Dear Eric,
There is a bug (one character typo) for large file support on Windows in
the latest update of SPM12, see:
https://www.jiscmail.ac.uk/cgi-bin/webadmin?A2=SPM;1c7e760f.1904
This will be fixed in the next set of updates that should take place
later this month but I will send you a link to the current development
version in the meantime.
Best regards,
Guillaume.
On 07/11/2019 20:42, Eric Rawls wrote:
> This is in SPM12 running in matlab r2018b.
> The computer runs Windows 10 64-bit, and the processor is an intel core
> i7 @ 2.6 GHz.
> It has 32 GB of ram.
> The files reside nowhere special, they are in my matlab folder in documents.
> To get the error message, I used SPM's gui, clicked display, navigated
> to the file, type 1:1200 in the "volumes" box (to display all 1200
> rather than the default 1). Anytime I try to use the gui to display
> volumes further than 10, it gives the error I mentioned. But if I ask
> SPM to display any of the first 10 volumes there is no issue.
> Eric
>
> On Thu, Nov 7, 2019 at 2:05 PM Ashburner, John <[log in to unmask]
> <mailto:[log in to unmask]>> wrote:
>
> Which release of SPM? What sort of computer/MATLAB (32 bit / 64
> bit)? Do the files reside on any special sort of disk? What did you
> do to get the error message?
>
> Older software/hardware struggled with images greater than about
> 2Gbytes (because that's about the biggest offset into a file that
> can be represented by a signed 32 bit integer), but more recent SPM
> and MATLAB versions (and hardware) tend not to be limited this way.
> Even so, its strange that it can't read past the 10th volume in the
> 4D file. This makes me think that the data might be residing on
> some unusual type of disk storage that doesn't memory map properly.
>
> Best regards,
> -John
>
> ------------------------------------------------------------------------
> *From:* SPM (Statistical Parametric Mapping) <[log in to unmask]
> <mailto:[log in to unmask]>> on behalf of Eric Rawls
> <[log in to unmask] <mailto:[log in to unmask]>>
> *Sent:* 07 November 2019 19:16
> *To:* [log in to unmask] <mailto:[log in to unmask]>
> <[log in to unmask] <mailto:[log in to unmask]>>
> *Subject:* [SPM] Issue reading some volumes from HCP resting-state data
>
> Hi all,
> I'm having an odd problem with SPM. I am trying to read volumes from
> the WU-Minn Human Connectome Project resting-state data (1200
> volumes, .72 s TR, roughly 4 GB in size).
> SPM reads volumes 1-10 (of 1200) just fine, but rejects reading
> volumes 11-1200.
> The message conveyed through matlab is
>
> Cannot access file "C:\Users\localpath\rfMRI_REST1_LR.nii".
> Error using spm_slice_vol
> File too small.
>
> I thought the file might be corrupted, but it does not seem to be. I
> can read any of the 1200 volumes in MRICron and in Connectome
> Workbench, so this problem seems specific to SPM.
> Has anybody else had issues like this? How did you overcome it?
> Thanks
> --
> Eric Rawls, Ph.D.
> NIMH T32 Postdoctoral Fellow
> Medical Discovery Team for Addiction
> Department of Psychiatry and Behavioral Sciences
> University of Minnesota Medical School
> [log in to unmask] <mailto:[log in to unmask]>
>
>
>
> --
> Eric Rawls, Ph.D.
> NIMH T32 Postdoctoral Fellow
> Neuroimaging and Addiction Lab
> Department of Psychiatry and Behavioral Sciences
> University of Minnesota Medical School
> [log in to unmask] <mailto:[log in to unmask]>
--
Guillaume Flandin, PhD
Wellcome Centre for Human Neuroimaging
UCL Queen Square Institute of Neurology
London WC1N 3BG
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