[Neuroscience] Re: Neuronal activity in the brain

Fijoy George via neur-sci%40net.bio.net (by tofijoy from yahoo.co.in)
Sat Oct 28 11:31:58 EST 2006


Thnaks for the advice, Matthew. Right now, I am looking at only the EEG/MEG 
source localization problem.

Fijoy

"Matthew Kirkcaldie" <m.kirkcaldie from removethis.unsw.edu.au> wrote in message 
news:m.kirkcaldie-23609B.08500427102006 from un-2park-reader-01.sydney.pipenetworks.com...
> In article <ehqgcn$9r7$1 from mailhub227.itcs.purdue.edu>,
> "Fijoy George" <tofijoy from yahoo.co.in> wrote:
>
>> In fact, I am a student (in
>> Computer Science) currently working on the EEG/MEG neural source imaging
>> problem, and I wanted to know how to correctly simulate activation 
>> patches
>> on the cortical surface.
>
> I sympathise with your problem!  Unfortunately I think there's little
> available guidance to suggest a "correct" way, because we don't know
> what kinds of neuronal activity produce fMRI signal.  Are you wanting to
> map the electrical EEG domain to the fMRI domain?  That sounds like an
> interesting problem and I will have a dig around to see what I can turn
> up.  Maybe Dr Agmon or Dr Norman could suggest some resources. My first
> thought is the Brain Dynamics group here in Sydney, Australia - they
> have produced models of EEG power spectra based on simple anatomical
> properties of bulk cortical tissue.  I don't think they have applied it
> to correlation with fMRI though - although the members do use fMRI in
> experimental contexts.
>
> http://www.brain-dynamics.net/
>
> Hope that helps - it's much easier to know how to advise when you say
> what you're trying to achieve!
>
>      Cheers,
>
>         MK. 




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