Dear Yune,
I fully agree with Jonathan.
In addition, the answer as to reliability will depend a great deal on
which area you are looking at. As a rule of thumb, the more "primary"
your cortical areas the more closely they will be linked to major anatomical
landmarks (i.e. sulci) - which are the only ones observable by standard MRI
anyway. The catch-22 is that the more "associative" and higher-order
the areas, the less clear this relationship – and, unfortunately, the
less likely you will be to have quantitative and probabilistic data from the Jülich
work.
We have had a comparative look at probabilistic anatomical (MRI
landmarks) versus probabilistic cytoarchitectonic (Jülich) data for the
inferior frontal gyrus in MNI space in this paper:
-
both estimates were
very similar indeed (see Figure 6).
To me, this justifies using our (freely available) maximum probability
maps (e.g. http://www.ncbi.nlm.nih.gov/pubmed/12874777?ordinalpos=1&itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_DefaultReportPanel.Pubmed_RVDocSum
) for most applications when there is no Jülich data – that will
be a lot more accurate and reproducible than guesstimates on “Brodmann
areas”.
I hope this helps,
Best wishes,
Alexander
-----Original Message-----
From: SPM (Statistical Parametric Mapping) [mailto:[log in to unmask]] On
Behalf Of Jonathan Peelle
Sent: 07 July 2009 21:04
To: [log in to unmask]
Subject: Re: [SPM] Is there any map converting MNI to Brodmann area?
Hi Yune
Nearly any Brodmann map or software package you come across will have
limitations to its accuracy and applicability; this is discussed in
the following article, which I think is very helpful:
Devlin JT, Poldrack RA (2007) In praise of tedius anatomy. NeuroImage
37, 1033–1041.
http://dx.doi.org/10.1016/j.neuroimage.2006.09.055
So with all of the caveats that come along with these maps, the one in
MRIcron is probably fairly good, but of course you really shouldn't
rely on it too much for describing your data.
Another option (and probably a more accurate one!) is to use the SPM
Anatomy toolbox:
http://www.fz-juelich.de/inm/spm_anatomy_toolbox
which provides probabilistic cytoarchitectonic maps in MNI space.
However, not all areas are available, so it may depend on what are you
are interested in.
Hope this helps,
Jonathan
On Tue, Jul 7, 2009 at 8:03 PM, Yune Lee<[log in to unmask]>
wrote:
> Dear SPM users,
> Is there any map (e.g., software/ book) that can show the
corresponding
> broadmann are with MNI coordinate?
> I've been using the built-in map in MRIcron, but I'm sure how
reliable it
> is.
> Any suggestion/ info would be appreciated.
>
> Thanks,
> YSL