Dear Andreas,
Thanks for your reply.
It's event-related (luckily, it seems in this case).
Why is it easier for event than for block design? Is it that the TR difference (of 0.29s or about 12%) is too small to upset the case of single events (where the response of interest lasts a few TRs) but not for blocks where the response could be much longer? Or is there a deeper reason?
Cheers,
Kris
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