function feature = nc_spatial_entropy(spatialMap);

    % FEATURE 3/119: Spatial Entropy, measure of information content of a;
    % spatial distribution.  Narrow distribution = less spatial entropy;
    ICnorm = (spatialMap(:) - mean(spatialMap(:))) / std(spatialMap(:));
    ICentropy = entropy(ICnorm);
    feature = abs(log(ICentropy));
    
end