How do I create markers in eye tracking data for survey pages?


How do I create markers in eye tracking data for survey pages?

Author
Message
amomen425
amomen425
New Member
New Member (20 reputation)New Member (20 reputation)New Member (20 reputation)New Member (20 reputation)New Member (20 reputation)New Member (20 reputation)New Member (20 reputation)New Member (20 reputation)New Member (20 reputation)

Group: Forum Members
Posts: 6, Visits: 44
I am having trouble figuring out how to implement something which I thought would be relatively easy. Basically, I am having participants take a survey and am tracking their eye movements using the tobii plug in. Since there are multiple survey pages, I would like to know the survey page that corresponds to the eye tracking data. As you can see from the code below, I have tried to implements 'markers', but it hasn't worked. Could anyone offer any insight?

<surveypage TS_AVC_1_A>
/ questions = [1 = Intentionality_AV_1]
/ showpagenumbers = false
/ showquestionnumbers = false
/ branch = [surveypage.TS_AVC_1_B]
/ recorddata = true
/ datastreams = eyetracker
/ screencapture = true
/ ontrialbegin = [
values.marker = "1";
]
/ stimulustimes = [0 = Marker]
</surveypage>

<surveypage TS_AVC_1_B>
/ questions = [1= Anger_instr_AV_1, Anger_AV_1, Irritability_AV_1]
/ showpagenumbers = false
/ showquestionnumbers = false
/ branch = [surveypage.TS_AVC_1_C]
/ recorddata = true
/ datastreams = eyetracker
/ screencapture = true
/ ontrialbegin = [
values.marker = "2";
]
/ stimulustimes = [0 = Marker]
</surveypage>
Dave
Dave
Supreme Being
Supreme Being (512K reputation)Supreme Being (512K reputation)Supreme Being (512K reputation)Supreme Being (512K reputation)Supreme Being (512K reputation)Supreme Being (512K reputation)Supreme Being (512K reputation)Supreme Being (512K reputation)Supreme Being (512K reputation)

Group: Administrators
Posts: 9.2K, Visits: 39K
amomen425 - Monday, November 5, 2018
I am having trouble figuring out how to implement something which I thought would be relatively easy. Basically, I am having participants take a survey and am tracking their eye movements using the tobii plug in. Since there are multiple survey pages, I would like to know the survey page that corresponds to the eye tracking data. As you can see from the code below, I have tried to implements 'markers', but it hasn't worked. Could anyone offer any insight?

<surveypage TS_AVC_1_A>
/ questions = [1 = Intentionality_AV_1]
/ showpagenumbers = false
/ showquestionnumbers = false
/ branch = [surveypage.TS_AVC_1_B]
/ recorddata = true
/ datastreams = eyetracker
/ screencapture = true
/ ontrialbegin = [
values.marker = "1";
]
/ stimulustimes = [0 = Marker]
</surveypage>

<surveypage TS_AVC_1_B>
/ questions = [1= Anger_instr_AV_1, Anger_AV_1, Irritability_AV_1]
/ showpagenumbers = false
/ showquestionnumbers = false
/ branch = [surveypage.TS_AVC_1_C]
/ recorddata = true
/ datastreams = eyetracker
/ screencapture = true
/ ontrialbegin = [
values.marker = "2";
]
/ stimulustimes = [0 = Marker]
</surveypage>

At a minimum, you need to share the code for the "marker" element as well as how you invoke those surveypages, e.g. are they run in a <block> or a <survey>? As for other supplemental information that would be useful:
- Which Inquisit version are you currently using (Help -> About?)
- Is the gaze data otherwise written properly?
- What is the exact specification of your <eyetracker> element?
- Have you followed the instructions in https://www.millisecond.com/support/docs/v5/html/howto/sendmarkerstotobii.htm to set up the markers?

