Wavelet entropy in event-related potentials: a new method shows ordering of EEG oscillations.

abstract：:In neuronal networks, the changes of synaptic strength (or weight) performed by spike-timing-dependent plasticity (STDP) are hypothesized to give rise to functional network structure. This article investigates how this phenomenon occurs for the excitatory recurrent connections of a network with fixed input weights tha...

journal_title：Biological cybernetics

authors： Gilson M,Burkitt AN,Grayden DB,Thomas DA,van Hemmen JL

更新日期：2009-12-01 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：:The aim of this study was to obtain information on the axonal diameters of cortico-cortical fibres in the human brain, connecting distant regions of the same hemisphere via the white matter. Samples for electron microscopy were taken from the region of the superior longitudinal fascicle and from the transitional white...

journal_title：Biological cybernetics

authors： Liewald D,Miller R,Logothetis N,Wagner HJ,Schüz A

更新日期：2014-10-01 00:00:00

abstract：:The assessment of the variability of neuronal spike timing is fundamental to gain understanding of latency coding. Based on recent mathematical results, we investigate theoretically the impact of channel noise on latency variability. For large numbers of ion channels, we derive the asymptotic distribution of latency, ...

journal_title：Biological cybernetics

authors： Wainrib G,Thieullen M,Pakdaman K

更新日期：2010-07-01 00:00:00

abstract：:Models built using mean data can represent only a very small percentage, or none, of the population being modeled, and produce different activity than any member of it. Overcoming this "averaging" pitfall requires measuring, in single individuals in single experiments, all of the system's defining characteristics. We ...

journal_title：Biological cybernetics

authors： Blümel M,Guschlbauer C,Daun-Gruhn S,Hooper SL,Büschges A

更新日期：2012-11-01 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：:In this study, human arm movement was reconstructed from electromyography (EMG) signals using a forward dynamics model acquired by an artificial neural network within a modular architecture. Dynamic joint torques at the elbow and shoulder were estimated for movements in the horizontal plane from the surface EMG signal...

journal_title：Biological cybernetics

authors： Koike Y,Kawato M

更新日期：1995-09-01 00:00:00

abstract：:A model is presented which accounts for many characteristic response properties used to classify anuran ganglion cell types while being consistent with data concerning interneurons. In the model color is ignored and input stimuli are assumed to be only black and white at high contrast. We show that accurate ganglion c...

journal_title：Biological cybernetics

authors： Teeters JL,Arbib MA

更新日期：1991-01-01 00:00:00

abstract：:Single-unit recordings suggest that the midbrain superior colliculus (SC) acts as an optimal controller for saccadic gaze shifts. The SC is proposed to be the site within the visuomotor system where the nonlinear spatial-to-temporal transformation is carried out: the population encodes the intended saccade vector by i...

journal_title：Biological cybernetics

authors： Kasap B,van Opstal AJ

更新日期：2017-08-01 00:00:00

abstract：:Sixty subjects were tested to assign orientation to ten dot patterns differing in their overall form and the number of dots in the pattern. The patterns were presented in four different positions in the visual field and their orientation was estimated in two ways. It was demonstrated that the assignment of orientation...

journal_title：Biological cybernetics

authors： Yakimoff N

更新日期：1981-01-01 00:00:00

abstract：:It is shown that the models for the transduction process in photoreceptors which treat latency and amplification as integrated phenomena ("integrated models") yield time scales for single photon signals ("quantum bumps") which distinctly conflict with the experimentally observed ones for the ventral nerve photorecepto...

journal_title：Biological cybernetics

authors： Schnakenberg J

更新日期：1989-01-01 00:00:00

abstract：:The experimental identification of a non-linear biologic transducer is often approached via consideration of its response to a stochastic test ensemble, such as Gaussian white noise (Marmarelis and Marmarelis 1978). In this approach, the input-output relationship a deterministic transducer is described by an orthogona...

journal_title：Biological cybernetics

authors： Victor JD

更新日期：1987-01-01 00:00:00

abstract：:Walking behavior is modulated by controlling joint torques in most existing passivity-based bipeds. Controlled Passive Walking with adaptable stiffness exhibits controllable natural motions and energy efficient gaits. In this paper, we propose torque-stiffness-controlled dynamic bipedal walking, which extends the conc...

journal_title：Biological cybernetics

authors： Huang Y,Vanderborght B,Van Ham R,Wang Q

更新日期：2014-12-01 00:00:00

abstract：:Neurons in sensory cortices are often assumed to be "feature detectors", computing simple and then successively more complex features out of the incoming sensory stream. These features are somehow integrated into percepts. Despite many years of research, a convincing candidate for such a feature in primary auditory co...

