Dear SPM-Authors,
I have a question regarding the article 'The Trouble with Cognitive
Subtraction' (Neuroimage 4, 97-104 (1996)).
Figure 4 in this article shows the SPMs of three different contrasts,
built from the stimulation conditions A, B, C and D.
These contrasts are:
(B+C) - (A+D)
(D+C) - (A+B)
(C-D) - (B-A)
How can these contrasts be entered into SPM ?
Thank you,
Thomas Stephan
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Thomas Stephan Email: [log in to unmask]
Klinikum Grosshadern
Neurologisches Forschungshaus
Marchioninistr. 23 Fon: +49 089 / 7095-4809
81377 Muenchen Fax: +49 089 / 7095-4801
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