        values.valid = 1;
        if (trial.threatening.correct) {
            values.validcorrect = 1;
            if (values.congruence == 1) {
                list.latencies_C.appenditem(trial.threatening.latency);
                list.latencies.appenditem(trial.threatening.latency);
                list.latencies_threat_neutral.appenditem(trial.threatening.latency);
            } else {
                list.latencies_IC.appenditem(trial.threatening.latency);
                list.latencies.appenditem(trial.threatening.latency);
                list.latencies_threat_neutral.appenditem(trial.threatening.latency)
            };
        };
    };

    list.accuracy.appenditem(trial.threatening.correct);
    list.accuracy_threat_neutral.appenditem(trial.threatening.correct);
    if (values.congruence == 1) {
        list.accuracy_C.appenditem(trial.threatening.correct);
    } else {
        list.accuracy_IC.appenditem(trial.threatening.correct);
    };
    ]


/ timeout = (parameters.fixationduration + parameters.targetduration + parameters.tp_isi + parameters.probeduration)
/ posttrialpause = parameters.iti
</trial>

<trial neutral>
/ ontrialbegin = [
    values.valid = 0;
    values.validcorrect = 0;
    values.trialcount += 1;
    values.category="neutral";
    values.itemnumber = list.neutralTarget_itemnumbers.nextvalue;
    values.target_position = list.neutralTarget_positions.nextvalue;
    values.congruence = list.neutralTargetprobe_congruence.nextvalue;
    if (values.target_position == 1) {
        values.neutral1_x = parameters.target_right_x;
        values.neutral2_x = parameters.target_left_x;
    } else {
        values.neutral2_x = parameters.target_right_x;
        values.neutral1_x = parameters.target_left_x;
    };
    if (values.congruence == 1) {
        values.probe_x = values.neutral1_x;
    } else {
        values.probe_x = values.neutral2_x;
    };
    trial.neutral.insertstimulustime(text.fixation,(parameters.fixationduration + parameters.targetduration));
    trial.neutral.insertstimulustime(picture.neutralpictures1, parameters.fixationduration);
    trial.neutral.insertstimulustime(picture.neutralpictures2, parameters.fixationduration);
    trial.neutral.insertstimulustime(shape.eraser, (parameters.fixationduration + parameters.targetduration));
    trial.neutral.insertstimulustime(text.probe, (parameters.fixationduration + parameters.targetduration + parameters.tp_isi));
]
/ stimulustimes = [0 = fixation, neutralmarker]
/ beginresponsetime = parameters.fixationduration + parameters.targetduration + parameters.tp_isi
/ responseinterrupt = immediate
/ validresponse = (parameters.responsekey_left, parameters.responsekey_right)
/ iscorrectresponse = [
(values.probe_x == parameters.target_left_x && trial.neutral.response == parameters.responsekey_left) ||
        (values.probe_x == parameters.target_right_x && trial.neutral.response == parameters.responsekey_right)
]
/ correctmessage = true(correctmarker,0)
/ errormessage = true(errormarker,0)
/ ontrialend = [
    trial.neutral.resetstimulusframes();
    values.neutralpictures1 = picture.neutralpictures1.currentitem;
    values.neutralpictures2 = picture.neutralpictures2.currentitem;

        if (trial.neutral.latency >= parameters.minimum_latency){
        values.valid = 1;
        if (trial.neutral.correct) {
            values.validcorrect = 1;
            if (values.congruence == 1) {
                list.latencies.appenditem(trial.neutral.latency);
                list.latencies_neutral.appenditem(trial.neutral.latency);
            } else {
                list.latencies.appenditem(trial.neutral.latency);
                list.latencies_threat_neutral.appenditem(trial.neutral.latency)
            };
        };
    };

    list.accuracy.appenditem(trial.neutral.correct);
    list.accuracy_neutral.appenditem(trial.neutral.correct);
    if (values.congruence == 1) {
        list.accuracy_neutral.appenditem(trial.neutral.correct);
    } else {
        list.accuracy_neutral.appenditem(trial.neutral.correct);
    };
    ]
/ timeout = (parameters.fixationduration + parameters.targetduration + parameters.tp_isi + parameters.probeduration)
/ posttrialpause = parameters.iti
</trial>

Note: selects randomly without replacement the probe position (1=left, 2 = right) for 10 practice trials
<list PracticeTargetprobe_congruence>
/ items = (1, 2, 1, 2, 1, 2, 1, 2, 1, 2)
/ replace = false
</list>

