A system for mapping the electrical activity of the heart, the system comprising: a catheter shaft, wherein a plurality of electrodes is coupled thereto, and wherein the plurality of electrodes includes a first electrode and a second electrode; a processor , wherein the processor is capable of: collecting a first signal corresponding to the first electrode and a second signal corresponding to the second electrode, wherein collecting the first and second signals occurs over a time period; generating a first time-frequency distribution corresponding to the first signal; identifying a first dominant frequency value occurring at a first dominant frequency and a first time point; generating a second time-frequency distribution corresponding to the second signal; identifying a second dominant frequency value occurring at a second dominant frequency and a second time point; and determining an attraction point , wherein the attraction point is defined when the first dominant frequency value substantially relates to the second dominant frequency value, wherein the processor is configured to determine a dominant frequency threshold value, that must be met in order to use the dominant frequency value when searching for attraction points, wherein the maximum frequency value and/or the local maximum frequency value is greater than or substantially equal to the dominant frequency threshold value. a catheter shaft, wherein a plurality of electrodes is coupled thereto, and wherein the plurality of electrodes includes a first electrode and a second electrode; a processor , wherein the processor is capable of: collecting a first signal corresponding to the first electrode and a second signal corresponding to the second electrode, wherein collecting the first and second signals occurs over a time period; generating a first time-frequency distribution corresponding to the first signal; identifying a first dominant frequency value occurring at a first dominant frequency and a first time point; generating a second time-frequency distribution corresponding to the second signal; identifying a second dominant frequency value occurring at a second dominant frequency and a second time point; and determining an attraction point , wherein the attraction point is defined when the first dominant frequency value substantially relates to the second dominant frequency value, wherein the processor is configured to determine a dominant frequency threshold value, that must be met in order to use the dominant frequency value when searching for attraction points, wherein the maximum frequency value and/or the local maximum frequency value is greater than or substantially equal to the dominant frequency threshold value. collecting a first signal corresponding to the first electrode and a second signal corresponding to the second electrode, wherein collecting the first and second signals occurs over a time period; generating a first time-frequency distribution corresponding to the first signal; identifying a first dominant frequency value occurring at a first dominant frequency and a first time point; generating a second time-frequency distribution corresponding to the second signal; identifying a second dominant frequency value occurring at a second dominant frequency and a second time point; and determining an attraction point , wherein the attraction point is defined when the first dominant frequency value substantially relates to the second dominant frequency value, wherein the processor is configured to determine a dominant frequency threshold value, that must be met in order to use the dominant frequency value when searching for attraction points, wherein the maximum frequency value and/or the local maximum frequency value is greater than or substantially equal to the dominant frequency threshold value. <EOS>