signalTypeIndicator = 'UseICs' may require additional steps for loading in topomaps from .mat files

[3x10e8]

Hello,
I am trying to extract eye blinks from IC components, but some of the eyeCatcher private/*.mat files that need to be loaded for this don't appear to import correctly:

Warning: Variable 'pooledEyeScalpmap' originally saved as a scalpmap cannot
be instantiated as an object and will be read in as a uint32.

The pooledEyeScalpmap.mat file itself is >90M, but the imported vector is only 6x1 uint32.

The issue here might be more eyeCatcher related and not BLINKER related, but I thought I'd ask here since the last IC-related commit here was more recent than the last .mat files pushed to eyeCatcher.

The issue appears to come from the following load lines:

EEG-Blinks/blinker/utilities/+pr/eyeCatch.m

Lines 36 to 38 in 50fb621

	load('pooledEyeScalpmap.mat'); % load pooledEyeScalpmap varaible
	load('eyeChannelWeightNormalizedPart1.mat'); % load eyeChannelWeightNormalizedPart1 variable
	load('eyeChannelWeightNormalizedPart2.mat'); % load eyeChannelWeightNormalizedPart1 variable

Commands used to run BLINKER on an EEGLAB set:

% First ran ICA so IC components would be available to BLINKER:
OUTEEG = pop_runica(ALLEEG)
params = checkBlinkerDefaults(struct(), getBlinkerDefaults(OUTEEG));

% Then updated parameters so BLINKER would use ICs:
params.signalTypeIndicator = 'UseICs';
% removed lines for brevity

[OUTEEG, com, blinks, blinkFits, blinkProperties, ...
                     blinkStatistics, params] = pop_blinker(OUTEEG, params);

Complete error trace seen (in context of the eyeCatch object being created):

Dot indexing is not supported for variables of this type.

Error in pr.eyeCatch (line 44)
            if size(obj.eyeChannelWeightNormalized,1) ~=
            obj.eyeScalpmapDatabase.numberOfScalpmaps

Error in getCandidateICs (line 61)
eyeDetector = pr.eyeCatch;

Error in getCandidateSignals (line 51)
         signalLabels, params] = getCandidateICs(EEG, params);

Error in extractBlinksEEG (line 44)
                signalLabels, params] = getCandidateSignals(EEG, params);

Error in pop_blinker (line 77)
     [blinks, params] = extractBlinksEEG(EEG, params);

Error in eeglab_importdata_blinker (line 151)
                     blinkStatistics, params] = pop_blinker(OUTEEG, params);

Versioning information:

• Blinker v1.2.0 used.
• EEGLAB dev version pulled.
• .mat files downloaded directly from here as they didn't seem to get installed when using EEGLAB's plugin manager to get BLINKER.