<trial Practice>
/ ontrialbegin = [
    values.category = "Practice";
    values.target_position = list.PracticeTarget_positions.nextvalue;
    values.congruence = list.PracticeTargetprobe_congruence.nextvalue;
    if (values.target_position == 1) {
        values.practice_x = parameters.target_right_x;
        values.practicecomp_x = parameters.target_left_x;
    } else {
        values.practice_x = parameters.target_left_x;
        values.practicecomp_x = parameters.target_right_x;
    };
    if (values.congruence == 1) {
        values.probe_x = values.practice_x;
    } else {
        values.probe_x = values.practicecomp_x;
    };
    trial.Practice.insertstimulustime(text.fixation,(parameters.fixationduration + parameters.targetduration));
    trial.Practice.insertstimulustime(text.PracticeTarget, parameters.fixationduration);
    trial.Practice.insertstimulustime(text.PracticeComp, parameters.fixationduration);
    trial.Practice.insertstimulustime(shape.eraser, (parameters.fixationduration + parameters.targetduration));
    trial.Practice.insertstimulustime(text.probe, (parameters.fixationduration + parameters.targetduration + parameters.TP_ISI));
]
/ stimulustimes = [0 = fixation, practicemarker]
/ beginresponsetime = parameters.fixationduration + parameters.targetduration + parameters.TP_ISI
/ responseinterrupt = immediate
/ validresponse = (parameters.responsekey_left, parameters.responsekey_right)
/ iscorrectresponse = [
    (values.probe_x == parameters.target_right_x && trial.Practice.response == parameters.responsekey_right) ||
            (values.probe_x == parameters.target_left_x && trial.Practice.response == parameters.responsekey_left)
]
/ correctmessage = true(correctmarker,0)
/ errormessage = true(errormarker,0)
/ ontrialend = [
    values.practice_word = text.PracticeTarget.currentitem;
    values.practice_comp_word = text.PracticeComp.currentitem;
    trial.Practice.resetstimulusframes();
]
/ timeout = (parameters.fixationduration + parameters.targetduration + parameters.tp_isi + parameters.probeduration)
/ posttrialpause = parameters.iti
</trial>

RE: EEG trigger issues

JM776 — Fri, 03 Jul 2020 05:32:10 GMT

Thanks Dave, can't believe I missed something so simple!

Cheers :)

RE: EEG trigger issues

Dave — Thu, 02 Jul 2020 11:08:38 GMT

+x[quote]

[b]JM776 - 7/2/2020[/b]
Hi there!

I was wondering if anyone could please help me out with a couple of EEG triggers I need for my dot-probe task. I can get all the triggers to work except two of them- congrugentmarker and incongrugentmarker. I cannot get these markers to work in the lab (which uses Inquisit 5), but I am able to have the script successfully validate on my personal laptop using inquisit 6, although I do not have access to EEG equipment for my personal laptop to fully test if the script is successful with inquisit 6.

I also tried using code from this forum post as an example https://www.millisecond.com/forums/Topic21863.aspx but using my parameter /targetduration instead of a 0 to no effect.

Any help would be greatly appreciated!

Thank you.

<parameters>
/ fixationduration = 500
/ targetduration = 500
/ tp_isi = 0
/ probeduration = 1000
/ iti = 0
/ probe = ". ."
/ responsekey_left = 18
/ responsekey_right = 23
/ responsekey_left_label = "E"
/ responsekey_right_label = "I"

/ minimum_latency = 100

/ target_left_x = 35%
/ target_right_x = 65%
/ target_y = 50%
/ probe_y = 50%

/ fixationcross_height = 5%
/ probe_height = 5%
/ wordheight = 5%
</parameters>

<item threatpictures>
/ 1 = "01F_AN_O.bmp"
/ 2 = "02F_AN_O.bmp"
/ 3 = "05F_AN_C.bmp"
/ 4 = "07F_AN_C.bmp"
/ 5 = "09F_AN_C.bmp"
/ 6 = "13F_AN_O.bmp"
/ 7 = "14F_AN_O.bmp"
/ 8 = "19F_AN_O.bmp"
/ 9 = "20M_AN_O.bmp"
/ 10 = "21M_AN_O.bmp"
/ 11 = "22M_AN_C.bmp"
/ 12 = "26M_AN_C.bmp"
/ 13 = "27M_AN_O.bmp"
/ 14 = "36M_AN_O.bmp"
/ 15 = "37M_AN_C.bmp"
/ 16 = "40M_AN_O.bmp"
</item>

