The fractal dimension of a test signal: implications for system identification procedures.

abstract：:Connections among ventrolateral medullary respiratory neurons inferred from spike train analysis were incorporated into a model and simulated with the program SYSTM11 (MacGregor 1987). Inspiratory (I) and expiratory (E) neurons with augmenting (AUG) and decrementing (DEC) discharge patterns and rostral I-E/I neurons e...

journal_title：Biological cybernetics

authors： Balis UJ,Morris KF,Koleski J,Lindsey BG

更新日期：1994-01-01 00:00:00

abstract：:The size of a pair of cortical ocular dominance columns determines a basic anatomical module of V-1 which Hubel and Wiesel have termed the hypercolumn. Does this correspond to a basic functional, or psychophysically measurable, module as well? This is the basic question addressed in the present paper. Since the ocular...

journal_title：Biological cybernetics

authors： Yeshurun Y,Schwartz EL

更新日期：1999-02-01 00:00:00

abstract：:Neuronal excitability under stimuli with a complex time course is investigated on the basis of the numerical solution of the Hodgkin-Huxley equations. Each stimulus is composed of 100-1000 unitary excitatory postsynaptic potentials (uEPSP) that start randomly within a definite time window. Probability of initiating a ...

journal_title：Biological cybernetics

authors： Vidybida AK

更新日期：1996-06-01 00:00:00

abstract：:This article introduces several fundamental concepts in information theory from the perspective of their origins in engineering. Understanding such concepts is important in neuroscience for two reasons. Simply applying formulae from information theory without understanding the assumptions behind their definitions can ...

journal_title：Biological cybernetics

authors： McDonnell MD,Ikeda S,Manton JH

更新日期：2011-07-01 00:00:00

abstract：:We analyze the effect of weak-noise-induced transitions on the dynamics of the FitzHugh-Nagumo neuron model in a bistable state consisting of a stable fixed point and a stable unforced limit cycle. Bifurcation and slow-fast analysis give conditions on the parameter space for the establishment of this bi-stability. In ...

journal_title：Biological cybernetics

authors： Yamakou ME,Jost J

更新日期：2018-10-01 00:00:00

abstract：:Neurons receive a continual stream of excitatory and inhibitory synaptic inputs. A conductance-based neuron model is used to investigate how the balanced component of this input modulates the amplitude of neuronal responses. The output spiking rate is well described by a formula involving three parameters: the mean mu...

journal_title：Biological cybernetics

authors： Burkitt AN,Meffin H,Grayden DB

更新日期：2003-08-01 00:00:00

abstract：:The stoichiometric and kinetic details of transmitter-receptor interaction (the number of conformations and the rate constants of conformation changes( in synaptic transmission have been investigated analyzing postsynaptic membrane noises by the aid of the fluctuation-dissipation theorem of stochastic chemical kinetic...

journal_title：Biological cybernetics

authors： Erdi P,Ropolyi L

更新日期：1979-02-02 00:00:00

abstract：:It is shown how field potentials due to neuronal membrane processes can be computed by means of a digital computer system. The essence of the method consists in evaluating a discrete expression for the field potential as a function of membrane potentials. This expression is considered as a three-dimensional convolutio...

journal_title：Biological cybernetics

authors： van Rotterdam A

更新日期：1980-01-01 00:00:00

abstract：:An important step in visual processing is the segregation of objects in a visual scene from one another and from the embedding background. According to current theories of visual neuroscience, the different features of a particular object are represented by cells which are spatially distributed across multiple visual ...

journal_title：Biological cybernetics

authors： Schillen TB,König P

更新日期：1994-01-01 00:00:00

abstract：:In many applications of signal processing, especially in communications and biomedicine, preprocessing is necessary to remove noise from data recorded by multiple sensors. Typically, each sensor or electrode measures the noisy mixture of original source signals. In this paper a noise reduction technique using independ...

