|
|
|
Forum Newbie
Group: Forum Members
Last Login: 11/7/2011 11:03:47 AM
Posts: 5,
Visits: 8
|
|
| I am using E Prime v2.0 Professional, and I am setting up the Tobii Eye Tracker extensions. I am running through the tutorial manual that is given, and I am trying to implement the TETWaitForFixation Package. If I am not mistaken, Eprime is supposed to recognize when I look at the fixation stimulus and then advance to the next object when it has been stared at for 2000 miliseconds. However, when I do this nothing happens. I have tried recreating the experiment myself and I have even gone to the other tutorials provided and still nothing happens. All that happens is the fixation slide stays steady until I have to press enter myself. The Tobii is getting some sort of eye tracking because when I open the tutorial TETVaryingPositionAOITracking experiment, it records where I looked during the Gaze Replay segment. Any clues? Any help will be greatly appreciated!
|
|
|
|
|
Forum Newbie
Group: Forum Members
Last Login: 4/27/2011 1:52:34 PM
Posts: 7,
Visits: 48
|
|
| I am having the same problem with the WaitForFixation package call. It works fine for a little bit (may be for about 25 stimulii) and then gets stuck on the fixation stimulus and does nothing when the eyes look at the fixation.
|
|
|
|
|
Forum Newbie
Group: Forum Members
Last Login: 11/7/2011 11:03:47 AM
Posts: 5,
Visits: 8
|
|
| Could you send me your file? I would like to see what is different or if it works on my setup. Thanks a lot!
|
|
|
|
|
Forum Newbie
Group: Forum Members
Last Login: 2/15/2011 10:04:04 AM
Posts: 4,
Visits: 21
|
|
Hello all,
I am having a problem with the wait for fixation package as well, using a Tobii 1750 communicating with e-prime 2.0. The problem is two-fold.
1. Normally, the gazedata file records the fixation (i.e., in the "onscreen" column there is about 1 second's worth of rows labeled "fixation"). This was the case with data in the past (used excel's filter command to get rid of this info), but now there simply is no fixation recorded.
2. Each trial (10 trials total) times out at 3 minutes. The gazedata file only records about the first 85 (up to a maximum of 90) seconds of each trial, then stops (the user can terminate the trial, but we know that users are using the full 3 minutes).
The net effect is that in the RTTime column, there is a huge jump from the "end" of one trial to the "beginning" of another trial, with no indication of a fixation in between, and the latter half of the data for each trial is simply missing.
Any help with this issue would be greatly appreciated. I have searched through these forums, but if I have missed an answer to this, I apologize.
Kuba Glazek
Graduate Program in Brain and Cognitive Science
Temple University, Philadelphia
|
|
|
|
|
Forum MVP
Group: Forum Members
Last Login: Today @ 3:37:18 PM
Posts: 713,
Visits: 2,756
|
|
| Your issue seems significant enough to warrant the attention of PST staff. For that you need to contact PST Web Support at http://support.pstnet.com/e-prime/support/login.asp, where they promise response times of 24-48 hours to all requests. And if you feel charitable you may then post the answer back here for the sake of others.
|
|
|
|
|
Forum Newbie
Group: Forum Members
Last Login: 2/15/2011 10:04:04 AM
Posts: 4,
Visits: 21
|
|
This problem has now been addressed by PST staff. The problem is that for any trial that is long enough (i.e., >86s), the buffer starts to write over the beginning of the trial. The solution is to insert an inline script at the beginning of sessionproc, directly underneath all the TET packages. The code is:
TobiiEyeTracker.History.MaxCount = 100000
The real maximum you can use is 1,000,000 but for my purposes 100,000 is fine. Hope people can use this to their advantage.
Kuba Glazek
Graduate Program in Brain and Cognitive Science
Temple University, Philadelphia
|
|
|
|
|
Forum Newbie
Group: Forum Members
Last Login: 8/3/2011 6:55:22 AM
Posts: 4,
Visits: 71
|
|
I've had the same problem but when I try to increase the History.MaxCount parameter it won't accept values greater than the actual value, which is if I remember correctly 4962.
Does someone know why??
I use the Tobii t120.
Matteo Lisi
PhD student
Department of General Psychology
University of Padova
|
|
|
|
|
Forum Newbie
Group: Forum Members
Last Login: 10/8/2010 8:28:04 AM
Posts: 7,
Visits: 33
|
|
| Hi, Have you guys found a way to get over this? I'm having a problem that is probably caused by the same MaxCount limitations. In my experiment I try to present a 100 s long video clip stimulus. Everything seems to work fine, but when I look the gazedatafile afterwards, only the first 4096 samples (34 s) have been registered. It's probably the TET package script line "Const TET_MAXQUEUESIZE = 4096" that causes this. The same 4096 is also the upper limit for the History.MaxCount parameter. Any suggestions how to solve this? Off course, I could split the video into 30-s-long parts, but I guess that's not the most elegant solution here.
|
|
|
|
|
Junior Member
Group: Forum Members
Last Login: 10/20/2010 4:42:14 PM
Posts: 23,
Visits: 78
|
|
eahtola (9/24/2010)
Hi,
Have you guys found a way to get over this?
I'm having a problem that is probably caused by the same MaxCount limitations. In my experiment I try to present a 100 s longvideo clip stimulus. Everything seems to work fine, but when I look the gazedatafile afterwards, only the first 4096 samples (34 s) have been registered.
It's probably the TET package script line "Const TET_MAXQUEUESIZE = 4096" that causes this. The same 4096 is also the upper limit for the History.MaxCount parameter.
Any suggestions how to solve this? Off course, I could split the video into 30-s-long parts, but I guess that's not the most elegant solution here.
Did you try using the TobiiEyeTracker.History.MaxCount = 100000 solution posed a few posts above? There is no reason that it shouldn't work for you if you are using E-Prime 2.0.
|
|
|
|
|
Forum Newbie
Group: Forum Members
Last Login: 10/8/2010 8:28:04 AM
Posts: 7,
Visits: 33
|
|
| Yes, I did try that. But if I set the History.MaxCount parameter above the limit of 4096 (like 100000), I get Runtime error: "MaxCount specified is too large. Error number 10014". I noticed that there is a line "Const TET_MAXQUEUESIZE = 4096" in the full script that comes from TETOpen object which I believe that is the limiting factor here. I cannot edit it because it belongs to predefined TET Package. Do you know how to do this? I have E-prime 2.0.8.22 with TET package 2.0.1.5 and my tracker is Tobii T120.
|
|
|
|
