<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=Content-Type content="text/html; charset=iso-8859-1">
<META content="MSHTML 6.00.2900.2604" name=GENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=#ffffff>
<DIV><FONT face=Arial size=2>Dear all,</FONT></DIV>
<DIV><FONT face=Arial size=2>just started to really use EEGLab. My current
dataset is obtained from CTF 151 channe Omega MEG equipment and consists
of auditory P50 suppression paradigm.</FONT></DIV>
<DIV><FONT face=Arial size=2>2 main aims:</FONT></DIV>
<DIV><FONT face=Arial size=2>1) compute localisation (and orientation) of
dipolar sources of the S1 (prepulse) MLAEF and of the S2 (startling) stimuls.
For this EEGLab, as far as I can understand, seems to compute the inverse
solution according to a 3-sphere model with conductivities of the 3 layers in a
way that must be EEG targeted. Has anybody procesed MEG data using the dipfit
routine ? Can the conductivity values be edited taking into account the MEG
factor? Can you save mean and SD of the stength of dipolar sources of the S1 P5
and of the S2 P50 and XYZ, orientation and azimuth for statistical processing
across subjects?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>2) looking at ERSP following the S1 and looking as
to whether this hides some clues as to why is the response to S2 suppressed.
Again are the TF representation values available for saving in a Matlab array
and ultimately in a file?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Sorry for the lengthy EMAIL and the probably
"boring" questions. From a novice of EEGLab</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Stefano Seri</FONT></DIV>
<DIV><FONT face=Arial size=2>Aston University</FONT></DIV>
<DIV><FONT face=Arial size=2>Birmingham, UK</FONT></DIV></BODY></HTML>