It won't provide a visual representation, but you could use a tool called cutoffcalc to help determine the minimum highpass filter that retains a specified amount of variance in your design matrix. See its usage (and the FSL course webpages) for additional information.
David
On Feb 7, 2013, at 12:02 PM, Jon Brock <[log in to unmask]> wrote:
> Hi,
>
> Does anyone know of a stand alone tool/script to visualize the effect of a high pass filter on the frequency spectrum of your design matrix? SPM produces something like this in the design estimation stage but I wondered if FSL or FSL users have developed a similar tool?
>
> Many thanks
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David V. Smith, Ph.D.
Postdoctoral Fellow, Delgado Lab
Department of Psychology
Rutgers University
Newark, NJ 07102
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