The distributed representation of vestibulo-oculomotor signals by brain-stem neurons.

abstract：:This paper deals with the problem of separating the spectra of signal and noise in ensembles where the signal can be considered as an invariant component and the noise as a stationary additive background. Several methods are discussed and compared on the basis of a statistical analysis of the first two moments of the ...

journal_title：Biological cybernetics

authors： de Weerd JP,Uyen GJ,Johannesma PI,Martens WL

更新日期：1979-03-19 00:00:00

abstract：:We have previously tried to explain perceptual inference and learning under a free-energy principle that pursues Helmholtz's agenda to understand the brain in terms of energy minimization. It is fairly easy to show that making inferences about the causes of sensory data can be cast as the minimization of a free-energy...

journal_title：Biological cybernetics

authors： Friston KJ,Daunizeau J,Kilner J,Kiebel SJ

更新日期：2010-03-01 00:00:00

abstract：:When human subjects are presented with a pair of visual targets that alternate periodically, they track the targets with rapid eye movements known as saccades. In previous work we demonstrated that at low pacing rates (<0.5 Hz), saccades have a latency of about 180 ms, and the latencies are uncorrelated from trial to ...

journal_title：Biological cybernetics

authors： Shelhamer M

更新日期：2005-07-01 00:00:00

abstract：:There are two issues in balancing a stick pivoting on a finger tip (or mechanically on a moving cart): maintaining the stick angle near to vertical and maintaining the horizontal position within the bounds of reach or cart track. The (linearised) dynamics of the angle are second order (although driven by pivot acceler...

journal_title：Biological cybernetics

authors： Gawthrop P,Lee KY,Halaki M,O'Dwyer N

更新日期：2013-12-01 00:00:00

abstract：:Taste buds endure extreme changes in temperature, pH, osmolarity, so on. Even though taste bud cells are replaced in a short span, they contribute to consistent taste reception. Each taste bud consists of about 50 cells whose networks are assumed to process taste information, at least preliminarily. In this article, w...

journal_title：Biological cybernetics

authors： Tateno K,Igarashi J,Ohtubo Y,Nakada K,Miki T,Yoshii K

更新日期：2011-07-01 00:00:00

abstract：:This article describes current views on motor and sensory control of extraocular muscles (EOMs) based on anatomical data. The special morphology of EOMs, including their motor innervation, is described in comparison to classical skeletal limb and trunk muscles. The presence of proprioceptive organs is reviewed with em...

journal_title：Biological cybernetics

authors： Lienbacher K,Horn AK

更新日期：2012-12-01 00:00:00

abstract：:Since the seminal works of Bernstein (The coordination and regulation of movements. Pergamon Press, Oxford, 1967) several authors have supported the idea that, to produce a goal-oriented movement in general, and a movement of the organs responsible for the production of speech sounds in particular, individuals activat...

journal_title：Biological cybernetics

authors： Lancia L,Rosenbaum B

更新日期：2018-06-01 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：:This article analyzes the question of whether neuroscience allows for mathematical descriptions and whether an interaction between experimental and theoretical neuroscience can be expected to benefit both of them. It is argued that a mathematization of natural phenomena never happens by itself. First, appropriate key ...

journal_title：Biological cybernetics

authors： van Hemmen JL

更新日期：2014-10-01 00:00:00

abstract：:Many tasks require the arm to move from its initial position to a specified target position, but leave us free to choose the trajectory between them. This paper presents and tests the hypothesis that trajectories are chosen to minimize metabolic energy costs. Costs are calculated for the range of possible trajectories...

journal_title：Biological cybernetics

authors： Alexander RM

更新日期：1997-02-01 00:00:00

abstract：:Neurons transmit information as action potentials or spikes. Due to the inherent randomness of the inter-spike intervals (ISIs), probabilistic models are often used for their description. Cumulative damage (CD) distributions are a family of probabilistic models that has been widely considered for describing time-relat...

journal_title：Biological cybernetics

authors： Leiva V,Tejo M,Guiraud P,Schmachtenberg O,Orio P,Marmolejo-Ramos F

更新日期：2015-10-01 00:00:00

abstract：:For over 75 years it has been clear that the number of spikes in a neural response is an important part of the neuronal code. Starting as early as the 1950's with MacKay and McCullough, there has been speculation over whether each spike and its exact time of occurrence carry information. Although it is obvious that th...

journal_title：Biological cybernetics

authors： Richmond BJ

更新日期：2009-06-01 00:00:00

abstract：:A neural model is proposed for the spatiotemporal properties of simple cells in the visual cortex. In the model, several cortical cells are arranged on a ring, with mutual excitatory or inhibitory connections. The cells also receive excitatory inputs either from lagged and nonlagged cells of the lateral geniculate nuc...

journal_title：Biological cybernetics

authors： Hamada T,Yamashima M,Kato K

更新日期：1997-10-01 00:00:00

abstract：:The present paper considers the relation between the shape of a triangle and probability of its recognition. An effect of triangle size on perception of its shape is examined in the first experiment. In the second the loci of eye fixations during triangle recognition task are recorded and analysed. A simulation model ...

