Visual-vestibular interaction in the control of eye movement: mathematical modelling and computer simulation.

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：:Based on a complexity analysis of mutual information transmission of EEG developed by us [Xu J, Liu Z, Liu R, Yang Q (1997) Physica D 106: 363-374], dynamic processes of the complexity of mutual information transmission in human brains were studied. To diminish possible problems due to coarse graining preprocessing, s...

journal_title：Biological cybernetics

authors： Chen F,Xu J,Gu F,Yu X,Meng X,Qiu Z

更新日期：2000-10-01 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：: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：: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：:Response patterns recorded with 30 microelectrodes from area 17 of anaesthetized monkeys are analysed. A proportion of the patterns are used to define prototype response patterns. These in turn are used to recognize the stimulus from further non-averaged response patterns. In comparison, recognition by a feedforward '...

journal_title：Biological cybernetics

authors： Becker JD,Krüger J

更新日期：1996-04-01 00:00:00

abstract：:Much evidence suggests that the mammalian thalamus is not merely a set of nuclei relaying signals to the cerebral cortex, but is engaged in two-way interplay with it. Three important features constrain ideas about the nature of this interplay: (i) thalamic projection neurones lack local axon collaterals; (ii) most cor...

journal_title：Biological cybernetics

authors： Miller R

更新日期：1996-09-01 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：:The membrane excitability changes as well as the underlying mechanisms of these changes in a normal and in a systematically paranodally demyelinated nerve fibre have been investigated by paired stimulation during the first 30 ms of the recovery cycle. The ionic current kinetics determining the observed changes in the ...

journal_title：Biological cybernetics

authors： Stephanova DI

更新日期：1989-01-01 00:00:00

abstract：:In the present work a linear model for a pair of antagonistic muscles is analysed. Each constituent muscle in this model is identical to ones considered previously (Stein and Oğuztöreli, 1976). Analytical properties of the antagonistic muscles and dynamics of the system are described and some numerical results are dis...

journal_title：Biological cybernetics

authors： Oğuztöreli MN,Stein RB

更新日期：1982-01-01 00:00:00

abstract：:David Marr and others have hypothesized that the visual system processes complex scene information in stages, the first of which involves the detection of light intensity edges or "zero-crossings" (Marr, 1982). Ideal zero-crossing detector mechanisms have been described and modeled in terms of their possible physiolog...

journal_title：Biological cybernetics

authors： Hochstein S,Spitzer H

更新日期：1984-01-01 00:00:00

abstract：:In motion-processing areas of the visual cortex in cats and monkeys, an anisotropic distribution of direction selectivities displays a preference for movements away from the fovea. This 'centrifugal bias' has been hypothetically linked to the processing of optic flow fields generated during forward locomotion. In this...

journal_title：Biological cybernetics

authors： Lappe M,Rauschecker JP

更新日期：1995-01-01 00:00:00

abstract：:With regular trains of stimuli at a high frequency, the contribution of each stimulus to the force generated over time declines from the second to about the tenth stimulus, but then begins to increase again. This late increase is referred to as tetanic potentiation in analogy with the post-tetanic potentiation of the ...

journal_title：Biological cybernetics

authors： Parmiggiani F,Stein RB,Rolf R

更新日期：1982-01-01 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：:The myoskeletal inverse dynamics problem and the myocybernetic control inverse problem were investigated with respect to their ill-posedness. The first problem consists of finding from observed experimental motion and reaction force data the resultant muscle moments that generated the observed motion, while the second...

journal_title：Biological cybernetics

authors： Hatze H

更新日期：2000-02-01 00:00:00

abstract：:In the context of the models of structure from motion visual processing, we propose that the optic-flow field is a source of information for the perception of the curvature of a smooth surface in motion. In particular, it is shown how the spin variation (SV), a second spatial derivative of the retinal velocity field, ...

journal_title：Biological cybernetics

authors： Droulez J,Cornilleau-Pérès V

更新日期：1990-01-01 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：:We present a controls systems model of horizontal-plane head movements during perturbations of the trunk, which for the first time interfaces a model of the human head with neural feedback controllers representing the vestibulocollic (VCR) and the cervicocollic (CCR) reflexes. This model is homeomorphic such that mode...

