Spectro-temporal representations and time-varying spectra of evoked potentials. A methodological investigation.

abstract：:It has been proved that a detection process may be accounted for by a simple two-state model consisting of a collection of linear analysers followed by a maximum-output decision rule provided that a set of all threshold stimuli is convex. A non-parametrical method to identify the analysers constituting such a model is...

journal_title：Biological cybernetics

authors： Logvinenko AD

更新日期：1995-11-01 00:00:00

abstract：:The information transmission properties of single, de-efferented primary muscle-spindle afferents from the hind limb of the cat were investigated. The gastrocnemius medialis muscle was stretched randomly while recording spike trains from several muscle-spindle afferents in the dorsal root. Two classes of input stimuli...

journal_title：Biological cybernetics

authors： Tock Y,Ljubisavljevic M,Thunberg J,Windhorst U,Inbar GF,Johansson H

更新日期：2002-10-01 00:00:00

abstract：:Trajectories in human aimed movements are inherently variable. Using the concept of positional variance profiles, such trajectories are shown to be decomposable into two phases: In a first phase, the variance of the limb position over many trajectories increases rapidly; in a second phase, it then decreases steadily. ...

journal_title：Biological cybernetics

authors： Gori J,Rioul O

更新日期：2020-12-01 00:00:00

abstract：:In studies of human balance, it is common to fit stimulus-response data by tuning the time-delay and gain parameters of a simple delayed feedback model. Many interpret this fitted model, a simple delayed feedback model, as evidence that predictive processes are not required to explain existing data on standing balance...

journal_title：Biological cybernetics

authors： Gawthrop P,Loram I,Lakie M

更新日期：2009-08-01 00:00:00

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：:We have developed two algorithms that construct a simultaneous functional order in a collection of neural elements using purely functional relations. The input of the first algorithm is a matrix describing the total of covariances of signals carried by the members of the neural collection. The second algorithm proceed...

journal_title：Biological cybernetics

authors： Toet A,Blom J,Koenderink JJ

更新日期：1987-01-01 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：:For the Ornstein-Uhlenbeck neuronal model a quantitative method is proposed for the estimation of the two parameters characterizing the unknown input process, namely the neuron's mean input per unit time mu and the infinitesimal standard deviation per unit time sigma. This method is based on the experimentally observe...

journal_title：Biological cybernetics

authors： Inoue J,Sato S,Ricciardi LM

更新日期：1995-08-01 00:00:00

abstract：:Within the field of motor control, there is no consensus on which kinematic and kinetic aspects of movements are planned or controlled. Perturbing goal-directed movements is a frequently used tool to answer this question. To be able to draw conclusions about motor control from kinematic responses to perturbations, a m...

journal_title：Biological cybernetics

authors： Pinter IJ,van Soest AJ,Bobbert MF,Smeets JB

更新日期：2012-10-01 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 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：:Compared to all other hearing animals, insects are the smallest ones, both in absolute terms and in relation to the wavelength of most biologically relevant sounds. The ears of insects can be located at almost any possible body part, such as wings, legs, mouthparts, thorax or abdomen. The interaural distances are gene...

journal_title：Biological cybernetics

authors： Römer H,Schmidt AK

更新日期：2016-10-01 00:00:00

abstract：:After a brief description of the main anatomical structures subserving the oculomotor responses during combined vestibular and optokinetic stimulations, a mathematical model is presented. With respect to a previous model by Schmid et al. (1980), a more accurate definition of the roles of the neural mechanisms involved...

journal_title：Biological cybernetics

authors： Buizza A,Schmid R

更新日期：1982-01-01 00:00:00

abstract：:Neuromuscular systems are stabilized and controlled by both feedforward and feedback signals. Feedforward pathways driven by central pattern generators (CPGs), in conjunction with preflexive mechanical reaction forces and nonlinear muscle properties, can produce stable stereotypical gaits. Feedback is nonetheless pres...

journal_title：Biological cybernetics

authors： Proctor J,Holmes P

更新日期：2010-06-01 00:00:00

abstract：:Under a 90 degrees rotation of motor space relative to visual space, human two-dimensional aiming movements frequently take the form of smooth arcs such as spirals and semi-circles. A time-independent differential equation explains this tendency in terms of a rotation-induced vector field made up, at each point in the...

