Hi, <br><br>You might be interested in Nick Dowels work on using MRI to measure<span style="font-size: 10pt;"></span> the oxygenation of the vitreous humour of the eye <em>in vivo</em>.<br><br><br><a href="http://www.bsms.ac.uk/research/our-researchers/nicholas-dowell/">http://www.bsms.ac.uk/research/our-researchers/nicholas-dowell/</a><br>
<br><br><span style="font-size:10pt">Marcus Gray</span>
<div style="line-height:normal;margin:0cm 0cm 0pt;font-family:verdana,sans-serif"><span style="font-size:10pt"></span> </div>
<p style="line-height:normal;margin:0cm 0cm 0pt"><span style="font-size:10pt"><span style="font-family:verdana,sans-serif">Senior Fellow</span><br style="font-family:verdana,sans-serif"><span style="font-family:verdana,sans-serif">Experimental Neuropsychology Research Unit</span><br style="font-family:verdana,sans-serif">
<span style="font-family:verdana,sans-serif">School of Psychology and Psychiatry</span><br style="font-family:verdana,sans-serif"><span style="font-family:verdana,sans-serif">Faculty of Medicine Nursing &amp; Health Sciences</span><br style="font-family:verdana,sans-serif">
<span style="font-family:verdana,sans-serif">Building 17, Level 5 - Room 519</span><br style="font-family:verdana,sans-serif"><span style="font-family:verdana,sans-serif">Monash University </span><br style="font-family:verdana,sans-serif">
<span style="font-family:verdana,sans-serif">Clayton, VIC, 3800</span><br> <br>Phone: +61 (0)3 9905 3245<br>email: <a href="mailto:[log in to unmask]" target="_blank"><a href="/cgi-bin/wa-jisc.exe?LOGON=A3%3Dind1108%26L%3DSPM%26E%3Dquoted-printable%26P%3D5315519%26B%3D--0016e64c1a4ed863d904aacfbf2a%26T%3Dtext%252Fhtml%3B%2520charset%3Dwindows-1252%26pending%3D" target="_parent" >[log in to unmask]</a></a></span></p>
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<br><br><div class="gmail_quote">On 18 August 2011 23:20, Bill Budd <span dir="ltr">&lt;<a href="mailto:[log in to unmask]"><a href="/cgi-bin/wa-jisc.exe?LOGON=A3%3Dind1108%26L%3DSPM%26E%3Dquoted-printable%26P%3D5315519%26B%3D--0016e64c1a4ed863d904aacfbf2a%26T%3Dtext%252Fhtml%3B%2520charset%3Dwindows-1252%26pending%3D" target="_parent" >[log in to unmask]</a></a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div link="blue" vlink="purple" style="word-wrap:break-word" lang="EN-AU"><div><p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">Your SPM looks like it might be an auditory task? We sometimes see this in a boxcar (rest-activation) fMRI design. I’ve always blamed sleepy subjects who often close their eyes when no sounds are presented but open them when sound is presented.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"><u></u> <u></u></span></p><div><p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">Cheers<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">             -Bill<u></u><u></u></span></p>
</div><p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"><u></u> <u></u></span></p><div style="border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm 4.0pt"><div><div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span style="font-size:10.0pt" lang="EN-US">From:</span></b><span style="font-size:10.0pt" lang="EN-US"> SPM (Statistical Parametric Mapping) [mailto:<a href="mailto:[log in to unmask]" target="_blank"><a href="/cgi-bin/wa-jisc.exe?LOGON=A3%3Dind1108%26L%3DSPM%26E%3Dquoted-printable%26P%3D5315519%26B%3D--0016e64c1a4ed863d904aacfbf2a%26T%3Dtext%252Fhtml%3B%2520charset%3Dwindows-1252%26pending%3D" target="_parent" >[log in to unmask]</a></a>] <b>On Behalf Of </b>Steve Masson<br>
<b>Sent:</b> Thursday, 18 August 2011 8:29 AM</span></p><div class="im"><br><b>To:</b> <a href="mailto:[log in to unmask]" target="_blank"><a href="/cgi-bin/wa-jisc.exe?LOGON=A3%3Dind1108%26L%3DSPM%26E%3Dquoted-printable%26P%3D5315519%26B%3D--0016e64c1a4ed863d904aacfbf2a%26T%3Dtext%252Fhtml%3B%2520charset%3Dwindows-1252%26pending%3D" target="_parent" >[log in to unmask]</a></a><br><b>Subject:</b> [SPM] Activation in an eye<u></u><u></u></div>
<p></p></div></div><p class="MsoNormal"><u></u> <u></u></p><div><div><p class="MsoNormal">Dear SPM users,<u></u><u></u></p><div><div></div><div class="h5"><div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal">
I observe activation in an eye (see attachment). I have a limited experience in fMRI data, so you&#39;re help will be really appreciated.<u></u><u></u></p></div><div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal">
Is it common?<u></u><u></u></p></div><div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal">What is the possible cause?<u></u><u></u></p></div><div><p class="MsoNormal"><u></u> <u></u></p></div><div>
<p class="MsoNormal">What can be done to avoid this?<u></u><u></u></p></div><div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal">All thoughts and ideas will be welcomed!<u></u><u></u></p></div><div>
<p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal">Regards,<u></u><u></u></p></div><div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal">Steve<u></u><u></u></p></div><p class="MsoNormal" style="margin-bottom:12.0pt">
<u></u> <u></u></p><div><p class="MsoNormal"><span style="font-size:7.0pt"><img src="" height="640" width="460"></span><u></u><u></u></p></div></div></div></div></div><p class="MsoNormal"><u></u> <u></u></p></div></div></div>
</blockquote></div><br>