function [MOTION_VAR] = MOT_ANA_Reftopop(Motion_Matrix,Type)


    switch Type
        case 'Popref'

            for i = 1:size(Motion_Matrix,2)
                MOTION_VAR(:,i) = (Motion_Matrix(:,i)-mean(Motion_Matrix(:,i)))./std(Motion_Matrix(:,i));
            end
            
        otherwise
            
            MOTION_VAR = Motion_Matrix;

    end


    
    
end