dear Stefan,
I followed this thread with interest and have some questions...
At 20:42 21/11/2000 +0000, you wrote:
>I wouldn't say that you're not allowed to say that... :-) but the
>corrected p-values just give you the 'improbability' that your
>observation was acquired under the null-hypothesis (as specified by your
>contrast). This means you can only infer from a t-map that there was
>some evidence such that you can reject the null-hypothesis for voxel,
>clusters or sets. No information about the strength I'm afraid.
That's what I've always thought. but, is there a good measurement of
strength of activation?
May be one can use the amplitude of the fitted response ? What's your
opinion on that point?
I'm just a beginner in using SPM and I'm a little disappointed in front of
the different ways used to analyse fMRI data.
Thanks in advance
Sylvain Clément
>email: [log in to unmask]
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Sylvain Clément
Equipe "Fonction
auditive" http://www.scico.u-bordeaux2.fr/~psyac
Laboratoire de Neurophysiologie
B.P. 63, UMR CNRS 5543
146 rue Léo Saignat
33076 Bordeaux Cedex, FRANCE
Tel: 05 57 57 16 51
Fax: 05 56 90 14 21
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