About 7 I'd say, sorry! Several things there that are not following
the suggested recipe for dual-regression.
We're very nearly there with getting the stuff ready for beta-testing
- in the meantime, I'd suggest having a look at Christian's OHBM poster.
Also, if anyone wants to send bottles of decent Whisky to Christian
and me at the FMRIB address, I'm sure that will help speed things up.
Cheers.
On 8 Jul 2009, at 14:44, Jonathan O'Muircheartaigh wrote:
> I've been attempting to replicate the method but in a slightly blind
> way - I
> ran concat-ICA, found the component of interest, extracted out the
> column
> from melodic-mix and split it up into 40 timeseries (1 per subject).
> I then
> ran each subject through Feat using the extracted timeseries and got
> reasonable looking (?!) results in ~90% of the subjects. On a group-
> level,
> we also got predictable results (similar to our standard task fMRI
> results).
> On a scale of 1 to 10, how invalid is this approach?
>
> All the best,
> Jonathan
>
>
> On Tue, 7 Jul 2009 20:19:34 +0100, Steve Smith
> <[log in to unmask]> wrote:
>
>> Hi - the Concat-ICA + dual-regression approach (as used in the
>> Filippini PNAS paper) was presented in brief in an OHBM abstract this
>> year (first author Beckmann). A paper is in production, and we will
>> be releasing the script to do this for beta-testing very soon. If you
>> like we can put you on the list for people to contact as beta-
>> testers.
>>
>> Cheers.
>>
>>
>>
>> On 6 Jul 2009, at 17:55, Srinivas Rachakonda wrote:
>>
>>> Hi,
>>>
>>> Where can I get the reference to dual regression scheme as mentioned
>>> in "Distinct patterns of brain activity in young carriers of the
>>> APOE-ε4 allele" paper?
>>>
>>> Thanks,
>>> Srinivas
>>
>>
>> ---------------------------------------------------------------------------
>> Stephen M. Smith, Professor of Biomedical Engineering
>> Associate Director, Oxford University FMRIB Centre
>>
>> FMRIB, JR Hospital, Headington, Oxford OX3 9DU, UK
>> +44 (0) 1865 222726 (fax 222717)
>> [log in to unmask] http://www.fmrib.ox.ac.uk/~steve
>> ---------------------------------------------------------------------------
>
---------------------------------------------------------------------------
Stephen M. Smith, Professor of Biomedical Engineering
Associate Director, Oxford University FMRIB Centre
FMRIB, JR Hospital, Headington, Oxford OX3 9DU, UK
+44 (0) 1865 222726 (fax 222717)
[log in to unmask] http://www.fmrib.ox.ac.uk/~steve
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