Hi Juan,

How long are the stimulus events? If they are short,
having 10 events per class might not be sufficient to
obtain robust beta weight estimates.

How many regressors is "too much" is hard to say in a
precise way, but 120 certainly seems like a lot,
particularly if they are not from TENT functions.

Modeling it 60+1 at a time may be a possible way to
evaluate the robustness of the model, to some degree.
But given that it is possibly desirable suggests that
the model might not be robust. If the 120 term model
actually fails, testing as 60+1 is surely not a good
way around that.

Is 3dDeconvolve complaining about the 120 parameter
version? If so, what are the messages?

- rick