amomen425
amomen425
New Member
New Member (20 reputation)New Member (20 reputation)New Member (20 reputation)New Member (20 reputation)New Member (20 reputation)New Member (20 reputation)New Member (20 reputation)New Member (20 reputation)New Member (20 reputation)

Group: Forum Members
Posts: 6, Visits: 44
Dave - Monday, November 5, 2018
amomen425 - Monday, November 5, 2018
I am having trouble figuring out how to implement something which I thought would be relatively easy. Basically, I am having participants take a survey and am tracking their eye movements using the tobii plug in. Since there are multiple survey pages, I would like to know the survey page that corresponds to the eye tracking data. As you can see from the code below, I have tried to implements 'markers', but it hasn't worked. Could anyone offer any insight?

<surveypage TS_AVC_1_A>
/ questions = [1 = Intentionality_AV_1]
/ showpagenumbers = false
/ showquestionnumbers = false
/ branch = [surveypage.TS_AVC_1_B]
/ recorddata = true
/ datastreams = eyetracker
/ screencapture = true
/ ontrialbegin = [
values.marker = "1";
]
/ stimulustimes = [0 = Marker]
</surveypage>

<surveypage TS_AVC_1_B>
/ questions = [1= Anger_instr_AV_1, Anger_AV_1, Irritability_AV_1]
/ showpagenumbers = false
/ showquestionnumbers = false
/ branch = [surveypage.TS_AVC_1_C]
/ recorddata = true
/ datastreams = eyetracker
/ screencapture = true
/ ontrialbegin = [
values.marker = "2";
]
/ stimulustimes = [0 = Marker]
</surveypage>

At a minimum, you need to share the code for the "marker" element as well as how you invoke those surveypages, e.g. are they run in a <block> or a <survey>? As for other supplemental information that would be useful:
- Which Inquisit version are you currently using (Help -> About?)
- Is the gaze data otherwise written properly?
- What is the exact specification of your <eyetracker> element?
- Have you followed the instructions in https://www.millisecond.com/support/docs/v5/html/howto/sendmarkerstotobii.htm to set up the markers?
-My Inquisit version is: 5.0.14.0
-Not sure what you mean by 'is the gaze data is written properly otherwise'. I just want the participant's gaze data and creating the area's of interest outside of Inquisit using R Software.
-I have followed the instructions from that page. However, I am new to programming and although I tried my best to implement the relevant portions, not sure I got it right.

Here is the code for the marker and the eye tracking element..
<eyetracker>
/ plugin = "tobii"
</eyetracker>

<port Marker>
/ port = eyetracker
/ items = (0)
</port>

Here is code showing how the surveypages are invoked (with a survey and not a block)

<radiobuttons Intentionality_AV_1>
/ caption = "<%parameters.TS_AVC_1%>"
/ subcaption = "<%parameters.AV_Question_A%>"
/ options = ("a) It intentionally did this to mess up the traffic.
","b) It did not mean anything wrong, just a mistake.")
/ required = false
/ orientation = vertical
/ position = (100px, 100px)
</radiobuttons>
<surveypage TS_AVC_1_A>
/ questions = [1 = Intentionality_AV_1]
/ showpagenumbers = false
/ showquestionnumbers = false
/ branch = [surveypage.TS_AVC_1_B]
/ recorddata = true
/ datastreams = eyetracker
/ screencapture = true
/ ontrialbegin = [
values.marker = "";
values.marker = concat(values.marker, "1");
]
/ stimulustimes = [0 = Marker]
</surveypage>



Dave
Dave
Supreme Being
Supreme Being (512K reputation)Supreme Being (512K reputation)Supreme Being (512K reputation)Supreme Being (512K reputation)Supreme Being (512K reputation)Supreme Being (512K reputation)Supreme Being (512K reputation)Supreme Being (512K reputation)Supreme Being (512K reputation)

Group: Administrators
Posts: 9.2K, Visits: 39K
amomen425 - Tuesday, November 6, 2018
Dave - Monday, November 5, 2018
amomen425 - Monday, November 5, 2018
I am having trouble figuring out how to implement something which I thought would be relatively easy. Basically, I am having participants take a survey and am tracking their eye movements using the tobii plug in. Since there are multiple survey pages, I would like to know the survey page that corresponds to the eye tracking data. As you can see from the code below, I have tried to implements 'markers', but it hasn't worked. Could anyone offer any insight?

