Hello all,
I have a question related to how to get data saved when using an eye tracker with a trial that uses the 'keyboard' input method. I am wording the question like this because:
I have downloaded the "kittensorpuppies" sample script and note that all eye tracker data is saved to separate files without being specifically specified in the data section of the script. In my script, however, I am using 'keyboard' as the input method (as opposed to "eyetracker" and am getting no such data saved even though the eye tracker is running during the experiment/trial.
I am guessing that I need to specify all of the desired data:

markerleftpixelx         leftpixely         rightpixelx       rightpixely       focuspixelx      focuspixely      leftgazex         leftgazey         leftgazez            rightgazex       rightgazey       rightgazez       lefteyex           lefteyey           lefteyez           righteyex         righteyey         righteyez            leftpupilwidthleftpupilheightrightpupilwidth           rightpupilheight          leftvalidity       rightvalidity     hasleftfixationleftfixationpixelx            leftfixationpixely         hasrightfixation           rightfixationpixelx       rightfixationpixely       hasfocusfixation         focusfixationpixelx            focusfixationpixely

in the script if I want to have it saved to a file...? Thought I'd ask prior to hacking up my script...sorry for the laziness.

Jason

You can do both. When inputdevice is keyboard and you want to have eyetracker data in a separate data file, then defining the <eyetracker> element and /datastreams = eyetracker in the <trial>, <block> and/or <expt> elements during which you wish to acquire tracking data will work fine. If there are <trial> elements you wish to exclude, you can set /datastreams = false, and then no tracking data will be acquired during those trials. Hope this helps.

Dave,

Thanks. As always, you are an enourmous help. I've managed to make another baby step in the correct direction but I'm afraid I'm not grasping the process of 1. marking specific points in the data stream with the eye tracker and 2. how to obtain detailed gaze data (x, y point, time stamps, etc.) from the tracker. Attached is my work in progress script. I'm wanting to obtain detailed gaze information for each of the trials and have started experimenting primarily with the "traning session" trail. I want to know:

Where participants are looking when mypicturetrainT and mypicturetrainF appear. I think (hope) that if I can get this working properly on one trial I should be able to then apply my understanding to other areas in the script (fingers crossed).

Thanks in advance for any help and suggestions you are able to provide.

Regards

Jason

P.S. I was unable to attach the entire script directory (including jpeg and wav files) due to a size limitation so I am attaching the script only here.

Dave,

Thanks. Yes, it was tremendously helpful. As always, thank you for your amazing support. I ended up deleting the /columns line and, as a result, am now getting even more data than is introduced on the page you provided. For example, I have [hasleftfixation x and y, hasrightfixation x any y, hasfocusfixation, etc.].

My next dilemma, moving forward, is how to match up the data I'm obtaining, temporally, between response data recorded and the data I have from the eyetracker. I'm guessing I need to back up a step and specify the data I want, using /columns, in order to combine these data sets...?

For example, I want to know what item (picture) subjects are looking at and how they are looking at it so I guess I need something like:

/columns = script.stimulusitem2, scriptstimulusitem3, and then all of the eyetracker data sets that I desire...?

Or...maybe there is a way to obtain timestamp data in the ###raw.iqdat file and use the timestamp as the reference point between the two data sets?

Thanks again for your help. I can see the light at the end of the tunnel. :-)

Regards