meg-pd function "rawdata"

[Laurence Hunt]

Hi Masaki,

The MNE-based functions should be ready to use, to read raw fif data -
but we've only developed them over the last week or two, so please let
me know if you come across any bugs, or whether it solves the problem
you encountered with rawdata. We should have a version that's able to
read evoked .fif files also in the next week or two.

Regards,
Laurence


On 4 Feb 2009, at 16:50, Robert Oostenveld wrote:

> Hi Masaki
>
> On 4 Feb 2009, at 16:55, Masaki Maruyama wrote:
>
>> After 102.1 second the output delays by 0.1 second, which seems to
>> be a
>> causal of the wrong time detection of trials. I cannot find out why
>> it happened
>> in the MEG recording, but I like to see averaged fields from the
>> data. Could
>> you please give me advices?
>>
>> Thank you in advance for your kind advices.
>
> It seems due to a (rounding-off?) bug in rawdata. The fif access mex
> files are causing a lot of problems, and that is why we recently
> decided to switch to a new implementation for reading the fif files
> in fieldtrip.
>
> The new implementation for fieldtrip is based on low-level functions
> from the MNE toolbox by Matti Hamalainen:
>  see http://www.nmr.mgh.harvard.edu/martinos/userInfo/data/sofMNE.php
> and try the fieldtrip functions read_header and read_data with an
> explicit specification of headerformat=neuromag_nme and
> dataformat=neuromag_mne respectively. That should cause the low-
> level readers from Matti to be used. Also read_event should be able
> to give you the correct trial markers.
>
> Laurence (CC) should be able to tell you more about the current
> status of this new implementation.
>
> best regards,
> Robert
>
> PS note that the MNE toolbox functions are not released together
> with fieldtrip, due to licensing limitations.
>

===========================================
Laurence Hunt, DPhil Student
Centre for Functional MRI of the Brain (FMRIB),
University of Oxford
lhunt at fmrib.ox.ac.uk
Phone: (+44)1865-(2)22738
===========================================

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