<surveypage TS_AVC_1_A>
/ questions = [1 = Intentionality_AV_1]
/ showpagenumbers = false
/ showquestionnumbers = false
/ branch = [surveypage.TS_AVC_1_B]
/ recorddata = true
/ datastreams = eyetracker
/ screencapture = true
/ ontrialbegin = [
values.marker = "1";
]
/ stimulustimes = [0 = Marker]
</surveypage>

<surveypage TS_AVC_1_B>
/ questions = [1= Anger_instr_AV_1, Anger_AV_1, Irritability_AV_1]
/ showpagenumbers = false
/ showquestionnumbers = false
/ branch = [surveypage.TS_AVC_1_C]
/ recorddata = true
/ datastreams = eyetracker
/ screencapture = true
/ ontrialbegin = [
values.marker = "2";
]
/ stimulustimes = [0 = Marker]
</surveypage>

At a minimum, you need to share the code for the "marker" element as well as how you invoke those surveypages, e.g. are they run in a <block> or a <survey>? As for other supplemental information that would be useful:
- Which Inquisit version are you currently using (Help -> About?)
- Is the gaze data otherwise written properly?
- What is the exact specification of your <eyetracker> element?
- Have you followed the instructions in https://www.millisecond.com/support/docs/v5/html/howto/sendmarkerstotobii.htm to set up the markers?
-My Inquisit version is: 5.0.14.0
-Not sure what you mean by 'is the gaze data is written properly otherwise'. I just want the participant's gaze data and creating the area's of interest outside of Inquisit using R Software.
-I have followed the instructions from that page. However, I am new to programming and although I tried my best to implement the relevant portions, not sure I got it right.

Here is the code for the marker and the eye tracking element..
<eyetracker>
/ plugin = "tobii"
</eyetracker>

<port Marker>
/ port = eyetracker
/ items = (0)
</port>

Here is code showing how the surveypages are invoked (with a survey and not a block)

<radiobuttons Intentionality_AV_1>
/ caption = "<%parameters.TS_AVC_1%>"
/ subcaption = "<%parameters.AV_Question_A%>"
/ options = ("a) It intentionally did this to mess up the traffic.
","b) It did not mean anything wrong, just a mistake.")
/ required = false
/ orientation = vertical
/ position = (100px, 100px)
</radiobuttons>
<surveypage TS_AVC_1_A>
/ questions = [1 = Intentionality_AV_1]
/ showpagenumbers = false
/ showquestionnumbers = false
/ branch = [surveypage.TS_AVC_1_B]
/ recorddata = true
/ datastreams = eyetracker
/ screencapture = true
/ ontrialbegin = [
values.marker = "";
values.marker = concat(values.marker, "1");
]
/ stimulustimes = [0 = Marker]
</surveypage>



> -Not sure what you mean by 'is the gaze data is written properly otherwise'.

What I mean is: When you execute the script, do you get a gaze data file _at all_? This goes to whether there is a general problem, apart from not getting markers into the stream.

Apart from that, there is something missing from your code. At no point to you actually _set_ the <port> element to the marker _value_. The marker remains 0 -- i.e. no signal -- throughout.