journal_title：Biological cybernetics

authors： Vorobyov S,Cichocki A

更新日期：2002-04-01 00:00:00

abstract：:In the current research, the muscle equivalent linear damping coefficient which is introduced as the force-velocity relation in a muscle model and the corresponding time constant are investigated. In order to reach this goal, a 1D skeletal muscle model was used. Two characterizations of this model using a linear force...

journal_title：Biological cybernetics

authors： Ovesy M,Nazari MA,Mahdavian M

更新日期：2016-02-01 00:00:00

abstract：:Synchronization of the oscillatory discharge of cortical neurons could be a part of the mechanism that is involved in cortical information processing. On the assumption that the basic functional unit is the column composed of local excitatory and inhibitory cells and generating oscillatory neural activity, a network m...

journal_title：Biological cybernetics

authors： Fukai T

更新日期：1994-01-01 00:00:00

abstract：:This article presents the use of continuous dynamic models in the form of differential equations to describe and predict temporal changes in biological processes and discusses several of its important advantages over discontinuous bistable ones, exemplified on the stick insect walking system. In this system, coordinat...

journal_title：Biological cybernetics

authors： Daun-Gruhn S,Büschges A

更新日期：2011-07-01 00:00:00

abstract：:Experimental studies have shown that responses of ventral intraparietal area (VIP) neurons specialize in head movements and the environment near the head. VIP neurons respond to visual, auditory, and tactile stimuli, smooth pursuit eye movements, and passive and active movements of the head. This study demonstrates ma...

journal_title：Biological cybernetics

authors： McCollum G,Klam F,Graf W

更新日期：2012-07-01 00:00:00

abstract：:A receptive field constitutes a region in the visual field where a visual cell or a visual operator responds to visual stimuli. This paper presents a theory for what types of receptive field profiles can be regarded as natural for an idealized vision system, given a set of structural requirements on the first stages o...

journal_title：Biological cybernetics

authors： Lindeberg T

更新日期：2013-12-01 00:00:00

abstract：:Type II units in the dorsal cochlear nucleus (DCN) are characterized by vigorous but nonmonotonic responses to best frequency tones as a function of sound pressure level, and relatively weak responses to noise. A model of DCN neural circuitry was used to explore two hypothetical mechanisms by which neurons may be endo...

journal_title：Biological cybernetics

authors： Hancock KE,Davis KA,Voigt HF

更新日期：1997-06-01 00:00:00

abstract：:In vision of everyday scenes, features requiring detection are frequently observed in the presence of suprathreshold background structures. Detection of such features is a contrast discrimination task and is often necessary for the subsequent process of recognition. In order to provide a description of this task, cont...

journal_title：Biological cybernetics

authors： Burton GJ

更新日期：1981-01-01 00:00:00

abstract：:Simulation results of bistable perception due to ambiguous visual stimuli are presented which are obtained with a behavioral nonlinear dynamics model using perception-attention-memory coupling. This model provides an explanation of recent experimental results of Gao et al. (Cogn Process 7:105-112, 2006a) and it suppor...

journal_title：Biological cybernetics

authors： Fürstenau N

更新日期：2010-09-01 00:00:00

abstract：:Waves are common in cortical networks and may be important for carrying information about a stimulus from one local circuit to another. In a recent study of visually evoked waves in rat cortex, compression and reflection of waves are observed as the activation passes from visual areas V1 to V2. The authors of this stu...

journal_title：Biological cybernetics

authors： Goulet J,Ermentrout GB

更新日期：2011-10-01 00:00:00

abstract：:A mathematical muscle model is presented that relates neural control signals linearly to muscle force without violating important known physiological constraints, such as the size-principle (Henneman and Mendell 1981) and non-linear twitch summation (Burke et al. 1976). This linearity implies that the neural control s...