<item neutralpictures1>
/ 1 = "01F_NE_C.tiff"
/ 2 = "02F_NE_C.bmp"
/ 3 = "05F_NE_O.bmp"
/ 4 = "07F_NE_C.bmp"
/ 5 = "09F_NE_O.bmp"
/ 6 = "13F_NE_O.bmp"
/ 7 = "14F_NE_C.bmp"
/ 8 = "19F_NE_C.bmp"
/ 9 = "20M_NE_C.bmp"
/ 10 = "21M_NE_C.bmp"
/ 11 = "22M_NE_O.bmp"
/ 12 = "26M_NE_O.bmp"
/ 13 = "27M_NE_C.bmp"
/ 14 = "36M_NE_O.bmp"
/ 15 = "37M_NE_O.bmp"
/ 16 = "40M_NE_C.bmp"
</item>

<item neutralpictures2>
/ 1 = "22M_NE_O.bmp"
/ 2 = "21M_NE_C.bmp"
/ 3 = "20M_NE_C.bmp"
/ 4 = "26M_NE_O.bmp"
/ 5 = "01F_NE_C.tiff"
/ 6 = "05F_NE_O.bmp"
/ 7 = "02F_NE_C.bmp"
/ 8 = "07F_NE_C.bmp"
/ 9 = "36M_NE_O.bmp"
/ 10 = "40M_NE_C.bmp"
/ 11 = "37M_NE_O.bmp"
/ 12 = "27M_NE_C.bmp"
/ 13 = "14F_NE_C.bmp"
/ 14 = "09F_NE_O.bmp"
/ 15 = "19F_NE_C.bmp"
/ 16 = "13F_NE_O.bmp"
</item>

<item PracticeTargets>
/ 1 = "ONE"
/ 2 = "TWO"
/ 3 = "THREE"
/ 4 = "FOUR"
/ 5 = "FIVE"
/ 6 = "SIX"
/ 7 = "SEVEN"
/ 8 = "EIGHT"
/ 9 = "NINE"
/ 10 = "TEN"
</item>

<item PracticeComps>
/ 1 = "TWO"
/ 2 = "TEN"
/ 3 = "SEVEN"
/ 4 = "NINE"
/ 5 = "FOUR"
/ 6 = "ONE"
/ 7 = "EIGHT"
/ 8 = "THREE"
/ 9 = "FIVE"
/ 10 = "SIX"
</item>

<port congruentmarker>
/ port = COM4
/ subport = data
/ items = (1)
</port>
** S1**

<port incongruentmarker>
/ port = COM4
/ subport = data
/ items = (2)
</port>
** S2**

<port neutralmarker>
/ port = COM4
/ subport = data
/ items = (3)
</port>
** S3**

<port practicemarker>
/ port = COM4
/ subport = data
/ items = (4)
</port>
** S4**

<port markpress1>
/ port = COM4
/ subport = data
/ items = (16)
</port>
** R1**

<port markpress2>
/ port = COM4
/ subport = data
/ items = (32)
</port>
** R2**

<port markpress3>
/ port = COM4
/ subport = data
/ items = (48)
</port>
** R3**

<port markpress4>
/ port = COM4
/ subport = data
/ items = (64)
</port>
** R4**

<port correctmarker>
/ port = COM4
/ subport = data
/ items = (80)
</port>
** R5**

<port errormarker>
/ port = COM4
/ subport = data
/ items = (96)
</port>
** R6**
<list PracticeTarget_positions>
/ items = (1, 2)
/ replace = true
</list>

