Hi Steve,
Thank you very much. So there is no way to get a list of the p-values
for each cluster, except for re-running at different thresholds?
Best,
Anders
2013/11/28 Stephen Smith <[log in to unmask]>:
> Hi - I’m afraid there is not really any such thing as a “cluster Z value” in
> this context. Each cluster will have an estimated p-value, which may or may
> not be significant. The easiest way to find out the list of non-significant
> clusters is just to re-run this with a more lenient p-value cluster
> threshold?
> Cheers, Steve.
>
>
> On 28 Nov 2013, at 08:52, Anders Hougaard <[log in to unmask]> wrote:
>
> Dear all,
>
> I have performed a paired higher-level analysis in FEAT, comparing
> first-level results from two different conditions in the same
> subjects.
>
> I used "cluster" thresholding with the default threshold settings of
> Z>2.3 initially and cluster P threshold 0.05.
>
> There are no significant differences between the two conditions using
> these settings. When reporting this, I would like to state the Z-value
> of the most significant cluster. However, I can't find this value in
> the FEAT output.
> How do I determine this?
>
> All the best,
> Anders
>
>
>
> ---------------------------------------------------------------------------
> 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
> ---------------------------------------------------------------------------
>
> Stop the cultural destruction of Tibet
>
>
>
>
|