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Bug 985 - ft_chantype does not recognize headcoil sensors as such

Status	CLOSED WORKSFORME
Reported	2011-09-22 16:03:00 +0200
Modified	2019-08-10 12:40:30 +0200
Product:	FieldTrip
Component:	realtime
Version:	unspecified
Hardware:	PC
Operating System:	Windows
Importance:	P1 normal
Assigned to:	Jörn M. Horschig
URL:
Tags:
Depends on:
Blocks:
See also:

Jörn M. Horschig - 2011-09-22 16:03:59 +0200

Thus, I hacked ft_realtime_headlocalization to get the headcoils out. However, ft_chantype should recognize the HLC sensors as such. Preliminary solution in ft_realtime_headlocalization: chanindx = strmatch('headloc', ft_chantype(hdr)); % this is a mere hack for the Donders MEG system, I assume a bug in % chantype - Jörn if isempty(chanindx) chanindx = strmatch('HLC', hdr.label); end

Jan-Mathijs Schoffelen - 2011-10-05 09:40:33 +0200

I think this is a good suggestion. Let's discuss in FT-meeting

Jörn M. Horschig - 2011-10-11 16:14:29 +0200

It is a bit strange, because either ft_chantype(hdr) can detect headcoils when reading data on disc or this bug has been fixed. I am 100% sure that it broke in the MEG scanner when using the buffer.

Jörn M. Horschig - 2012-11-28 17:57:39 +0100

I hereby confirm again that it breaks in the lab while using the buffer. In my personal headlocalizer script (which is Arjen's script + the possibility to make a one frame snapshot only rather than a continuous loop) I solved it this way: [~, chanindx] = match_str('headloc', hdr.orig.chantype);

Robert Oostenveld - 2017-03-27 10:30:30 +0200

The ft_realtime_headlocalization function has been running in the DCCN MEG lab for quite some time. So I guess this bug is not pertinent any more.

Robert Oostenveld - 2019-08-10 12:34:20 +0200

This closes a whole series of bugs that have been resolved (either FIXED/WONTFIX/INVALID) for quite some time. If you disagree, please file a new issue on https://github.com/fieldtrip/fieldtrip/issues.