<surveypage Intentionality_AV_1>
...
/ ontrialbegin = [
values.marker = "";
values.marker = concat(values.marker, "1");

]
/ stimulustimes = [0 = Marker]
</surveypage>

Here you set values.marker to some value, albeit in an unncessarily complicated fashion. What you're not doing is setting port.marker to values.marker, i.e. this part from the documentation "how to":

<trial SodaBeer> /*trial to present soda can left and beer can right
/ontrialbegin = [
values.marker = "";/*reset marker value
values.marker = concat(values.marker, "01");/*add '01' for soda is left
values.marker = concat(values.marker, picture.sodaLeft.currentitemnumber); /* add current itemnumber for left image
values.marker = concat(values.marker, "02");/*add '02' for beer is right
values.marker = concat(values.marker, picture.beerRight.currentitemnumber);/* add current itemnumber for right image
port.dynamMarker.setitem(values.marker, 1);/*set the item for the marker you want to send
]
/stimulustimes = [0 = sodaLeft, beerRight, dynamMarker] /*sends 015027 at stimulusonset

</trial>

In short, to actually send markers, you need to modify your code like so:

<port Marker>
/ port = eyetracker
/ items = (0)
</port>

<radiobuttons Intentionality_AV_1>
/ caption = "<%parameters.TS_AVC_1%>"
/ subcaption = "<%parameters.AV_Question_A%>"
/ options = ("a) It intentionally did this to mess up the traffic.
","b) It did not mean anything wrong, just a mistake.")
/ required = false
/ orientation = vertical
/ position = (100px, 100px)
</radiobuttons>
<surveypage TS_AVC_1_A>
/ questions = [1 = Intentionality_AV_1]
/ showpagenumbers = false
/ showquestionnumbers = false
/ branch = [surveypage.TS_AVC_1_B]
/ recorddata = true
/ datastreams = eyetracker
/ screencapture = true
/ ontrialbegin = [
values.marker = "1";
port.Marker.setitem(values.marker, 1);
]
/ stimulustimes = [0 = Marker]
</surveypage>

amomen425
amomen425
New Member
New Member (20 reputation)New Member (20 reputation)New Member (20 reputation)New Member (20 reputation)New Member (20 reputation)New Member (20 reputation)New Member (20 reputation)New Member (20 reputation)New Member (20 reputation)

Group: Forum Members
Posts: 6, Visits: 44
Dave - Tuesday, November 6, 2018
amomen425 - Tuesday, November 6, 2018
Dave - Monday, November 5, 2018
amomen425 - Monday, November 5, 2018
I am having trouble figuring out how to implement something which I thought would be relatively easy. Basically, I am having participants take a survey and am tracking their eye movements using the tobii plug in. Since there are multiple survey pages, I would like to know the survey page that corresponds to the eye tracking data. As you can see from the code below, I have tried to implements 'markers', but it hasn't worked. Could anyone offer any insight?

<surveypage TS_AVC_1_A>
/ questions = [1 = Intentionality_AV_1]
/ showpagenumbers = false
/ showquestionnumbers = false
/ branch = [surveypage.TS_AVC_1_B]
/ recorddata = true
/ datastreams = eyetracker
/ screencapture = true
/ ontrialbegin = [
values.marker = "1";
]
/ stimulustimes = [0 = Marker]
</surveypage>

<surveypage TS_AVC_1_B>
/ questions = [1= Anger_instr_AV_1, Anger_AV_1, Irritability_AV_1]
/ showpagenumbers = false
/ showquestionnumbers = false
/ branch = [surveypage.TS_AVC_1_C]
/ recorddata = true
/ datastreams = eyetracker
/ screencapture = true
/ ontrialbegin = [
values.marker = "2";
]
/ stimulustimes = [0 = Marker]
</surveypage>

At a minimum, you need to share the code for the "marker" element as well as how you invoke those surveypages, e.g. are they run in a <block> or a <survey>? As for other supplemental information that would be useful:
- Which Inquisit version are you currently using (Help -> About?)
- Is the gaze data otherwise written properly?
- What is the exact specification of your <eyetracker> element?
- Have you followed the instructions in https://www.millisecond.com/support/docs/v5/html/howto/sendmarkerstotobii.htm to set up the markers?
-My Inquisit version is: 5.0.14.0
-Not sure what you mean by 'is the gaze data is written properly otherwise'. I just want the participant's gaze data and creating the area's of interest outside of Inquisit using R Software.
-I have followed the instructions from that page. However, I am new to programming and although I tried my best to implement the relevant portions, not sure I got it right.

