Dear SPM community,
at the SPM course in Brighton last june, the possibility of a combined
event-block design was mentioned in several talks. This design makes it
possible to evaluate the stimuli in both an event and block design by
separating the stimuli in one block of stimuli in such a way that an
event-related analysis is also possible. I'm very interested in such a
design but I have some practical questions.
Does anyone have experience with this? Are there already references on
this?
Does anyone have an practical example of how to spread your stimuli in a
block ?
Is the power of an event-related analysis with this type of design as
powerfull as with a typical randomized event related study (because the
stimuli are kept together in blocks and are not as much separated as a
normal event-ralated designs, I suppose).
I hope some of you have answers on some of these questions,
thanks in advance,
Karel deblaere
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