journal_title：Biological cybernetics

authors： Nelken I,Fishbach A,Las L,Ulanovsky N,Farkas D

更新日期：2003-11-01 00:00:00

abstract：:Vision typically has better spatial accuracy and precision than audition and as a result often captures auditory spatial perception when visual and auditory cues are presented together. One determinant of visual capture is the amount of spatial disparity between auditory and visual cues: when disparity is small, visua...

journal_title：Biological cybernetics

authors： Bosen AK,Fleming JT,Brown SE,Allen PD,O'Neill WE,Paige GD

更新日期：2016-12-01 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：: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：:Flies have the capability to visually track small moving targets, even across cluttered backgrounds. Previous computational models, based on figure detection (FD) cells identified in the fly, have suggested how this may be accomplished at a neuronal level based on information about relative motion between the target a...

journal_title：Biological cybernetics

authors： Higgins CM,Pant V

更新日期：2004-12-01 00:00:00

abstract：:Explosive movements such as throwing, kicking, and jumping are characterized by high velocity and short movement time. Due to the fact that latencies of neural feedback loops are long in comparison to movement times, correction of deviations cannot be achieved on the basis of neural feedback. In other words, the contr...

journal_title：Biological cybernetics

authors： van Soest AJ,Bobbert MF

更新日期：1993-01-01 00:00:00

abstract：:Rotations of the eye are generated by the torques that the eye muscles apply to the eye. The relationship between eye orientation and the direction of the torques generated by the extraocular muscles is therefore central to any understanding of the control of three-dimensional eye movements of any type. We review the ...

journal_title：Biological cybernetics

authors： Koene AR,Erkelens CJ

更新日期：2004-06-01 00:00:00

abstract：:It is generally held that the right and left middle ears of mammals are acoustically isolated from each other, such that mammals must rely on neural computation to derive sound localisation cues. There are, however, some unusual species in which the middle ear cavities intercommunicate, in which case each ear might be...

journal_title：Biological cybernetics

authors： Mason MJ

更新日期：2016-10-01 00:00:00

abstract：:The aim of this paper is to summarize and to compare some known mathematical models of orientation perception in random dot patterns and to propose new solutions of this question. The model adequacy is judged from the previously obtained experimental results. Apart from the models based on some simple function of the ...

journal_title：Biological cybernetics

authors： Mates J,Lánský P,Yakimoff N

更新日期：1990-01-01 00:00:00

abstract：:The visual system is constantly confronted with the problem of integrating local signals into more global arrangements. This arises from the nature of early cell responses, whether they signal localized measures of luminance, motion, retinal position differences, or discontinuities. Consequently, from sparse, local me...

journal_title：Biological cybernetics

authors： Neumann H,Pessoa L,Hansen T

更新日期：2001-11-01 00:00:00

abstract：:The method of non-linear forecasting of time series was applied to different simulated signals and EEG in order to check its ability of distinguishing chaotic from noisy time series. The goodness of prediction was estimated, in terms of the correlation coefficient between forecasted and real time series, for non-linea...

journal_title：Biological cybernetics

authors： Blinowska KJ,Malinowski M

更新日期：1991-01-01 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：:A computational model of a learning system (LS) is described that acquires knowledge and skill necessary for optimal control of a multisegmental limb dynamics (controlled object or CO), starting from "knowing" only the dimensionality of the object's state space. It is based on an optimal control problem setup differen...

journal_title：Biological cybernetics

authors： Shimansky YP,Kang T,He J

更新日期：2004-02-01 00:00:00

abstract：:A new association scheme which can still recall appropriate data when some key elements are missing (blank) is presented. The traditional associative memory models are designed to deal with complete (memorized) keys, but in the real world, key elements are often missing due to error, equipment failure, observation dif...

journal_title：Biological cybernetics

authors： Murakami K,Aibara T

更新日期：1982-01-01 00:00:00

abstract：:A linear analogue network model is proposed to describe the neuronal circuit of the outer retina consisting of cones, horizontal cells, and bipolar cells. The model reflects previous physiological findings on the spatial response properties of these neurons to dim illumination and is expressed by physiological mechani...

journal_title：Biological cybernetics

authors： Yagi T,Ohshima S,Funahashi Y

更新日期：1997-09-01 00:00:00

abstract：:A model calculation is presented simulating the coordinated interaction between the walking legs of a multi-legged animal. The neural network consists of separate modules with oscillatory capabilities. It has the ability to adjust the necessary parameters for producing a coordinated interaction between the modules in ...

journal_title：Biological cybernetics

authors： Müller-Wilm U

更新日期：1993-01-01 00:00:00

abstract：:The light-growth response of the Phycomyces sporangiophore is a transient change of elongation rate in response to changes in ambient blue-light intensity. The white-noise method of nonlinear system identification (Wiener-Lee-Schetzen theory) has been applied to this response, and the results have been interpreted by ...

journal_title：Biological cybernetics

authors： Poe RC,Lipson ED

更新日期：1986-01-01 00:00:00