journal_title：Biological cybernetics

authors： Tax AA,Denier van der Gon JJ

更新日期：1991-01-01 00:00:00

abstract：:Motion repulsion is the perceived enlargement of the angle between the directions of motion of two transparently moving patterns. An explanation of this illusion has long been sought for in the neural circuitry of the brain. We show that motion repulsion already arises from the statistical properties of the motion tra...

journal_title：Biological cybernetics

authors： Mahani AS,Carlsson AE,Wessel R

更新日期：2005-04-01 00:00:00

abstract：:Understanding closed loop behavioral systems is a non-trivial problem, especially when they change during learning. Descriptions of closed loop systems in terms of information theory date back to the 1950s, however, there have been only a few attempts which take into account learning, mostly measuring information of i...

journal_title：Biological cybernetics

authors： Kulvicius T,Kolodziejski C,Tamosiunaite M,Porr B,Wörgötter F

更新日期：2010-10-01 00:00:00

abstract：:This study is concerned with synaptic reorganization in local neuronal networks. Within networks of 30 neurons, an initial disequilibrium in connectivity has to be compensated by reorganization of synapses. Such plasticity is not a genetically determined process, but depends on results of neuronal interaction. Neurobi...

journal_title：Biological cybernetics

authors： Dammasch IE,Wagner GP,Wolff JR

更新日期：1988-01-01 00:00:00

abstract：:An initial test for a theory of lateral hypothalamic regulation of electrocortical activity is undertaken. The theory supposes lateral hypothalamic input directly or indirectly damps telencephalic resonances involving linear wave phenomena, enabling this pathway to act as parametric control of information processing i...

journal_title：Biological cybernetics

authors： Wright JJ,Kydd RR

更新日期：1984-01-01 00:00:00

abstract：:In recent years, a great deal of research within the field of sound localization has been aimed at finding the acoustic cues that human listeners use to localize sounds and understanding the mechanisms by which they process these cues. In this paper, we propose a complementary approach by constructing an ideal-observe...

journal_title：Biological cybernetics

authors： Reijniers J,Vanderelst D,Jin C,Carlile S,Peremans H

更新日期：2014-04-01 00:00:00

abstract：:In bursting excitable cells such as pancreatic beta-cells and molluscan Aplysia neuron cells, intracellular Ca2+ ion plays a central role in various cellular functions. To understand the role of [Ca2+]i (the intracellular Ca2+ concentration) in electrical bursting, we formulate a mathematical model which contains a fe...

journal_title：Biological cybernetics

authors： Chay TR

更新日期：1990-01-01 00:00:00

abstract：:Insects can remember and return to a place of interest using the surrounding visual cues. In previous experiments, we showed that crickets could home to an invisible cool spot in a hot environment. They did so most effectively with a natural scene surround, though they were also able to home with distinct landmarks or...

journal_title：Biological cybernetics

authors： Mangan M,Webb B

更新日期：2009-10-01 00:00:00

abstract：:Arthropods as well as mammals are able to return straight home after a random search excursion under conditions that are designed to exclude all external cues. After a brief clarification of the terminology, two principal systems of information processing that can achieve this performance are introduced and analysed: ...

journal_title：Biological cybernetics

authors： Mittelstaedt H

更新日期：2000-09-01 00:00:00

abstract：:An "adaptation model" having two stages is introduced and its mathematical properties are examined. The two stages are the "adaptive process" (parameter Kb), which has bleaching-type kinetics, and the "response function" (parameters Kr and n), which incorporates response saturation. In order to study the increment thr...

journal_title：Biological cybernetics

authors： Dawis SM

更新日期：1978-09-28 00:00:00

abstract：:A randomization method is developed for the calculation of covariation between multiple variables that are linked nonlinearly to a dependent variable. Covariation is a phenomenon often invoked in the study of movement coordination to capture the fact that in coordinated movement the outcome shows greater than expected...

journal_title：Biological cybernetics

authors： Müller H,Sternad D

更新日期：2003-07-01 00:00:00