Hi Victoria,
seeing activation in the eyeball indicates that the motion pattern of
the eyeball is so similar to your model that enough variance is
explained by it to be deemed significant.
For example, if you contrast a visual search paradigm with rest, you
would expect to see this (as there is lots of eyeball movement in the
one but not in the other condition). This may be unavoidable but could
be reason to double-check if your paradigm is well-balanced in that regard.
In your example, it looks like the males had significantly more of this
than the females, which may or may not be neuroscientifically interesting :)
Cheers,
Marko
Victoria Klimaj wrote:
> Hi SPM Experts,
>
> Some of my processed data is showing activation in the eye region
> (please see attached for an image depicting the issue).
>
> How unusual or concerning is this? Is there something specific that
> would cause this kind of pattern to show up?
>
> Any information or thoughts on why this might be happening would be very
> appreciated.
>
> Thanks in advance for you help!
> -Victoria
>
--
____________________________________________________
PD Dr. med. Marko Wilke
Facharzt für Kinder- und Jugendmedizin
Leiter, Experimentelle Pädiatrische Neurobildgebung
Universitäts-Kinderklinik
Abt. III (Neuropädiatrie)
Marko Wilke, MD, PhD
Pediatrician
Head, Experimental Pediatric Neuroimaging
University Children's Hospital
Dept. III (Pediatric Neurology)
Hoppe-Seyler-Str. 1
D - 72076 Tübingen, Germany
Tel. +49 7071 29-83416
Fax +49 7071 29-5473
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http://www.medizin.uni-tuebingen.de/kinder/epn/
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