Entrainment of the Self-sustained oscillation in aPhysarum polycephalumStrand as a One-dimensionally Coupled Oscillator System

Takahashi, Kengo; Uchida, Go; Hu, Z. S.; Tsuchiya, Y.

doi:10.1006/jtbi.1996.0260

Cited by 17 publications

(9 citation statements)

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“…The natural oscillating frequency of the Physarum polycephalum appears to match the frequency recorded optically [4,6,35,41] and electronically [3], with a period ranging from 90 to 170 seconds before any chemical is added. This suggests that recording the electrical potential of a protoplasmic tube between two oat flakes on agar is a reliable method of measuring protoplasmic shuttle streaming.…”

Section: Discussionmentioning

confidence: 62%

Towards slime mould chemical sensor: Mapping chemical inputs onto electrical potential dynamics of Physarum Polycephalum

Whiting

Costello

Adamatzky

2014

Sensors and Actuators B: Chemical

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Plasmodium of slime mould Physarum polycephalum is a large single celled organism visible unaided by the eye. This slime mould is capable of optimising the shape of its protoplasmic networks in spatial configurations of attractants and repellents. Such adaptive behaviour can be interpreted as computation. When exposed to attractants and repellents, Physarum changes patterns of its electrical activity. We experimentally derived a unique one-to-one mapping between a range of selected bioactive chemicals and patterns of oscillations of the slime mould's extracellular electrical potential. This direct and rapid change demonstrates detection of these chemicals in a similar manner to a biological contactless chemical sensor. We believe results could be used in future designs of slime mould based chemical sensors and computers.

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Section: Discussionmentioning

confidence: 62%

Towards slime mould chemical sensor: Mapping chemical inputs onto electrical potential dynamics of Physarum Polycephalum

Whiting

Costello

Adamatzky

2014

Sensors and Actuators B: Chemical

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“…The results also shed light onto spatial development of the plasmodium. Previously published models dealt with simulation of the plasmodium as coupled mechanical [21,[24][25][26]28] and chemical oscillators [31], where signal transmission in response to stimulation is induced by a shift of oscillation [1,14]. These models did not give an adequate answer to how exactly propagation of the plasmodium's pseudopodia occurs.…”

Section: Discussionmentioning

confidence: 99%

If BZ medium did spanning trees these would be the same trees as Physarum built

Adamatzky

2009

Physics Letters A

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“…There have been many studies of patterns of rhythmic contractions in relation to cell behavior (Matsumoto et al, 1988;Miyake et al, 1996;Takamatsu et al, 2001;Oster and Odell, 1984;Teplov et al, 1991;Takahashi et al, 1997;Tero et al, 2005). However we will not consider this matter further here: instead we propose to shed light on the regulation of tube thickness by flux.…”

Section: Physiological Backgroundmentioning

confidence: 99%

A mathematical model for adaptive transport network in path finding by true slime mold

Tero

Kobayashi

Nakagaki

2007

Journal of Theoretical Biology

369

354

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We describe here a mathematical model of the adaptive dynamics of a transport network of the true slime mold Physarum polycephalum, an amoeboid organism that exhibits path-finding behavior in a maze. This organism possesses a network of tubular elements, by means of which nutrients and signals circulate through the plasmodium. When the organism is put in a maze, the network changes its shape to connect two exits by the shortest path. This process of path-finding is attributed to an underlying physiological mechanism: a tube thickens as the flux through it increases. The experimental evidence for this is, however, only qualitative. We constructed a mathematical model of the general form of the tube dynamics. Our model contains a key parameter corresponding to the extent of the feedback regulation between the thickness of a tube and the flux through it. We demonstrate the dependence of the behavior of the model on this parameter.

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Entrainment of the Self-sustained oscillation in aPhysarum polycephalumStrand as a One-dimensionally Coupled Oscillator System

Cited by 17 publications

References 0 publications

Towards slime mould chemical sensor: Mapping chemical inputs onto electrical potential dynamics of Physarum Polycephalum

Towards slime mould chemical sensor: Mapping chemical inputs onto electrical potential dynamics of Physarum Polycephalum

If BZ medium did spanning trees these would be the same trees as Physarum built

A mathematical model for adaptive transport network in path finding by true slime mold

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