response recording during several displays

[David McFarlane]

Indeed, that is not a bad solution, and it is the first solution that 
all my students come up with when I pose the question to them (and 
was my own first solution).  But for one thing it does seem 
kludgy:  The .RT appears sometimes in the stimulus column, sometimes 
in the mask column, and when it appears in the mask column you have 
to add in the duration of the stim.  And if you do just that, your RT 
will *not* include the time between the offset of the stimulus and 
the onset of the mask.  So to get it right when the response comes 
during the mask you would need to calculate mask.RTTime - 
stim.OnsetTime.  Whew!

There has to be an easier way, and there is -- *Extended 
Input*.  Extended input cleanly, simply, and transparently takes care 
of all of this.  Please please do not overlook Appendix C.

-- David McFarlane, Professional Faultfinder


At 12/17/2009 11:32 AM Thursday, Sravani Vinapamula wrote:
>I think you can just give the duration for the response as the sum 
>of the times of both slides.
>
>
>
>
>On Wed, Dec 16, 2009 at 4:23 AM, Tobi 
><<mailto:tobias.fw at gmail.com>tobias.fw at gmail.com> wrote:
>Hi everyone,
>
>I have the following, although sounding simple, hard to solve problem:
>
>I want to show a stimulus for x ms and then to show a mask for y ms.
>Participants should be able to respond for the x+y ms, i.e. during two
>displays.
>
>How can I do this?
>Any hints are most welcome!
>
>Cheers,
>Tobias

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