Joe -
Hee hee - good question. Karl's MSP method (in
the latest update) is not peer-reviewed yet. I am currently evaluating it on my
data, and it works well, but I would hesitate to recommend it until it has
passed peer review. It does seem to avoid the "superficial-bias" of the basic
minimum norm method (='IID'), but the simulation results will be
critical. Hopefully these will be finished soon, if you don't mind
"watching this space".
(Note that it stands for "Multiple Sparse Priors"
and is different from Jeremie Mattout's "Multivariate Source
Prelocalisation")
Best wishes
Rik
----------------------------------------
Dr Richard Henson
MRC
Cognition & Brain Sciences Unit
15 Chaucer Road
Cambridge
CB2 7EF,
UK
Tel: +44 (0)1223 355 294 x522
Fax: +44 (0)1223 359 062
----- Original Message -----
Sent: Friday, April 27, 2007 1:21
AM
Subject: Re: [SPM] EEG: 3D source
reconstruction
Rik,
what is your current recommendation
on the inverse options: MSP,
LOR or
IID?
Thanks!
Joe
On Apr 26, 2007, at 3:29 AM, Rik
Henson wrote:
>
> Joe -
>
> If it's any help,
there is a worked example (how to use the fids
> and sensor
positions) in the first links here:
>
> http://www.mrc-cbu.cam.ac.uk/~rh01/analysis.html
>
>
(Once the latest updates to the inversion routines have been tested
> and peer-reviewed, I hope to make this worked example part of
the
> manual; at the moment the "imaging" MEG/EEG inversion code
is still
> evolving.)
>
> Rik
>
>
----------------------------------------
> Dr Richard Henson
> MRC
Cognition & Brain Sciences Unit
> 15 Chaucer Road
>
Cambridge
> CB2 7EF, UK
>
> Tel: +44 (0)1223 355 294
x522
> Fax: +44 (0)1223 359 062
>
> http://www.mrc-cbu.cam.ac.uk/~rik.henson
>
----------------------------------------
>
> ----- Original
Message -----
> From: Christophe Phillips
> To: [log in to unmask]
> Sent:
Wednesday, April 25, 2007 10:12 PM
> Subject: Re: [SPM] EEG: 3D source
reconstruction
>
>
> Dear Joe et al.
>
> I think
I'm the one responsible for the confusing comments about
>
editing out the fiducial information...
>
> Your latest
interpretation is right: get different files with the
> different
bits of information (fiducials in EEG and MRI space,
> sensors,
and headshape coordinates) and input them when requested.
> Hopefully,
the rest of the processing will run smoothly...
>
> Best,
>
Chris
>
> Joseph Dien a écrit :
>> Ah, worked it
out! Sorry for this stream of consciousness series
>> of
messages. I'll stop after this note until I'm definitely
>> stuck. Okay, the 3D reconstruction gives the choice of
either
>> using a .pol file or not. If yes then it is
assumed to have the
>> fiducials listed twice as noted
below. If no then it asks for the
>> files created by
create_fid_files and the sensor file should have
>> the
fiducials edited out. Please correct me if I'm wrong but it
>> does seem to have worked when done this way. I didn't get
the
>> error that Carsten reported.
>>
>>
Cheers!
>>
>> Joe
>>
>>
---------------------------------------------------------------------
>> -----------
>>
>> Joseph Dien
>>
Assistant Professor of Psychology
>> Department of
Psychology
>> 419 Fraser Hall
>> 1415 Jayhawk
Blvd
>> University of Kansas
>> Lawrence, KS
66045-7556
>> E-mail: [log in to unmask]
>> Office: 785-864-9822
(note: no voicemail)
>> Fax: 785-864-5696
>> http://people.ku.edu/~jdien/Dien.html
>>
>>
>
>
--
> ===================================================
>
Christophe Phillips, Ir, PhD
> F.N.R.S. Research
Associate
>
> Cyclotron Research Centre, B30
> University of
Liege, Sart Tilman
> 4000 Liege, Belgium
>
>
Tel: +32 4 366 2316
(secr.)
> +32 4 366
2366
> Fax: +32 4 366 2946
> email: [log in to unmask]
> web
: http://www.ulg.ac.be/crc
>
===================================================
>
------------------------------------------------------------------------
--------
Joseph Dien
Assistant Professor of
Psychology
Department of Psychology
419 Fraser Hall
1415 Jayhawk
Blvd
University of Kansas
Lawrence, KS 66045-7556
E-mail: [log in to unmask]
Office: 785-864-9822 (note: no
voicemail)
Fax: 785-864-5696
http://people.ku.edu/~jdien/Dien.html
