>>14
The following is an interesting hypothesis.
Nervous activities of a brain at chaotic state can quickly reply to various informations.
Just after an information is caught, the nervous activity immediately moves into a kind of entrainment.
And, if an information is newly given to the system, the system itself will start to look for an information corresponding to the given information through chaotic traveling over respective states.
Accordingly, if a kind of sensory system to be able to quickly process various informations from the outside is produced under artificial chaos, the result can contribute to not only composing a sensory system different from usual one but also making clear roles of chaos on biological systems.
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>>15
• Disordered vibrations caused by direct currents
If this membrane is put into potassium chloride solutions at low concentration and some direct current ( scores nanoA 〜 100 nanoA ) is applied to that, disordered oscillations on membranous potential of 100 mV in amplitude appear.
These irregular vibrations are characterized by correlative dimensions.
Correlative dimension is a quantity to measure the degree of freedom of the system by estimating the correlation between events at different hours in the considered phenomenon.
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>>16
Namely, an effective degree of freedom of the considered system is reflected in the value of correlative dimension.
If this value takes a non-integer value, the system becomes complex.
※ In general, when the system is at chaos, its correlative dimension has a non-integer.
In the case of excitable lipid membrane of DOPH, surprisingly, as the applied direct current is raised, its correlative dimension namely effective degree of freedom of the system also increases.
※ In this case, its correlative dimension turns to be about 5.1 for an applied current of 60 nanoA .
Then, a high dimensional chaos appears.
Observing other results, we find out that as the electric current applied to the membrane increases, the waveform of the vibration remarkably becomes to be disordered.
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>>17
Adding various taste-substances in the solution touching with this membrane at applied current of 60 nanoA , we find out that oscillating states also are varied according to added substances.
※ In those cases, correlative dimensions get to be about 5 .
Namely, correlative dimensions of these disordered vibrations depend on concentrations of added taste-substances.
And, the dependencies of correlative dimension on concentration are variable according to kinds of taste-substance.
So, we can draw informations of taste from such chaotic variations.
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>>18-19
In the near future, we may be able to instantly 'distinguish tastes' through waveforms shown in a computer-screen.
Furthermore, we may be able to immediately sense tastes of foods through auditory perception by putting a microsensor with lipid membrane to the edge of dish and transforming output waveforms from the sensor into sounds.
An example introduced here can be regarded as one example of the simplest artificial self-organizing systems because of the appearance of non-equilibrium phenomena including spontaneous formations of membranes and excitations.
Such an example can be developed to the field of high intelligent component including integrated switching component, sensory component in smarter level by applying with technologies to produce semiconductors.
※ From a basic textbook about non-linear phenomena and non-equilibrium systems which was published in some country in about 1999 〜 2000 .
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