<trial threatening>
/ ontrialbegin = [
    values.valid = 0;
    values.validcorrect = 0;
    values.trialcount += 1;
    values.itemnumber = list.threateningTarget_itemnumbers.nextvalue;
    values.target_position = list.threateningTarget_positions.nextvalue;
    values.congruence = list.threateningTargetprobe_congruence.nextvalue;
    if (values.target_position == 1) {
        values.threat_x = parameters.target_left_x;
        values.neutral1_x = parameters.target_right_x;
    } else {
        values.threat_x = parameters.target_right_x;
        values.neutral1_x = parameters.target_left_x;
    };
    if (values.congruence == 1) {
        values.probe_x = values.threat_x;
        values.category = "threatening_CONGRUENT";
        trial.threatening.insertstimulustime(congruentmarker, 0);
    } else {
        values.probe_x = values.neutral1_x;
        values.category = "threatening_INCONGRUENT";
        trial.threatening.insertstimulustime(incongruentmarker, 0);
    };
    trial.threatening.insertstimulustime(text.fixation,(parameters.fixationduration + parameters.targetduration));
    trial.threatening.insertstimulustime(picture.threatpictures, parameters.fixationduration);
    trial.threatening.insertstimulustime(picture.neutralpictures1, parameters.fixationduration);
    trial.threatening.insertstimulustime(shape.eraser, (parameters.fixationduration + parameters.targetduration));
    trial.threatening.insertstimulustime(text.probe, (parameters.fixationduration + parameters.targetduration + parameters.tp_isi));
]
/ beginresponsetime = parameters.fixationduration + parameters.targetduration + parameters.tp_isi
/ responseinterrupt = immediate
/ validresponse = (parameters.responsekey_left, parameters.responsekey_right)
/ iscorrectresponse = [
(values.probe_x == parameters.target_right_x && trial.threatening.response == parameters.responsekey_right) ||
            (values.probe_x == parameters.target_left_x && trial.threatening.response == parameters.responsekey_left)
]
/ correctmessage = true(correctmarker,0)
/ errormessage = true(errormarker,0)
/ ontrialend = [
    trial.threatening.resetstimulusframes();
    values.threatpictures = picture.threatpictures.currentitem;
    values.neutralpictures1 = picture.neutralpictures1.currentitem;

    if (trial.threatening.latency >= parameters.minimum_latency){
        values.valid = 1;
        if (trial.threatening.correct) {
            values.validcorrect = 1;
            if (values.congruence == 1) {
                list.latencies_C.appenditem(trial.threatening.latency);
                list.latencies.appenditem(trial.threatening.latency);
                list.latencies_threat_neutral.appenditem(trial.threatening.latency);
            } else {
                list.latencies_IC.appenditem(trial.threatening.latency);
                list.latencies.appenditem(trial.threatening.latency);
                list.latencies_threat_neutral.appenditem(trial.threatening.latency)
            };
        };
    };

    list.accuracy.appenditem(trial.threatening.correct);
    list.accuracy_threat_neutral.appenditem(trial.threatening.correct);
    if (values.congruence == 1) {
        list.accuracy_C.appenditem(trial.threatening.correct);
    } else {
        list.accuracy_IC.appenditem(trial.threatening.correct);
    };
    ]


/ timeout = (parameters.fixationduration + parameters.targetduration + parameters.tp_isi + parameters.probeduration)
/ posttrialpause = parameters.iti
</trial>

<trial neutral>
/ ontrialbegin = [
    values.valid = 0;
    values.validcorrect = 0;
    values.trialcount += 1;
    values.category="neutral";
    values.itemnumber = list.neutralTarget_itemnumbers.nextvalue;
    values.target_position = list.neutralTarget_positions.nextvalue;
    values.congruence = list.neutralTargetprobe_congruence.nextvalue;
    if (values.target_position == 1) {
        values.neutral1_x = parameters.target_right_x;
        values.neutral2_x = parameters.target_left_x;
    } else {
        values.neutral2_x = parameters.target_right_x;
        values.neutral1_x = parameters.target_left_x;
    };
    if (values.congruence == 1) {
        values.probe_x = values.neutral1_x;
    } else {
        values.probe_x = values.neutral2_x;
    };
    trial.neutral.insertstimulustime(text.fixation,(parameters.fixationduration + parameters.targetduration));
    trial.neutral.insertstimulustime(picture.neutralpictures1, parameters.fixationduration);
    trial.neutral.insertstimulustime(picture.neutralpictures2, parameters.fixationduration);
    trial.neutral.insertstimulustime(shape.eraser, (parameters.fixationduration + parameters.targetduration));
    trial.neutral.insertstimulustime(text.probe, (parameters.fixationduration + parameters.targetduration + parameters.tp_isi));
]
/ stimulustimes = [0 = fixation, neutralmarker]
/ beginresponsetime = parameters.fixationduration + parameters.targetduration + parameters.tp_isi
/ responseinterrupt = immediate
/ validresponse = (parameters.responsekey_left, parameters.responsekey_right)
/ iscorrectresponse = [
(values.probe_x == parameters.target_left_x && trial.neutral.response == parameters.responsekey_left) ||
        (values.probe_x == parameters.target_right_x && trial.neutral.response == parameters.responsekey_right)
]
/ correctmessage = true(correctmarker,0)
/ errormessage = true(errormarker,0)
/ ontrialend = [
    trial.neutral.resetstimulusframes();
    values.neutralpictures1 = picture.neutralpictures1.currentitem;
    values.neutralpictures2 = picture.neutralpictures2.currentitem;

