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- Abdelmalik Moujahid, Alicia D'Anjou
- Front. Comput. Neurosci.
- 2012

Fundamentally, action potentials in the squid axon are consequence of the entrance of sodium ions during the depolarization of the rising phase of the spike mediated by the outflow of potassium ions during the hyperpolarization of the falling phase. Perfect metabolic efficiency with a minimum charge needed for the change in voltage during the action… (More)

- A Moujahid, A d'Anjou, F J Torrealdea, F Torrealdea
- Physical review. E, Statistical, nonlinear, and…
- 2011

The generation of spikes by neurons is energetically a costly process and the evaluation of the metabolic energy required to maintain the signaling activity of neurons a challenge of practical interest. Neuron models are frequently used to represent the dynamics of real neurons but hardly ever to evaluate the electrochemical energy required to maintain that… (More)

- C Sarasola, F J Torrealdea, A D'Anjou, A Moujahid, M Graña
- Physical review. E, Statistical, nonlinear, and…
- 2004

In this paper we present a method based on a generalized Hamiltonian formalism to associate to a chaotic system of known dynamics a function of the phase space variables with the characteristics of an energy. Using this formalism we have found energy functions for the Lorenz, Rössler, and Chua families of chaotic oscillators. We have theoretically analyzed… (More)

- F J Torrealdea, A d'Anjou, M Graña, C Sarasola
- Physical review. E, Statistical, nonlinear, and…
- 2006

We have deduced an energy function for a Hindmarsh-Rose model neuron and we have used it to evaluate the energy consumption of the neuron during its signaling activity. We investigate the balance of energy in the synchronization of two bidirectional linearly coupled neurons at different values of the coupling strength. We show that when two neurons are… (More)

- Abdelmalik Moujahid, Alicia D'Anjou, Manuel Graña
- Front. Comput. Neurosci.
- 2014

It has long been known that neurons in the brain are not physiologically homogeneous. In response to current stimulus, they can fire several distinct patterns of action potentials that are associated with different physiological classes ranging from regular-spiking cells, fast-spiking cells, intrinsically bursting cells, and low-threshold cells. In this… (More)

- F. Xabier Albizuri, Alicia D'Anjou, Manuel Graña, Francisco Javier Torrealdea, Carmen Hernández
- IEEE Trans. Neural Networks
- 1995

In this paper we give a formal definition of the high-order Boltzmann machine (BM), and extend the well-known results on the convergence of the learning algorithm of the two-order BM. From the Bahadur-Lazarsfeld expansion we characterize the probability distribution learned by the high order BM. Likewise a criterion is given to establish the topology of the… (More)

- Manuel Graña, Alicia D'Anjou, +4 authors Ana Isabel González
- Applied Intelligence
- 1997

This work reports the results obtained with the application of High Order Boltzmann Machines without hidden units to construct classifiers for some problems that represent different learning paradigms. The Boltzmann Machine weight updating algorithm remains the same even when some of the units can take values in a discrete set or in a continuous interval.… (More)

- Cecilia Sarasola, Francisco Javier Torrealdea, Alicia D'Anjou, Abdelmalik Moujahid, Manuel Graña
- I. J. Bifurcation and Chaos
- 2003

- D. Sal, Manuel Graña, Alicia D'Anjou
- IGARSS
- 2006