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Announcing a new update of EEGLAB (4.3) featuring the new DIPFIT (1.0)
plug-in<br>
available from <a class="moz-txt-link-freetext" href="http://sccn.ucsd.edu/eeglab/">http://sccn.ucsd.edu/eeglab/</a><br>
============================================================<br>
<br>
DIPFIT - dipole fitting of independent component (or other scalp) maps<br>
in Matlab, callable from the EEGLAB menu<br>
<br>
DIPFIT was written by Robert Oostenveld
(<a class="moz-txt-link-abbreviated" href="http://www.miba.auc.dk/~roberto/header.html">www.miba.auc.dk/~roberto/header.html</a>) of<br>
Aalborg University and F.C. Donders Centre<br>
Aalborg, Denmark Nimejen, The Netherlands<br>
and was integrated into EEGLAB by Robert Oostenveld and Arnaud
Delorme <br>
with Scott Makeig at SCCN, Institute for Neural Computation, UCSD<br>
<br>
DIPFIT functions allow users to fit independent component (or other)
maps<br>
to single- or dual-symmetric dipole models in an arbitrary four-shell
spherical<br>
head model (with head model parameters used in BESA are defaults). Both<br>
automated (one-click) and manual (exhaustive and/or iterative) search
modes<br>
are supported. Results may be visualized using the enhanced dipplot()
function.<br>
Batch-mode processing is supported. A new DIPFIT tutorial appendix is
also<br>
available at <a class="moz-txt-link-freetext" href="http://sccn.ucsd.edu/eeglab/dipfittut/dipfit.html">http://sccn.ucsd.edu/eeglab/dipfittut/dipfit.html</a> <br>
<br>
The DIPFIT plug-in is included in EEGLAB v4.3. Three other EEGLAB
plug-ins are now<br>
available for separate download from
<a class="moz-txt-link-freetext" href="http://sccn.ucsd.edu/eeglab/plugins.html">http://sccn.ucsd.edu/eeglab/plugins.html</a><br>
<br>
1. BESA fit - Fit single and dual-symmetric dipole models to independent<br>
component maps using BESA (Megis Software, GmbH) running outside
Matlab.<br>
<br>
2. BIOSIG import: Import data files in several data formats (requires
the BIOSIG toolbox <br>
(biosig.sourceforge.net) of Alois Schloegel. If EEGLAB can't import
it, try BIOSIG!<br>
<br>
3. EEP import: Contributed by the Ant Software company
(ant-software,nl) to import <br>
their .eep format data.<br>
<br>
The version updates below were contributed or suggested by several
EEGLAB users including<br>
Robert Oostenveld, Petr Janata, Rufin VanRullen, Vladimir Litvak,
Johannes Sarnthein,<br>
Chris Jetton, Jed Meltzer. We intend shortly to invite participation
in an EEGLAB <br>
developers email list for those interested in developing EEGLAB as a
general open source <br>
platform for advanced EEG and MEG data analysis.<br>
<br>
****** The new version (4.3) of EEGLAB includes several other
significant changes: ******<br>
<br>
* EEG.urevent: removed automatic urevent structure building for
pre-existing datasets.<br>
!!WARNING!!: Datasets created under EEGLAB 4.1 and loaded into
4.2 had an<br>
EEG.urevent structure created automatically. IF some data
containing events<br>
had been rejected BEFORE this time, then the urevent structure
information<br>
IS INCOMPLETE (i.e. to some degree wrong!). Most new datasets
created under 4.2<br>
had the urevent structure saved correctly when the event
information was first<br>
added. Be cautious about using urevent information from legacy
4.1 datasets.<br>
* eeg_time2prev(): first (commandline) function to use urevent
information. Returns the <br>
delay in ms from each event of one or more specified
('target') type(s) to the <br>
last preceding event of one or more specified ('previous')
type(s). Uses the <br>
EEG.urevent and EEG.event().urevent structures. Useful for
selecting event subsets <br>
or as an epoch sorting variable ('sortvar') in erpimage().<br>
* DIPFIT: Added DIPFIT toolbox of Robert Oostenveld as included
plug-in. Fits component <br>
maps to single or dual-symmetric dipoles in a spherical head *
model <br>
* eeg_hist(): add local history for each EEG dataset.<br>
* pop_editset(): fixed command line call error (thanks to Vladimir
Litvak).<br>
* pop_readbdf(): fixed error when using default parameter in graphical
interface.<br>
* eeg_checkset(): fixed minor problem for urevents.<br>
* envtopo(): fixed compnum problem for pvaf.<br>
* eeg_eegfilt(): fixed nargin problem (thanks to Petr Janata).<br>
* tftopo(): fixed significance threshold for visualizing ITC.<br>
* erpimage(): phase sorting now removes baseline before computing phase <br>
(thanks to Rufin VanRullen).<br>
* erpimage(): added 'erpalpha' flag to plot ERP bootstrap significance
limits.<br>
This test works as follows: A distribution is computed of
surrogate <br>
trial averages summing the input trials with randomly flipped
signs.<br>
The specified (two-sided) significance level is estimated from
this<br>
distribution, and plotted in red<br>
* erpimage(): made 'auxvar' plotting work with 'ampsort','phasesort',
and 'plotamps'<br>
* erpimage(): added argument 'horz' to overplot horizontal lines at
indicated epoch numbers<br>
* erpimage(): non-significant data ranges (erp, amp, itc) are now shown
in filled background blue<br>
* loadcnt(): latest version (v4.2) could not read files with no events.
