Hi Hauke - at the moment tsplot only does the peristimulus plots for the
peak voxel.....to also plot the mean over an ROI is on our todo
list.....maybe you could edit tsplot.c to do this whilst you're waiting
for FLAME to run ;-)
Regards, Steve.
On Sat, 19 Oct 2002, Hauke R. Heekeren wrote:
> Thanks, Steve,
> Re: FLAME timing: you're right it doesn't matter if it takes hours or
> days (unless there's some deadline getting closer ;-) ), my analysis is
> still running, just wanted to make sure that that's ok.
>
> Re: Peri-stimulus plots look great, Is there a way to make tsplot use a
> mask (ROI) instead of just one voxel?
>
>
> Thanks,
>
> Hauke
>
>
> -----Original Message-----
> From: FSL - FMRIB's Software Library [mailto:[log in to unmask]] On
> Behalf Of Stephen Smith
> Sent: Saturday, October 19, 2002 3:17 AM
> To: [log in to unmask]
> Subject: Re: [FSL] peristimulus plots?
>
> Hi Hauke,
>
> Peristimulus plots are generated for first-level analysis and are found
> by
> clicking on one of the peak voxel time series plots on the main report
> web
> page - this takes you to a new page including peak and average time
> series
> plots for full and reduced models, and then the peristimulus plots.
>
> WRT FLAME timing - it's possible, yes. The timing depends on the number
> of
> first-level anlayses, the number of EVs at group level and the amount of
> activation (the slowest parts of FLAME are only run for voxels which are
> close to or over threshold, to get the highest possible esimation
> accuracy). I don't think in general this is a problem - people don't run
> group-level analyses hundreds of times, so if it takes 30 minutes or 10
> hours, I think that is acceptable?
>
> Thanks :)
>
>
> On Fri, 18 Oct 2002, Hauke Heekeren wrote:
>
> > Hey guys,
> > the new release works quite well, two quick questions though:
> >
> > 1. I can't find the Peri-stimulus plots mentioned in the FEAT doc,
> where
> > are they hidden or how can I get them?
> >
> > 2. I'm trying to run FLAME on a set of 30 first level analyses but
> even
> > after >> 400 min processor time (Dual 1.8 G, 1G RAM) it's still not
> > done with the first cope.feat/ Dir. Is that to be expected?
>
> Stephen M. Smith
> Head of Image Analysis, FMRIB
>
> Oxford University Centre for Functional MRI of the Brain
> John Radcliffe Hospital, Headington, Oxford OX3 9DU, UK
> +44 (0) 1865 222726 (fax 222717)
>
> [log in to unmask] http://www.fmrib.ox.ac.uk/~steve
>
Stephen M. Smith
Head of Image Analysis, FMRIB
Oxford University Centre for Functional MRI of the Brain
John Radcliffe Hospital, Headington, Oxford OX3 9DU, UK
+44 (0) 1865 222726 (fax 222717)
[log in to unmask] http://www.fmrib.ox.ac.uk/~steve