journal_title：Biological cybernetics

authors： Peng GC,Hain TC,Peterson BW

更新日期：1996-10-01 00:00:00

abstract：:A multisegment, multijoint model of a falling animal is presented to examine the effectiveness of a two-stage control scheme in a zero-momentum self-righting maneuver. The model contains a much larger number of degrees of freedom than is required to execute a self-righting maneuver and is thus capable of providing mul...

journal_title：Biological cybernetics

authors： Arabyan A,Tsai D

更新日期：1998-11-01 00:00:00

abstract：:This paper introduces a theoretical frame-work for characterizing and classifying simple parallel algorithms and systems with many inputs, for example an array of photoreceptors. The polynomial representation (Taylor series development) of a large class of operators is introduced and its range of validity discussed. T...

journal_title：Biological cybernetics

authors： Poggio T,Reichardt W

更新日期：1980-01-01 00:00:00

abstract：:This report demonstrates the effectiveness of two processes in constructing simple feedforward networks which perform good transformations on their inputs. Good transformations are characterized by the minimization of two information measures: the information loss incurred with the transformation and the statistical d...

journal_title：Biological cybernetics

authors： Adelsberger-Mangan DM,Levy WB

更新日期：1993-01-01 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

abstract：:Voltage-clamp of excitable membrane allows the measurement of membrane currents associated with electrical potential changes across the membrane. However, it has been impossible in practice to apply the conventional analog feedback voltage-clamp circuits to single electrode voltage clamping in central neurons. The rea...

journal_title：Biological cybernetics

authors： Kawato M,Etoh M,Oda Y,Tsukahara N

更新日期：1985-01-01 00:00:00

abstract：:Color vision in humans is independent over a wide range of the spectral composition of the illuminating light (Young 1807; Hering 1879). The retinex theory accounts for this color constancy by assuming that for each of the three waveband channels determined by the retinal cones a global lightness record of the scene i...

journal_title：Biological cybernetics

authors： Wehrhahn C

更新日期：1987-01-01 00:00:00

abstract：:Identification and analysis of directed influences in multivariate systems is an important problem in many scientific areas. Recent studies in neuroscience have provided measures to determine the network structure of the process and to quantify the total effect in terms of energy transfer. These measures are based on ...

journal_title：Biological cybernetics

authors： Gigi S,Tangirala AK

更新日期：2010-08-01 00:00:00

abstract：:Rapidly adapting (RA) currents expressed in dorsal root ganglia somatosensory neurons reduce their amplitude in response to prolonged and/or repeated mechanical stimulation. Both inactivation of mechanotransducer channels and adaptation of the force acting on the channels have been suggested to independently decrease ...

journal_title：Biological cybernetics

authors： Prešern J,Škorjanc A,Rodič T,Benda J

更新日期：2016-12-01 00:00:00

abstract：:Histograms of fast-phase intervals in human optokinetic and vestibular nystagmus were generated, and fitted to statistical distributions used in previous studies. The distributions did not depend on stimulation type (optokinetic or vestibular). An inverse Gaussian or a gamma distribution fitted the data better than di...

journal_title：Biological cybernetics

authors： Trillenberg P,Zee DS,Shelhamer M

更新日期：2002-07-01 00:00:00

abstract：:ICE stands for internally coupled ears. More than half of the terrestrial vertebrates, such as frogs, lizards, and birds, as well as many insects, are equipped with ICE that utilize an air-filled cavity connecting the two eardrums. Its effect is pronounced and twofold. On the basis of a solid experimental and mathemat...

journal_title：Biological cybernetics

authors： van Hemmen JL,Christensen-Dalsgaard J,Carr CE,Narins PM

更新日期：2016-10-01 00:00:00

abstract：:Directional and orientational components usually coexist and are mixed in the cell's overall responses when moving optical stimuli are used to study the response characteristics of visual neurons. While these two properties were quantified with all the previous methods for data analysis, their effects could not be eff...

journal_title：Biological cybernetics

authors： Li B,Wang Y,Diao Y

更新日期：1994-01-01 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