Fixed this.<br>
* eegplugin_besa(): fixed saving dipoles in the multiple dataset
structure.<br>
* pop_epoch(): automatically add time-locking events if no event in
data trials. <br>
fixed bug when epoching without including time 0.<br>
* runica(): added 'compvars' (mean component vars) as 3rd output arg; <br>
moved activations to 7th output argument.<br>
* topoplot(): added 'noplot',[radius angle] option to return an
interpolated value<br>
for a single [missing] channel. Not recommended for use with
very many<br>
data points, nor for channel locations at/off the edge of the
electrode array.<br>
* pop_headplot(): filing load file problem under windows.<br>
* pop_chanlocs(): fixed history for channel center optmization; updated
read electrode file gui; <br>
Added "Append" button; updated coordinate conversion buttons. <br>
Fixed polhemusx and polhemusy error.<br>
* pop_comperp(): fixing function crash for grand ERP in one condition
(thanks to Vladimir Litvak).<br>
* spec(), eegfiltfft(): new functions to replace functions from the
Signal Processing toolbox <br>
for users who do not have it (Signal Processing toolbox
functions are still preferred).<br>
* readneurolocs(): now reads two types of Neuroscan polar location
files.<br>
* spectopo(): uses Matlab pwelch(), units specified (10*log10(uV/Hz)
(thanks to Johannes Sarnthein).<br>
* phasecoher(): now uses angle() instead of obsolete toolbox function
phase() (thanks to Chris Jetton).<br>
* pop_importpres(): now uses Presentation fields from data file
(instead of stereotyped fields).<br>
* pop_importevent(): internally reprogrammed.<br>
* channel location database: added standard 10-10 and 10-20 System caps
in EEGLAB format<br>
See: <a class="moz-txt-link-freetext" href="ftp://sccn.ucsd.edu/pub/locfiles/eeglab/">ftp://sccn.ucsd.edu/pub/locfiles/eeglab/</a><br>
* loadcnt(): fixing event reading bug for 32-bit continuous Neuroscan
files (thanks to Jed Meltzer).<br>
* readlocs(): if both spherical and 3-D Cartesian coordinates are
present, now uses spherical<br>
by default and re-converts to 3-D Cartesian.<br>
<br>
<div class="moz-signature">-- <br>
<br>
<b><font face="Arial,Helvetica"> <a
href="http://www.sccn.ucsd.edu/%7Earno" target="_blanc">Arnaud Delorme</a>,
Ph.D.</font></b> , SCCN, UCSD, San Diego, USA <br>
<br>
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<td><b>SCCN main page:</b></td>
<td><a href="http://www.sccn.ucsd.edu/" target="_blanc">www.sccn.ucsd.edu</a></td>
</tr>
<tr>
<td><b>EEGLAB main page:</b></td>
<td><a href="http://www.sccn.ucsd.edu/eeglab" target="_blanc">www.sccn.ucsd.edu/eeglab/</a></td>
</tr>
<tr>
<td><b>EEGLAB documentation:</b></td>
<td><a href="http://www.sccn.ucsd.edu/eeglab/eeglabdocs.html"
target="_blanc">www.sccn.ucsd.edu/eeglab/eeglabdocs.html</a></td>
</tr>
<tr>
<td><b>EEGLAB FAQ page:</b></td>
<td><a href="http://www.sccn.ucsd.edu/eeglab/eeglabfaq.html"
target="_blanc">www.sccn.ucsd.edu/eeglab/eeglabfaq.html</a></td>
</tr>
<tr>
<td><b>EEGLAB mailing lists:</b></td>
<td><a href="http://www.sccn.ucsd.edu/eeglab/eeglabmail.html"
target="_blanc">www.sccn.ucsd.edu/eeglab/eeglabmail.html</a></td>
</tr>
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