Hi Liora
>Hi,
>
>I'm very confused. I run a block design and the times I'm entering into SPM are
>in units of scans.
>What should be the onset of the first scan 0 or 1 ??
>
>
the 1st scan is 0
>I found 2 contradicting views in the mailing list (maybe they are not
>contradicting and its only my poor understanding .. )
>Karl Friston says to start from zero:
>http://www.jiscmail.ac.uk/cgi-bin/wa.exe?A2=ind99&L=SPM&P=R59956&I=-3
>
>while Rik Henson suggested to start from one :
>
>http://www.jiscmail.ac.uk/cgi-bin/wa.exe?A2=ind98&L=SPM&P=R13096&I=-3
>
>
note that one of the points raised by Rik is the possible misfit of the
data if you have a long TR ..
best
cyril
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