Error in timing synchronisation

[David McFarlane]

Kumar,

Do you mean Invivo's ESys Patient Entertainment, or their ESys 
fMRI?  If the former, then I would be surprised if it did *not* 
introduce timing inaccuracies.  If the latter, once again I think you 
need to ask Invivo for support.  Or is ESys one of those systems that 
is just built around E-Prime, like IFIS?  In that case it is not 
proper to say that you run E-Prime from ESys, rather you run ESys 
from or on top of E-Prime -- it helps to get the terminology straight 
here.  Anyway, also in that case you might still avail yourself of 
E-Prime help (and chapter 3 still applies), but if the problem comes 
from extensions provided by Invivo then once again all roads lead 
back to Invivo.

Hope you can get some help on this,
-- David McFarlane, Professional Faultfinder


At 8/16/2010 05:57 PM Monday, you wrote:
>Hello Dave,
>
>E-sys, (Entertainment-System) is a visual presentation system for 
>developed by Invivo just like the Eloquence system.
>
>Thank you for your suggestion. I shall act upon this accordingly.
>
>Cheers,
>Kumar.
>
>On Mon, Aug 16, 2010 at 3:07 PM, David McFarlane 
><<mailto:mcfarla9 at msu.edu>mcfarla9 at msu.edu> wrote:
>Kumar,
>
>I hope you have submitted this to PST Web Support 
>(<http://support.pstnet.com/e%2Dprime/support/login.asp>http://support.pstnet.com/e%2Dprime/support/login.asp 
>).  In the meantime, here are some more general thoughts & questions.
>
>First & foremost, since you do care about critical timing, you 
>*must* study chapter 3 of the User's Guide that came with E-Prime.
>
>Second, what is this "E-sys presentation system" from which you run 
>E-Prime?  (Google does not help here, as "E-sys" produces too many 
>different hits.)  Quite likely the problem lies with E-sys and not 
>with E-Prime, which means you need to ask the E-sys folks.
>
>-- David McFarlane, Professional Faultfinder
>
>
>
>At 8/15/2010 10:27 AM Sunday, you wrote:
>I am kind of stuck a timing discrepancy on E-pime when I am running it
>from E-sys presentation system. My presentation is supposed to be
>starting at 28sec however they seems to be some sort of an offset and
>it does not begin at the correct time (found this out from the t-dat
>file, at least I think thats what the t-dat file showed). So when I
>run my entire paradigm for 5 min which contains a total of 16
>presentation, I am finally off by 16 or 17 secs (1sed per presentation
>is what I am guessing) and the duration ends up being between 5min
>15sec and 5min 20 sec.
>
>Can you please help me in this regard?
>
>Cheers,
>Kumar.
>
>--
>Aditya Kumar. K
>Grad Student,
>Department of BME
>UF.

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