Getting response after stimulus has been cleared

[Tony Zuccolotto]

Eddie,

I would recommend setting the Time Limit on the response input mask to
(infinite) but setting the Duration of the stimulus object to 6000ms (it
won't matter what type of object you are using - either a text or slide
display).   You should also set the Terminate option to Jump and specify
a label name as a jump destination.  Set Clear After = No e.g. rather
than having this object clear itself, you will use a second object to
clear the stimulus after the 6000ms expires.

You then need to add new object immediately after the stimulus object
that does NOT accept a response but which does have an infinite
Duration.   Sounds like you can just use another TextDisplay object with
its background color set to match that of the first object.  After this
object you then place your Label object.

The way this will work is if the response comes in within the 6000ms it
will be accepted and the system will skip the next object by jumping
over it to the label you have created.    If the response comes in after
6000ms then you will again jump to the label and thus terminate the
second object.   If no response comes in within the first 6000ms then
the first object will end and the second object will clear the stimulus
from the screen when it runs.

You should be able to setup this type of structure without using any
Inline script.

Hope that helps,
Tony

*** DISCLAIMER: ALL VIEWS EXPRESSED ARE MY OWN AND DO NOT NECESSARILY
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Anthony P. Zuccolotto
Vice President and Chief Operations Officer
Psychology Software Tools, Inc.
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> -----Original Message-----
> From: Eddie Dubourg [mailto:eddie at ling.ed.ac.uk]
> Sent: Monday, June 28, 2004 12:09 PM
> To: eprime at mail.talkbank.org
> Subject: Getting response after stimulus has been cleared
> 
> Hi,
> 
> I'm trying to design a small e-prime experiment, and I've run into a
small
> problem.
> 
> I'm presenting text stimuli, which have to be on screen for 6 seconds,
and
> are then cleared - no problem.  What is causing the problem is that I
need
> to be able to get the response during and after the stimulus, i.e. the
> stimulus will be cleared, but the program will not proceed on to the
next
> stimulus until a response has been made, and no time limit must be set
for
> the response to occur in.
> 
> I think I'm being extremely dense, but when trying to script this,
I've
> tried using a slide, but I can't seem to set durations of the
> sub-components, so would I be best just using a text object with
unlimited
> duration, and then an inline script to clear the display after 6000ms?
> 
> Thanks for any help
> 
> Eddie Dubourg
> Computing/Technical support Officer
> Theoretical and Applied Linguistics
> University of Edinburgh.
> 
>