function senstypes=cosmo_meeg_senstype_collection()
% return supported MEEG acquisition systems and their channel labels
%
% senstypes=cosmo_meeg_senstypes
%
% Output:
% senstypes struct where the fieldnames are the names
% of the supported MEEG acquisition systems.
% each field has fields:
% .label channel labels
% .sens short label for acquisition system
% .type one of 'meg','meg_planar','meg_axial',
% or 'eeg'. '_combined' entries have the
% 'meg' type.
% Each fieldname can have a postfix:
% '_planar_combined' combined planar
% labels; .label is Nx1 for N
% sensor locations
% '_planar' planar pair
% labels; .label is Nx2
% '_mag' magnetometers, .label
% is Nx1. Currently this is only
% provided for neuromag systems
%
% Example:
% % (This example requires FieldTrip)
% cosmo_skip_test_if_no_external('fieldtrip');
% %
% senstypes=cosmo_meeg_senstype_collection();
% %
% % show neuromag306 MEG magnetometers
% cosmo_disp(senstypes.neuromag306alt_mag)
% %|| .label
% %|| { 'MEG0111'
% %|| 'MEG0121'
% %|| 'MEG0131'
% %|| :
% %|| 'MEG2621'
% %|| 'MEG2631'
% %|| 'MEG2641' }@102x1
% %|| .sens
% %|| 'neuromag306'
% %|| .type
% %|| 'meg_axial'
% %
% % show neuromag306 MEG planar gradiometers
% cosmo_disp(senstypes.neuromag306alt_planar)
% %|| .label
% %|| { 'MEG0112' 'MEG0113'
% %|| 'MEG0122' 'MEG0123'
% %|| 'MEG0132' 'MEG0133'
% %|| : :
% %|| 'MEG2622' 'MEG2623'
% %|| 'MEG2632' 'MEG2633'
% %|| 'MEG2642' 'MEG2643' }@102x2
% %|| .sens
% %|| 'neuromag306'
% %|| .type
% %|| 'meg_planar'
% %
% % show neuromag306 MEG combined planar gradiometers
% cosmo_disp(senstypes.neuromag306alt_planar_combined)
% %|| .label
% %|| { 'MEG0112+0113'
% %|| 'MEG0122+0123'
% %|| 'MEG0132+0133'
% %|| :
% %|| 'MEG2622+2623'
% %|| 'MEG2632+2633'
% %|| 'MEG2642+2643' }@102x1
% %|| .sens
% %|| 'neuromag306'
% %|| .type
% %|| 'meg_planar_combined'
% %
% % show BTI 148 planar gradiometers
% cosmo_disp(senstypes.bti148_planar)
% %|| .label
% %|| { 'A1_dH' 'A1_dV'
% %|| 'A2_dH' 'A2_dV'
% %|| 'A3_dH' 'A3_dV'
% %|| : :
% %|| 'A146_dH' 'A146_dV'
% %|| 'A147_dH' 'A147_dV'
% %|| 'A148_dH' 'A148_dV' }@148x2
% %|| .sens
% %|| 'bti148'
% %|| .type
% %|| 'meg_planar'
%
% Note:
% - this function requires FieldTrip, as it uses its collection of
% layouts
% - this function caches previously read layouts, for optimization
% reasons. run "clear functions" to reset the cahce.
%
% # For CoSMoMVPA's copyright information and license terms, #
% # see the COPYING file distributed with CoSMoMVPA. #
