I was wondering what the interpretations of the following ANOVA setups would be:

SETUP A:
-a levels --> 8 one for each timepoint that you estimated in the deconvolution
-b levels --> 2 one for each task
-c levels --> 10 one for each subject
fixed, fixed, and random effects for the levels, respectively

SETUP B:
-a levels --> 8 one for each timepoint that you estimated in the deconvolution
-b levels --> 2 one for each task
fixed and fixed effects for the levels, respectively


The a level factor is setup to determine the brain voxels that have significant signal modulation.
The b level factor is setup to look at task differences
Thus, the a level factor alone is relevant and the interaction is relevant because it would identify the voxels where the tasks are different over time.

The question I have is is there any advantage or disadvantage to either setup. It seems that SETUP A might be better because it takes subject differences into account. Any input would be appreciated.
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Also. 3dANOVA4 seems like it would be very beneficial to projects that look at group differences.