Here is the code for the marker and the eye tracking element..
<eyetracker>
/ plugin = "tobii"
</eyetracker>

<port Marker>
/ port = eyetracker
/ items = (0)
</port>

Here is code showing how the surveypages are invoked (with a survey and not a block)

<radiobuttons Intentionality_AV_1>
/ caption = "<%parameters.TS_AVC_1%>"
/ subcaption = "<%parameters.AV_Question_A%>"
/ options = ("a) It intentionally did this to mess up the traffic.
","b) It did not mean anything wrong, just a mistake.")
/ required = false
/ orientation = vertical
/ position = (100px, 100px)
</radiobuttons>
<surveypage TS_AVC_1_A>
/ questions = [1 = Intentionality_AV_1]
/ showpagenumbers = false
/ showquestionnumbers = false
/ branch = [surveypage.TS_AVC_1_B]
/ recorddata = true
/ datastreams = eyetracker
/ screencapture = true
/ ontrialbegin = [
values.marker = "";
values.marker = concat(values.marker, "1");
]
/ stimulustimes = [0 = Marker]
</surveypage>



> -Not sure what you mean by 'is the gaze data is written properly otherwise'.

What I mean is: When you execute the script, do you get a gaze data file _at all_? This goes to whether there is a general problem, apart from not getting markers into the stream.

Apart from that, there is something missing from your code. At no point to you actually _set_ the <port> element to the marker _value_. The marker remains 0 -- i.e. no signal -- throughout.

<surveypage Intentionality_AV_1>
...
/ ontrialbegin = [
values.marker = "";
values.marker = concat(values.marker, "1");

]
/ stimulustimes = [0 = Marker]
</surveypage>

Here you set values.marker to some value, albeit in an unncessarily complicated fashion. What you're not doing is setting port.marker to values.marker, i.e. this part from the documentation "how to":

<trial SodaBeer> /*trial to present soda can left and beer can right
/ontrialbegin = [
values.marker = "";/*reset marker value
values.marker = concat(values.marker, "01");/*add '01' for soda is left
values.marker = concat(values.marker, picture.sodaLeft.currentitemnumber); /* add current itemnumber for left image
values.marker = concat(values.marker, "02");/*add '02' for beer is right
values.marker = concat(values.marker, picture.beerRight.currentitemnumber);/* add current itemnumber for right image
port.dynamMarker.setitem(values.marker, 1);/*set the item for the marker you want to send
]
/stimulustimes = [0 = sodaLeft, beerRight, dynamMarker] /*sends 015027 at stimulusonset

</trial>

In short, to actually send markers, you need to modify your code like so:

<port Marker>
/ port = eyetracker
/ items = (0)
</port>

<radiobuttons Intentionality_AV_1>
/ caption = "<%parameters.TS_AVC_1%>"
/ subcaption = "<%parameters.AV_Question_A%>"
/ options = ("a) It intentionally did this to mess up the traffic.
","b) It did not mean anything wrong, just a mistake.")
/ required = false
/ orientation = vertical
/ position = (100px, 100px)
</radiobuttons>
<surveypage TS_AVC_1_A>
/ questions = [1 = Intentionality_AV_1]
/ showpagenumbers = false
/ showquestionnumbers = false
/ branch = [surveypage.TS_AVC_1_B]
/ recorddata = true
/ datastreams = eyetracker
/ screencapture = true
/ ontrialbegin = [
values.marker = "1";
port.Marker.setitem(values.marker, 1);
]
/ stimulustimes = [0 = Marker]
</surveypage>

This was super helpful. thanks!
GO


Reading This Topic


Login
Existing Account
Email Address:


Password:


Social Logins

Select a Forum....






Millisecond Forums


Search