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Hi<br><br>
I was looking at prerelease, and came across what seems to me to be an
anomaly. Two snippets, below. One from Users Guide, the other from help.
Key bits underlined. Prerelease is mentioned more in Guide chapter 3
example paradigms, used with event mode. Yet e-basic notes that it is
ignored during event mode. So does anyone know what is the real story
with prerelease? does it operate in Event mode, or not? <br><br>
Secondly, Timing paradigm 2 details a masking paradigm with Probe
duration 90ms, and waiting for a response for 2000 ms. The Probe has 100
ms prerelease so the following mask can be prepared. Have a look at
the <b>bold line</b> in e=prime help snippet below. Again, does anyone
know the real story with this? Is e-prime example paradigm fantasy, or
has the implementation of prerelease been modified early, and the woeful
help has escaped notice and updating for 7(?) years?<br><br>
From p110 of e-prime users guide (from version 1): <br>
----------------------------------------------------<br>
<b>Timing Paradigm 2: Critical sequence of events<br>
</b>... An example would be to present a sequence of<br>
a fixation, probe, and mask, where the duration of each of the events is
precise, the time of the<br>
response is precise, and the response may occur during or after the
stimulus event (e.g.,<br>
response to the probe occurred while the mask display was presented).
Subject input may alter<br>
the timing (e.g., remove the stimulus when the subject responds). After
the critical sequence of<br>
events, the timing of the remaining events (e.g., feedback) and the time
to choose the next<br>
condition are not critical (e.g., delays of less than 100ms are not
critical). <u>This paradigm model<br>
uses Event timing mode with PreRelease enabled on all objects except the
last one of the<br>
sequence</u>. Durations for displays are set based on the refresh rate of
the video mode.<br>
-----------------------------------------------------<br><br>
From e-basic help (both versions 1, and 2)<br>
----------------------------------------------<br>
Syntax<br><br>
RteRunnableInputObject.PreRelease<br><br>
Description<br><br>
Amount of time released during the processing of the current object to
allow for setup of the next object.<br><br>
Comments<br><br>
¨<x-tab> </x-tab><u>This
property is used only with Cumulative Timing Mode. It is ignored in
Event timing.<br><br>
</u>¨<x-tab> </x-tab><b>
PreRelease is ignored by objects which have their Run method terminated
by a response.<br><br>
</b>¨<x-tab> </x-tab>If the
object has a post-action (e.g., ClearAfter), the Pre-Release time will
have little effect (e.g., the object must wait until its true offset time
before clearing).<br>
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