Logging RT with slide duration set at 1ms

[liwenna]

Ah.... I just see that there is another topic on ms timing issues
active rigth now: http://groups.google.com/group/e-prime/browse_thread/thread/ba1e927d0d49768b



On Oct 6, 2:08 pm, liwenna <liwe... at gmail.com> wrote:
> Nope not possible, but for a very different reason than you think (or
> so I guess).
>
> Any idea how insanely short 1ms is? It's too short for your display to
> catch up on: i.e. e-primewise it might be possible to have a 1ms slide
> duration but there is no display that can do 1ms refreshes (that would
> require a refreshrate of 1000 hz!). There is much ado regarding
> refresh rates on lcd screens, as far as I know the general consensus
> for millisecond timing in the scientific community is that you should
> always use CRT displays and if by any chance possible you ought to
> verify their refresh rate yourself, rather than just rely on, for
> instance, e-prime to get the timing correct by itself. So.. say you
> have a 90hz CRT screen,  you'd have a complete screen refresh every
> 11.11 milliseconds and this then is the shortest presentation time
> possible. Therefore your 1ms slides are probably shown at 11.11 (90
> hz), 11,76 (85hz), 13,33 (75 hz) etc ms.
>
> I am not sure what you'd need 1 ms slide durations for but I daresay
> that such a design is impossible to implement. If you decide to adjust
> your set-up and still need ms timing on this very low ms range: there
> is a number of techniques that should be used to get e-prime to
> actually give the timing that you think it should give. If I remember
> correctly the manual has a chapter dedicated to milliseconds timing.
>
> Best,
>
> AW
>
> On Oct 5, 9:39 pm, Brandon <vasqu... at gmail.com> wrote:
>
> > I am very new to E-Prime, and I am wondering if it is possible to log
> > RT and RT Time with slide durations of 1ms. I have logging enabled,
> > but no data is being recorded. I thought maybe the 1ms interval is too
> > short for logging to occur. But maybe someone out there has a solution?

-- 
You received this message because you are subscribed to the Google Groups "E-Prime" group.
To post to this group, send email to e-prime at googlegroups.com.
To unsubscribe from this group, send email to e-prime+unsubscribe at googlegroups.com.
For more options, visit this group at http://groups.google.com/group/e-prime?hl=en.