journal_title：Biological cybernetics

authors： Pizlo Z

更新日期：1988-01-01 00:00:00

abstract：:Most robot navigation systems perform place recognition using a single-sensor modality and one, or at most two heterogeneous map scales. In contrast, mammals perform navigation by combining sensing from a wide variety of modalities including vision, auditory, olfactory and tactile senses with a multi-scale, homogeneou...

journal_title：Biological cybernetics

authors： Jacobson A,Chen Z,Milford M

更新日期：2018-06-01 00:00:00

abstract：:We consider a simple electronic circuit model of a single neuron. The neuron is assumed to be driven by an external signal comprising constant (dc) and random components. In addition, the nonlinearity parameter in the circuit is assumed to fluctuate, thereby giving rise to critical behavior including the onset of hyst...

journal_title：Biological cybernetics

authors： Bulsara AR,Boss RD,Jacobs EW

更新日期：1989-01-01 00:00:00

abstract：:A nonstationary signal analysis technique is introduced, which regards an oscillatory physiological signal as a sum of its fragments, presented in the form of a fragmentary decomposition (FD). The virtue of FD is that it is free of the necessity to choose a priori the basis functions intended for signal analysis or sy...

journal_title：Biological cybernetics

authors： Melkonian D,Blumenthal T,Gordon E

更新日期：1999-11-01 00:00:00

abstract：:This paper presents a mathematical model for the learning of accurate human arm movements. Its main features are that the movement is the superposition of smooth submovements, the intrinsic deviation of arm movements is considered, visual and kinesthetic feed-back are integrated in the motion control, and the movement...

journal_title：Biological cybernetics

authors： Burdet E,Milner TE

更新日期：1998-04-01 00:00:00

abstract：:Learning to make reaching movements in force fields was used as a paradigm to explore the system architecture of the biological adaptive controller. We compared the performance of a number of candidate control systems that acted on a model of the neuromuscular system of the human arm and asked how well the dynamics of...

journal_title：Biological cybernetics

authors： Bhushan N,Shadmehr R

更新日期：1999-07-01 00:00:00

abstract：:How do biological agents plan and organise a smooth accurate path to shift from one smooth mode of behaviour to another as part of graceful movement that is both plastic and controlled? This paper addresses the question in conducting a novel shape analysis of approach and adjustment phases in rapid voluntary target ai...

journal_title：Biological cybernetics

authors： Weir MK,Wale AP

更新日期：2011-08-01 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：:Cortical circuits have been proposed to encode information by forming stable spatially structured attractors. Experimentally in the primary somatosensory cortex of the monkey, temporally invariant stimuli lead to spatially structured activity patterns. The purpose of this work is to study a recurrent cortical neural n...

journal_title：Biological cybernetics

authors： Gutkin BS,Smith CE

更新日期：2000-06-01 00:00:00

abstract：:According to modern views of the cerebellum in motor control, each cerebellar functional unit, or microzone, learns how to execute predictive and coordinative control, based on long-term depression of the granule cell-Purkinje cell synapses. In the present paper, in light of recent experimental and theoretical studies...

journal_title：Biological cybernetics

authors： Schweighofer N

更新日期：1998-08-01 00:00:00

abstract：:A neural network model of the mechanism of selective attention in visual pattern recognition is proposed and simulated on a digital computer. When a complex figure consisting of two patterns or more is presented to the model, it is segmented into individual patterns, and each pattern is recognized separately. Even if ...

journal_title：Biological cybernetics

authors： Fukushima K

更新日期：1986-01-01 00:00:00

abstract：:Nonlinear oscillators are usually utilized by bionic scientists for establishing central pattern generator models for imitating rhythmic motions by bionic scientists. In the natural word, many rhythmic motions possess asymmetric time ratios, which means that the forward and the backward motions of an oscillating proce...

journal_title：Biological cybernetics

authors： Fu Q,Wang DH,Xu L,Yuan G

更新日期：2018-06-01 00:00:00

abstract：:Movement of multiple segment limbs requires generation of appropriate joint torques which include terms arising from dynamic interactions among the moving segments as well as from such external forces as gravity. The interaction torques, arising from inertial, centripetal, and Coriolis forces, are not present for sing...

journal_title：Biological cybernetics

authors： Hollerbach MJ,Flash T

更新日期：1982-01-01 00:00:00

abstract：:In neural networks the activation process controls the output as a nonlinear function of the input; and, this output remains bounded between limits as decided by a logistic function known as the sigmoid (S-shaped). Presently, by applying the considerations of Maxwell-Boltzmann statistics, the Langevin function is show...

journal_title：Biological cybernetics

authors： Neelakanta PS,Sudhakar R,DeGroff D

更新日期：1991-01-01 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 superior colliculus (SC) integrates relevant sensory information (visual, auditory, somatosensory) from several cortical and subcortical structures, to program orientation responses to external events. However, this capacity is not present at birth, and it is acquired only through interactions with cross-modal eve...

journal_title：Biological cybernetics

authors： Cuppini C,Magosso E,Rowland B,Stein B,Ursino M

更新日期：2012-12-01 00:00:00

abstract：:Involuntary eye movements were recorded during threshold detection tasks under various experimental conditions. The data were analyzed for interdependencies between stimulus parameters, detection performance, and oculomotor behaviour. The data demonstrate that under certain conditions, saccadic parameters are adaptive...

journal_title：Biological cybernetics

authors： Deubel H,Elsner T

更新日期：1986-01-01 00:00:00