Hello and Happy New Year to all!
I was wondering if anyone had any idea/advice/suggestions on this topic now
that the holidays are over... :-)
Best,
Stephane
On Mon, 29 Dec 2008 19:55:41 +0000, Stephane Jacobs <[log in to unmask]> wrote:
>Hello FSL users and experts,
>
>I know this point has been addressed several times on the list, but after
>reading carefully the previous threads, I still need some clarification as
>to how best to choose the high pass filter cut-off in the case of 2 block
>design studies I'm working on.
>
>In the first case, I have a classic ABAB design with the period between the
>onset of 2 identical conditions varying between 52 and 60s. So, following
>the manual, I was tempted to set the HPF cut-off at 60, but then recent
>messages point out that the manual is not up to date and that the current
>recommendation is not to go under 100
>(https://www.jiscmail.ac.uk/cgi-bin/webadmin?A2=ind0808&L=FSL&D=0&P=193438).
>Should I just go with the default 100 then?
>
>In my second study, we have a total of 6 conditions alternated in randomized
>order and repeated twice within each run. Each of the 6 conditions is
>presented in the first half of the block, and then a second time in the
>second half of the block. The period of time between the onset of the 2
>occurrences of the same condition is therefore not fixed nor predictable,
>but it can be as long as 319s. In this case, should I set the cut-off at
>something like 320?
>
>Thanks a lot for any help or advice!
>
>Best,
>
>Stephane
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