Hi
Have you looked at the raw EPI in a movie loop in fslview? I agree with Prantik, this looks like a scanner artefact to me.
best
Christian
On 8 Dec 2009, at 16:17, Jasper Looijestijn wrote:
> Hi all,
>
> I am doing a MELODIC analysis on 88 subjects with a high pass filter
> 100s and low pass filter 2.5s. Some of the components tend show a
> wispy pattern, with alternating activation/deactivation, as shown in the
> attachment.
> Does anyone have experience with interpreting this kind of activation?
> I thought it might be related to pulsation artefacts?
>
> Thanks, Jasper
> <HIC_29_xmp2.jpg>
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