        if (trial.neutral.latency >= parameters.minimum_latency){
        values.valid = 1;
        if (trial.neutral.correct) {
            values.validcorrect = 1;
            if (values.congruence == 1) {
                list.latencies.appenditem(trial.neutral.latency);
                list.latencies_neutral.appenditem(trial.neutral.latency);
            } else {
                list.latencies.appenditem(trial.neutral.latency);
                list.latencies_threat_neutral.appenditem(trial.neutral.latency)
            };
        };
    };

    list.accuracy.appenditem(trial.neutral.correct);
    list.accuracy_neutral.appenditem(trial.neutral.correct);
    if (values.congruence == 1) {
        list.accuracy_neutral.appenditem(trial.neutral.correct);
    } else {
        list.accuracy_neutral.appenditem(trial.neutral.correct);
    };
    ]
/ timeout = (parameters.fixationduration + parameters.targetduration + parameters.tp_isi + parameters.probeduration)
/ posttrialpause = parameters.iti
</trial>

Note: selects randomly without replacement the probe position (1=left, 2 = right) for 10 practice trials
<list PracticeTargetprobe_congruence>
/ items = (1, 2, 1, 2, 1, 2, 1, 2, 1, 2)
/ replace = false
</list>

<trial Practice>
/ ontrialbegin = [
    values.category = "Practice";
    values.target_position = list.PracticeTarget_positions.nextvalue;
    values.congruence = list.PracticeTargetprobe_congruence.nextvalue;
    if (values.target_position == 1) {
        values.practice_x = parameters.target_right_x;
        values.practicecomp_x = parameters.target_left_x;
    } else {
        values.practice_x = parameters.target_left_x;
        values.practicecomp_x = parameters.target_right_x;
    };
    if (values.congruence == 1) {
        values.probe_x = values.practice_x;
    } else {
        values.probe_x = values.practicecomp_x;
    };
    trial.Practice.insertstimulustime(text.fixation,(parameters.fixationduration + parameters.targetduration));
    trial.Practice.insertstimulustime(text.PracticeTarget, parameters.fixationduration);
    trial.Practice.insertstimulustime(text.PracticeComp, parameters.fixationduration);
    trial.Practice.insertstimulustime(shape.eraser, (parameters.fixationduration + parameters.targetduration));
    trial.Practice.insertstimulustime(text.probe, (parameters.fixationduration + parameters.targetduration + parameters.TP_ISI));
]
/ stimulustimes = [0 = fixation, practicemarker]
/ beginresponsetime = parameters.fixationduration + parameters.targetduration + parameters.TP_ISI
/ responseinterrupt = immediate
/ validresponse = (parameters.responsekey_left, parameters.responsekey_right)
/ iscorrectresponse = [
    (values.probe_x == parameters.target_right_x && trial.Practice.response == parameters.responsekey_right) ||
            (values.probe_x == parameters.target_left_x && trial.Practice.response == parameters.responsekey_left)
]
/ correctmessage = true(correctmarker,0)
/ errormessage = true(errormarker,0)
/ ontrialend = [
    values.practice_word = text.PracticeTarget.currentitem;
    values.practice_comp_word = text.PracticeComp.currentitem;
    trial.Practice.resetstimulusframes();
]
/ timeout = (parameters.fixationduration + parameters.targetduration + parameters.tp_isi + parameters.probeduration)
/ posttrialpause = parameters.iti
</trial>

[/quote]

if (values.congruence == 1) {
   values.probe_x = values.threat_x;
   values.category = "threatening_CONGRUENT";
   trial.threatening.insertstimulustime(congruentmarker, 0);
} else {
   values.probe_x = values.neutral1_x;
   values.category = "threatening_INCONGRUENT";
   trial.threatening.insertstimulustime(incongruentmarker, 0);
};

is wrong syntax-wise, and ought to read

if (values.congruence == 1) {
values.probe_x = values.threat_x;
values.category = "threatening_CONGRUENT";
trial.threatening.insertstimulustime(port.congruentmarker, 0);
} else {
values.probe_x = values.neutral1_x;
values.category = "threatening_INCONGRUENT";
trial.threatening.insertstimulustime(port.incongruentmarker, 0);
};