Hi Steve,
This signal drop is present in the raw time series as well. By the way,we
use the spiral in/out sequence and we discard the first 5 scans (10s)(so we
need to discard 2 more scans)..The cause might be the sequence..i'll run
some tests later. However, I do get some activation even if i include the
first two scans in the GLM but i'd like to know how it would affect the PEs
and/or other results? would it affect the pre-processing or registration in
any way? Thanks!
-Vish
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