[FieldTrip] What's maxfilter when read .fif file

Peter Goodin pgoodin at swin.edu.au
Mon Mar 3 09:55:58 CET 2014

Hi Xiao,

Maxfilter is a preprocessing step / software package for data coming from MEG systems by Elekta (fif format) (see http://www.megwiki.org/images/a/aa/MaxFilter-2.0.pdf for a description).

In short you need to run your data through the Maxfilter software (which should have been provided by Elekta) before you can do anything with it.


Peter Goodin,
BSc (Hons), Ph.D Candidate.

Brain and Psychological Sciences Research Centre (BPsych)
Swinburne University,
Hawthorn, Vic, 3122

Monash Alfred Psychiatry Research Centre (MAPrc)
Level 4, 607 St Kilda Road,
Melbourne 3004
From: fieldtrip-bounces at science.ru.nl [fieldtrip-bounces at science.ru.nl] on behalf of tongxiao meng [mengtongxiao at gmail.com]
Sent: Monday, 3 March 2014 6:01 PM
To: fieldtrip
Subject: [FieldTrip] What's maxfilter when read .fif file

Dear all:
I use the ''ft_read_data'' code read .fif file by fieldtrip
I get the following error message:
''Maxshield data has not had maxfilter applied to it - cannot be read by fieldtrip.  Apply Neuromag maxfilter before converting to fieldtrip format.''

What should I do or Is there some Matlab codes to read .fif file ?

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