journal_title：Biological cybernetics

authors： Cunningham HA,Vardi I

更新日期：1990-01-01 00:00:00

abstract：:Several formulations of correlation-based Hebbian learning are reviewed. On the presynaptic side, activity is described either by a firing rate or by presynaptic spike arrival. The state of the postsynaptic neuron can be described by its membrane potential, its firing rate, or the timing of backpropagating action pote...

journal_title：Biological cybernetics

authors： Gerstner W,Kistler WM

更新日期：2002-12-01 00:00:00

abstract：:Fitzhugh's BVP model has been used by many people. Fitzhugh has pointed out that as the stimulus is increased the model has "inverted" behaviour. It is here shown that this is due to a lack of a mechanism of inactivation, and the model is adjusted by supplying such a mechanism, to give a new model, called BPH, which, ...

journal_title：Biological cybernetics

authors： Game CJ

更新日期：1982-01-01 00:00:00

abstract：:In this work we show the application of a measure of entropy defined from the wavelet transform, namely the wavelet entropy (WS), to the study of event-related potentials (ERPs). WS was computed for ERPs recorded from nine healthy subjects with three different types of stimuli, among them target stimuli in a cognitive...

journal_title：Biological cybernetics

authors： Quiroga RQ,Rosso OA,Başar E,Schürmann M

更新日期：2001-04-01 00:00:00

abstract：:Based on the kinematics of goal-directed aiming movements in a reciprocal Fitts' task, a minimal limit cycle model is proposed that is capable of producing the behavior observed at levels of task difficulty ranging from 3 to 7. From graphical and statistical analyses of the phase planes, Hooke's planes and velocity pr...

journal_title：Biological cybernetics

authors： Mottet D,Bootsma RJ

更新日期：1999-04-01 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：: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：:The notion that biological systems come to embody optimal solutions seems consistent with the competitive drive of evolution. It has been used to interpret many examples of sensorimotor behavior. It is attractive from the viewpoint of control engineers because it solves the redundancy problem by identifying the one op...

journal_title：Biological cybernetics

authors： Loeb GE

更新日期：2012-12-01 00:00:00

abstract：:We extend a quantitative model for low-voltage, slow-wave excitability based on the T-type calcium current (Wang et al. 1991) by juxtaposing it with a Hodgkin-Huxley-like model for fast sodium spiking in the high voltage regime to account for the distinct firing modes of thalamic neurons. We employ bifurcation analysi...

journal_title：Biological cybernetics

authors： Rush ME,Rinzel J

更新日期：1994-01-01 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：:Inner hair cells (IHCs) transform the mechanical movements of the basilar membrane into electrical impulses. The impulse coding of the IHCs is the main information carrier in the auditory process and is the basis for improvements of cochlea implants as well as for low rate, high-quality speech processing and compressi...

journal_title：Biological cybernetics

authors： Meyer-Bäse U,Meyer-Bäse A,Scheich H

更新日期：2000-04-01 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：: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：:This paper deals with characterization and modelling of human handwriting motion from two forearm muscle activity signals, called electromyography signals (EMG). In this work, an experimental approach was used to record the coordinates of a pen tip moving on the (x, y) plane and EMG signals during the handwriting act....

journal_title：Biological cybernetics

authors： Chihi I,Abdelkrim A,Benrejeb M

更新日期：2016-02-01 00:00:00

abstract：:Two computer controlled experiments in an olfactory cross-modal matching task, using two-component odour mixtures matched against bar diagrams, were designed so that stimulus presentation was contingent upon the recent performance of the subject; stimuli that were relatively poorly (in experiment 1) or well (in experi...

journal_title：Biological cybernetics

authors： Gregson RA,Gates A

更新日期：1985-01-01 00:00:00

abstract：:Goal directed movements, executed by means of a manipulator with various dynamics, were investigated in order to establish to what extent the loading affects the executed movement. The desired movement concept, together with a describing function model for goal directed movements, was applied to parameterize the movem...

journal_title：Biological cybernetics

authors： Ruitenbeek JC

更新日期：1984-01-01 00:00:00