Hi,
On 18 Mar 2006, at 21:17, Martin M Monti ([log in to unmask]) wrote:
> Steven
>
> thanks, but I may need you to unpack that ina more "operative
> manner", so to speak.
>
> So the idea would be to feed in as input (say) the cope1.feat
> folder (that contains the result of my group-level analysis), then
> select the filtered_func_data [right below the folder input box],
> and use any ROI mask I have (or single coordinate). Is this what
> you meant?
No - run Featquery on one or more of the first-level FEAT output
directories, using higher-level FEAT-derived images or co-ordinates
for the masking.
> Also, there is one thing that is not clear: even if I use single
> voxel coordinates I'm required to select a mask. I thought the mask
> file would be ALTERNATIVE to the voxel coords. Why is the former
> required even in the coordinates selection case?
RTFM ;-) you still need the mask image so that Featquery knows what
space the coordinates refer to.
Cheers, Steve.
>
> Thanks,
>
> cheers
>
> Martin
> ----- Original Message -----
> From: Steve Smith <[log in to unmask]>
> Date: Saturday, March 18, 2006 2:22 am
> Subject: Re: [FSL] Peristimulus Plot
> To: [log in to unmask]
>
>> Hi - that's right - if you run Featquery at higher-level you get
>> "timeseries" analysis at higher level - meaning the timeseries
>> relate
>> to the different subject IDs, so there's no meaning to the idea of
>>
>> peristimulus plots.
>>
>> However, it's easy to take higher-level-based group-level
>> activation
>> masks or voxel coordinates and feed them into first-level
>> Featquery
>> runs - in which case you then do get the first-level peristimulus
>> plots.
>> Cheers, Steve.
>>
>>
>> On 17 Mar 2006, at 22:28, Martin M. Monti wrote:
>>
>>> Hi,
>>>
>>> I'm trying to get peristimulus plots for some ROIs. Now, I
>> tried
>>> using featquery, which outputs the full plots, but not the peri-
>>> stimulus one!
>>>
>>> I looked in my group data report, and I see that it too does not
>>
>>> include a peristimulus plot, which I seem to only have in my
>> first-
>>> level folders.
>>>
>>> Any idea? (I'm not getting any specific error message from
>>> featquery, and I seem to have it set up according to your website).
>>>
>>> Also, what is on the X-axis of the Full plots? I have 87TRs per
>>> single EPI (x 8 EPIs per subject x 12 subjects), whereas the
>> Full
>>> plots are always up to a value of 25.
>>>
>>> Could I please get a little clarification?
>>>
>>> Thanks,
>>>
>>> cheers
>>>
>>> Martin
>>> --------------------------
>>> "Upward, not Northward!" [Edwin Abbott - FlatLand]
>>>
>>> I became insane, with long intervals of horrible sanity. [E.A. Poe]
>>>
>>> Would you tell me, please, which way I ought to go from here?
>>> ''That depends a good deal on where you want to get to.'' Said
>> the
>>> Cat. I don't much care where -- Said Alice. Then it doesn't
>> matter
>>> which way you go, said the Cat. [Lewis Carroll]
>>>
>>> Che si trattasse di una gara? ..Un colpo il mondo e un colpo tu,
>> a
>>> chi stupiva un po' di piu'.. [Per Un Vecchio Bambino - Roberto
>>> Vecchioni]
>>>
>>> --------------------------------------------
>>> Martin M. Monti
>>> Princeton University
>>> Department of Psychology
>>> Green Hall 3-S-8
>>> (609) 258-5679
>>> www.webmartin.net
>>> --------------------------------------------
>>>
>>
>>
>> -------------------------------------------------------------------
>> -----
>> ---
>> Stephen M. Smith, Professor of Biomedical Engineering
>> Associate Director, Oxford University FMRIB Centre
>>
>> FMRIB, JR 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, Professor of Biomedical Engineering
Associate Director, Oxford University FMRIB Centre
FMRIB, JR Hospital, Headington, Oxford OX3 9DU, UK
+44 (0) 1865 222726 (fax 222717)
[log in to unmask] http://www.fmrib.ox.ac.uk/~steve
------------------------------------------------------------------------
---
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