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Bug 772 - cannot topo- and multiplot neuromag data

Reported 2011-06-21 09:06:00 +0200
Modified 2011-07-13 14:47:02 +0200
Product: FieldTrip
Component: plotting
Version: unspecified
Hardware: PC
Operating System: Windows
Importance: P1 normal
Assigned to: Arjen Stolk
Depends on:
See also:

Arjen Stolk - 2011-06-21 09:06:08 +0200

This bug derives from a problem mentioned at the discussion list (Kambiz Tavabi). In the user case, ft_multiplotER showed empty axes. In my case (most recent Ft version), an error was thrown saying there was a mismatch between the data and the layout. It turns out that cfg.layout = 'neuromag306mag.lay' or 'neuromag306planar.lay' or 'neuromag306all.lay', seem to work fine (*cmb.lay fails). But NM306*.lay layouts do not work. When looking into the above mentioned layout files, I see what's causing the problem. The NM306*.lay layouts have different labels, i.e. they say just the number of the channels whereas the neuromag306*.lay layouts have full labels with 'MEG' prefixes. In conclusion, the user should try specifying one of the neuromag306*.lay layouts when plotting (and automatic layout selection) neuromag data is problematic.

Robert Oostenveld - 2011-06-21 09:53:07 +0200

depending on how the data is read (i.e. which with low-level toolbox), the channel labels will be either "MEG xxx" or "xxx". That is why there are different layouts.

Robert Oostenveld - 2011-07-13 14:47:02 +0200

changed the status for a whole bunch of resolved bugs to CLOSED