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What about slice timing correction?  Yay or nay?


On May 21, 2004, at 10:01 AM, Christian F. Beckmann wrote:

> Hi
>
> mainly because you don't want the large amount of smoothing that people
> typically do in pre-stats. If you want to get rid of residual motion,
> try temporal filtering and mc first, run ICA on that and then use
> spatial filtering to blur.
> cheers
> christian
>
> On 21 May 2004, at 15:48, Jennifer Bramen wrote:
>
>> Hi Everyone,
>>
>> I was wondering why using the raw data, and not the filterered_func
>> data created after prestats, is
>> suggested if you want to use MELODIC to de-noise.  It seems to me that
>> you would want to
>> remove any residual effects of motion AFTER motion correction, not
>> before.
>>
>> Thanks!
>>
>> Jen
>>
>>
>> Jennifer Bramen
>> UCLA Brain Mapping Center
>> 660 Charles Young Dr. So
>> Los Angeles, CA 90095
>>
> --
>  Christian F. Beckmann
>  Oxford University Centre for Functional
>  Magnetic Resonance Imaging of the Brain,
>  John Radcliffe Hospital, Headington, Oxford OX3 9DU, UK
>  Email: [log in to unmask] - http://www.fmrib.ox.ac.uk/~beckmann/
>  Phone:   +44(0)1865 222782 Fax: +44(0)1865 222717
>
>
Jennifer Bramen
UCLA Brain Mapping Center
660 Charles Young Dr. So
Los Angeles, CA 90095