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Wyszukujesz frazę "synapses" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Synchrony state generation : an approach using stochastic synapses
Autorzy:
El-Laithy, K.
Bogdan, M.
Powiązania:
https://bibliotekanauki.pl/articles/91844.pdf
Data publikacji:
2011
Wydawca:
Społeczna Akademia Nauk w Łodzi. Polskie Towarzystwo Sieci Neuronowych
Tematy:
temporal synchrony
artificial neural network
stochastic synapses
synchrony state generation
Hebbian-based learning
Opis:
In this study, the generation of temporal synchrony within an artificial neural network is examined considering a stochastic synaptic model. A network is introduced and driven by Poisson distributed trains of spikes along with white-Gaussian noise that is added to the internal synaptic activity representing the background activity (neuronal noise). A Hebbian-based learning rule for the update of synaptic parameters is introduced. Only arbitrarily selected synapses are allowed to learn, i.e. update parameter values. Results show that a network using such a framework is able to achieve different states of synchrony via learning. Thus, the plausibility of using stochastic-based models in modeling the neural process is supported. It is also consistent with arguments claiming that synchrony is a part of the memory-recall process and copes with the accepted framework in biological neural systems.
Źródło:
Journal of Artificial Intelligence and Soft Computing Research; 2011, 1, 1; 17-25
2083-2567
2449-6499
Pojawia się w:
Journal of Artificial Intelligence and Soft Computing Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Convergence of Numbers of Synapses and Quantum Foci within Human Brain Space: Quantitative Implications of the Photon as the Source of Cognition
Autorzy:
Persinger, M. A.
Powiązania:
https://bibliotekanauki.pl/articles/412322.pdf
Data publikacji:
2014
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
photons
synapses
Poynting Vector
neuroquantum
recoil energies
Bohr nucleus substitution frequency
consciousness-light field
gravitational-photon equivalence
Opis:
Quantitative solutions involving classical methods indicated that the numbers of quantum foci within the human cerebrum are the same order of magnitude as the numbers of synapses in the cerebral cortices. The Bohr frequency for the magnitude of the quantum associated with the removal of one nucleus from another is within the range of the width of synapse (~1 μm) while the recoil energy from a rest mass photon is equivalent to the energy produced by the entire field of dynamic neurons per second. The intrinsic energy (10-20 J) associated with each action potential is similar to the gravitational potential energy from Planck’s mass applied across 1 μm. Both the endogenous cerebral magnetic field strength which is similar in magnitude to intergalactic intensities and the interaction between weak geomagnetic variations and the cerebrum’s electric dipole current are associated with photon flux densities in the order (10-11 W∙m-2) that have been measured in the laboratory. The perspective of the human cerebral volume as a field of foci of photon quanta offers different perspectives for the intrinsic nature of consciousness and cognition and their influence by phenomena from astronomical origins.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2014, 11, 1; 59-66
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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