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<p class=MsoPlainText><font size=2 face="Courier New"><span style='font-size:
10.0pt'>Dear E-prime experts,<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=2 face="Courier New"><span style='font-size:
10.0pt'><o:p> </o:p></span></font></p>
<p class=MsoPlainText><font size=2 face="Courier New"><span style='font-size:
10.0pt'>I would like to program an object alternation task, which is a bit
similar to the spatial alternation task I mentioned a few weeks ago on the e-prime
list.<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=2 face="Courier New"><span style='font-size:
10.0pt'><o:p> </o:p></span></font></p>
<p class=MsoPlainText><font size=2 face="Courier New"><span style='font-size:
10.0pt'>Task description:<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=2 face="Courier New"><span style='font-size:
10.0pt'><o:p> </o:p></span></font></p>
<p class=MsoPlainText><font size=2 face="Courier New"><span style='font-size:
10.0pt'>The participant sees 2 objects (always a red tomato and a blue chair)
and has to figure out which one is baited with a £20 note. The participant task
is to learn that the object behind which the £20 note is located is being
alternated after each correct response. After each correct response, a £20 note
appears on the screen. Basically, I would like to design the task so that the
subject can click on the object behind which he thinks the £20 note is hidden.<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=2 face="Courier New"><span style='font-size:
10.0pt'><o:p> </o:p></span></font></p>
<p class=MsoPlainText><font size=2 face="Courier New"><span style='font-size:
10.0pt'>My questions are:<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=2 face="Courier New"><span style='font-size:
10.0pt'><o:p> </o:p></span></font></p>
<p class=MsoPlainText><font size=2 face="Courier New"><span style='font-size:
10.0pt'>1) Is there a way to display the same two objects but in different locations
on the screen across trials? The objects should change locations on the screen
in a random way.<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=2 face="Courier New"><span style='font-size:
10.0pt'><o:p> </o:p></span></font></p>
<p class=MsoPlainText><font size=2 face="Courier New"><span style='font-size:
10.0pt'>2) I believe it is possible to use the mousse as an input device using
the <o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=2 face="Courier New"><span style='font-size:
10.0pt'>SlideState.HitTest method, but don't really know how to use it.<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=2 face="Courier New"><span style='font-size:
10.0pt'><o:p> </o:p></span></font></p>
<p class=MsoPlainText><font size=2 face="Courier New"><span style='font-size:
10.0pt'>Any suggestions would be much appreciated.<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=2 face="Courier New"><span style='font-size:
10.0pt'><o:p> </o:p></span></font></p>
<p class=MsoPlainText><font size=2 face="Courier New"><span style='font-size:
10.0pt'>Many thanks!<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=2 face="Courier New"><span style='font-size:
10.0pt'><o:p> </o:p></span></font></p>
<p class=MsoPlainText><font size=2 face="Courier New"><span style='font-size:
10.0pt'>Stephane<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'>------------------------------------------</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'>Stephane De Brito, PhD student<o:p></o:p></span></font></p>
<p class=MsoNormal><st1:place w:st="on"><st1:PlaceType w:st="on"><font size=2
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>Institute</span></font></st1:PlaceType><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
of <st1:PlaceName w:st="on">Psychiatry</st1:PlaceName></span></font></st1:place><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'>King's College <st1:City w:st="on"><st1:place w:st="on">London</st1:place></st1:City><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'>Forensic Mental Health Science Department </span></font><o:p></o:p></p>
<p class=MsoNormal><st1:address w:st="on"><st1:Street w:st="on"><font size=2
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>Box</span></font></st1:Street><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
P023</span></font></st1:address><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'> </span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'>De Crespigny Park </span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'>Denmark Hill </span></font><o:p></o:p></p>
<p class=MsoNormal><st1:City w:st="on"><st1:place w:st="on"><font size=2
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>London</span></font></st1:place></st1:City><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
SE5 8AF</span></font><o:p></o:p></p>
<p class=MsoNormal><st1:country-region w:st="on"><st1:place w:st="on"><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>United
Kingdom</span></font></st1:place></st1:country-region><font size=2
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'>Tel: + 44 (0) 20 7848 0711<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'>Fax: + 44 (0) 20 7848 0754<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'>website: </span></font><font size=2
face="Courier New"><span lang=IT style='font-size:10.0pt;font-family:"Courier New"'><a
href="www.iop.kcl.ac.uk"><span lang=EN-GB>www.iop.kcl.ac.uk</span></a></span></font><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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