Dear Karl and SPM list
On Mon, 20 Mar 2000 17:16:32 GMT Karl Friston <[log in to unmask]>
wrote:
> I would say, with an air of casual authority, that 'it is generally
> accepted that 12 subjects are sufficent to detect activations of 0.25%
> (fMRI) or 4% (PET) at a specificiy of 95% and sufficient sensitivity to
> detect at least one activated brain region' and then quote.....
Are the corresponding figures for SPECT known?
Thanks for your time
Peter Talbot
----------------------
Dr Peter Talbot
Specialist Registrar/Senior Tutor
Department of Mental Health
Queen's University of Belfast
Whitla Medical Building
Lisburn Road
Belfast
BT9 7BL, U.K.
Phone: +44 (0)28 9027 2166
Phone: +44 (0)28 9033 5791
Fax: +44 (0)28 9032 4543
Email: [log in to unmask]
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