Hi:
As an addendum to Rik's question I'd like to add that the calculation
of the se does not seem to take into account averaging across
sessions (when plotting event related responses, fitted response +/-
standard error, around line 414 of spm_graph.m), but I may have
misinterpreted some of the calculations. Also even when plotting a
single session (no averaging) the standard error is huge and the
errors completely overlap from 2 different conditions in which a
contrast shows a significant difference between them. [I would think
the errors would not completely overlap if the fitted responses were
significantly different from one another.]
thanks,
Darren
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Darren R. Gitelman, M.D.
Cognitive Neurology and Alzheimer's Disease Center
E-mail: [log in to unmask] WWW:
http://www.brain.northwestern.edu
Voice: (312) 908-9023 Fax: (312) 908-8789
Northwestern Univ., 320 E. Superior St., Searle 11-470, Chicago, IL 60611
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