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ENTRAINMENT BETWEEN HEART RATE AND WEAK NONINVASIVE FORCING

Laboratory of Nonlinear Dynamics, Physics Department, Saratov State University, Astrakhanskaya str. 83, 410071 Saratov, Russia

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A. G. BALANOV

Laboratory of Nonlinear Dynamics, Physics Department, Saratov State University, Astrakhanskaya str. 83, 410071 Saratov, Russia

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N. B. JANSON

Laboratory of Nonlinear Dynamics, Physics Department, Saratov State University, Astrakhanskaya str. 83, 410071 Saratov, Russia

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N. B. IGOSHEVA

Laboratory of Nonlinear Dynamics, Physics Department, Saratov State University, Astrakhanskaya str. 83, 410071 Saratov, Russia

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G. V. BORDYUGOV

Laboratory of Nonlinear Dynamics, Physics Department, Saratov State University, Astrakhanskaya str. 83, 410071 Saratov, Russia

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https://doi.org/10.1142/S0218127400001468Cited by:58 (Source: Crossref)

Abstract

We demonstrate that the heart rate of a healthy human can be synchronized by means of weak external noninvasive forcing in the form of a sequence of sound and light pulses, being either periodic or aperiodic, the latter forcing given by interbeat intervals of the heart of another subject. The phenomenon of phase locking of n:m type is observed for both situations in about 90% of our experiments. The plot for the ratio of forcing frequency to the average frequency of response versus detuning possesses a plateau and is in agreement with classical synchronization theory.