Spontaneous switching of frequency-locking by periodic stimulus in oscillators of plasmodium of the true slime mold

Atsuko Takamatsu, T. Yamamoto, T. Fujii

    Research output: Contribution to journalArticle

    6 Citations (Scopus)

    Abstract

    Microfabrication technique was used to construct a model system with a living cell of plasmodium of the true slime mold, Physarum polycephalum, a living coupled oscillator system. Its parameters can be systematically controlled as in computer simulations, so that results are directly comparable to those of general mathematical models. As the first step, we investigated responses in oscillatory cells, the oscillators of the plasmodium, to periodic stimuli by temperature changes to elucidate characteristics of the cells as nonlinear systems whose internal dynamics are unknown because of their complexity. We observed that the forced oscillator of the plasmodium show 1:1, 2:1, 3:1 frequency locking inside so-called Arnold tongues regions as well as in other nonlinear systems such as chemical systems and other biological systems. In addition, we found spontaneous switching behavior from certain frequency locking states to other states, even under certain fixed parameters. This technique can be applied to more complex systems with multiple elements, such as coupled oscillator systems, and would be useful to investigate complicated phenomena in biological systems such as information processing.

    Original languageEnglish
    Pages (from-to)133-140
    Number of pages8
    JournalBioSystems
    Volume76
    Issue number1-3
    DOIs
    Publication statusPublished - 2004 Aug

    Fingerprint

    Myxomycetes
    slime mould
    Frequency Locking
    Myxogastrea
    Plasmodium
    Biological systems
    Fungi
    Nonlinear systems
    information processing
    Microfabrication
    Coupled Oscillators
    Biological Systems
    Physarum polycephalum
    computer simulation
    Microtechnology
    Biological Phenomena
    Large scale systems
    Cell
    Nonlinear Systems
    Cells

    Keywords

    • Arnold tongue
    • Frequency locking
    • Microfabrication
    • Nonlinear oscillator
    • Physarum polycephalum

    ASJC Scopus subject areas

    • Ecology, Evolution, Behavior and Systematics
    • Biotechnology
    • Drug Discovery

    Cite this

    Spontaneous switching of frequency-locking by periodic stimulus in oscillators of plasmodium of the true slime mold. / Takamatsu, Atsuko; Yamamoto, T.; Fujii, T.

    In: BioSystems, Vol. 76, No. 1-3, 08.2004, p. 133-140.

    Research output: Contribution to journalArticle

    @article{2b91bcd88b644ac89ecbfbd46240db2b,
    title = "Spontaneous switching of frequency-locking by periodic stimulus in oscillators of plasmodium of the true slime mold",
    abstract = "Microfabrication technique was used to construct a model system with a living cell of plasmodium of the true slime mold, Physarum polycephalum, a living coupled oscillator system. Its parameters can be systematically controlled as in computer simulations, so that results are directly comparable to those of general mathematical models. As the first step, we investigated responses in oscillatory cells, the oscillators of the plasmodium, to periodic stimuli by temperature changes to elucidate characteristics of the cells as nonlinear systems whose internal dynamics are unknown because of their complexity. We observed that the forced oscillator of the plasmodium show 1:1, 2:1, 3:1 frequency locking inside so-called Arnold tongues regions as well as in other nonlinear systems such as chemical systems and other biological systems. In addition, we found spontaneous switching behavior from certain frequency locking states to other states, even under certain fixed parameters. This technique can be applied to more complex systems with multiple elements, such as coupled oscillator systems, and would be useful to investigate complicated phenomena in biological systems such as information processing.",
    keywords = "Arnold tongue, Frequency locking, Microfabrication, Nonlinear oscillator, Physarum polycephalum",
    author = "Atsuko Takamatsu and T. Yamamoto and T. Fujii",
    year = "2004",
    month = "8",
    doi = "10.1016/j.biosystems.2004.05.008",
    language = "English",
    volume = "76",
    pages = "133--140",
    journal = "BioSystems",
    issn = "0303-2647",
    publisher = "Elsevier Ireland Ltd",
    number = "1-3",

    }

    TY - JOUR

    T1 - Spontaneous switching of frequency-locking by periodic stimulus in oscillators of plasmodium of the true slime mold

    AU - Takamatsu, Atsuko

    AU - Yamamoto, T.

    AU - Fujii, T.

    PY - 2004/8

    Y1 - 2004/8

    N2 - Microfabrication technique was used to construct a model system with a living cell of plasmodium of the true slime mold, Physarum polycephalum, a living coupled oscillator system. Its parameters can be systematically controlled as in computer simulations, so that results are directly comparable to those of general mathematical models. As the first step, we investigated responses in oscillatory cells, the oscillators of the plasmodium, to periodic stimuli by temperature changes to elucidate characteristics of the cells as nonlinear systems whose internal dynamics are unknown because of their complexity. We observed that the forced oscillator of the plasmodium show 1:1, 2:1, 3:1 frequency locking inside so-called Arnold tongues regions as well as in other nonlinear systems such as chemical systems and other biological systems. In addition, we found spontaneous switching behavior from certain frequency locking states to other states, even under certain fixed parameters. This technique can be applied to more complex systems with multiple elements, such as coupled oscillator systems, and would be useful to investigate complicated phenomena in biological systems such as information processing.

    AB - Microfabrication technique was used to construct a model system with a living cell of plasmodium of the true slime mold, Physarum polycephalum, a living coupled oscillator system. Its parameters can be systematically controlled as in computer simulations, so that results are directly comparable to those of general mathematical models. As the first step, we investigated responses in oscillatory cells, the oscillators of the plasmodium, to periodic stimuli by temperature changes to elucidate characteristics of the cells as nonlinear systems whose internal dynamics are unknown because of their complexity. We observed that the forced oscillator of the plasmodium show 1:1, 2:1, 3:1 frequency locking inside so-called Arnold tongues regions as well as in other nonlinear systems such as chemical systems and other biological systems. In addition, we found spontaneous switching behavior from certain frequency locking states to other states, even under certain fixed parameters. This technique can be applied to more complex systems with multiple elements, such as coupled oscillator systems, and would be useful to investigate complicated phenomena in biological systems such as information processing.

    KW - Arnold tongue

    KW - Frequency locking

    KW - Microfabrication

    KW - Nonlinear oscillator

    KW - Physarum polycephalum

    UR - http://www.scopus.com/inward/record.url?scp=4444244049&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=4444244049&partnerID=8YFLogxK

    U2 - 10.1016/j.biosystems.2004.05.008

    DO - 10.1016/j.biosystems.2004.05.008

    M3 - Article

    VL - 76

    SP - 133

    EP - 140

    JO - BioSystems

    JF - BioSystems

    SN - 0303-2647

    IS - 1-3

    ER -