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<title>varying interstimulus interval based on scanner pulse</title>
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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>If you’re already familiar with doing
Inline scripts….<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I’d just use an Inline script to
keep track of how many times it has been triggered.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Maybe each time it receives a trigger,
have some dummy variable incremented by 1<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Then check it, if < the critical
amount, send it back to a label….<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>e.g. If Trigger < X then Goto Label 1<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
eprime@mail.talkbank.org [mailto:eprime@mail.talkbank.org] <b><span
style='font-weight:bold'>On Behalf Of </span></b>Binyam Nardos<br>
<b><span style='font-weight:bold'>Sent:</span></b> Monday, October 01, 2007
5:37 PM<br>
<b><span style='font-weight:bold'>To:</span></b> eprime@mail.talkbank.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> varying interstimulus
interval based on scanner pulse</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p style='margin-bottom:12.0pt'><font size=2 face="Times New Roman"><span
style='font-size:10.0pt'>Fellow eprimers,<br>
I have an experiment designed to display about 30 target stimuli separated by
varying interstimulus intervals. Since this is an in-scanner experiment, I have
an inline code which enables my experiment to listen to a scanner pulse and
execute certain actions (such as end the duration of a stimulus or an
interstimulus interval). Now what I'm trying to achieve is that instead of
programming my interstimuls intervals to last for a given duration based on
computer time ... I want them to last for an x number of scanner pulses
... so instead of terminating a the interstimulus interval at the first
instance of a pulse ... it would terminate it on the second third or
fourth etc .. instances of a pulse.<br>
<br>
Any help would be appreciated ..<br>
<br>
Binyam<br>
<br>
Binyam Nardos<br>
Cognitive Rehabilitation Research Group<br>
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