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, like Fitzhugh's, is of second order, with one equation of first degree and the other of third degree in the dynamical variables. Numerical solutions of the new system are compared with numerical solutions of the Hodgkin-Huxley and of the Fitzhugh equations.
journal_name
Biol Cybernjournal_title
Biological cyberneticsauthors
Game CJdoi
10.1007/BF00344278subject
Has Abstractpub_date
1982-01-01 00:00:00pages
223-9issue
3eissn
0340-1200issn
1432-0770journal_volume
44pub_type
杂志文章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
pub_type： 杂志文章
doi：10.1007/s00422-010-0388-4
更新日期：2010-09-01 00:00:00
abstract：:The response of a population of neurons to time-varying synaptic inputs can show a rich phenomenology, hardly predictable from the dynamical properties of the membrane's inherent time constants. For example, a network of neurons in a state of spontaneous activity can respond significantly more rapidly than each single...
journal_title：Biological cybernetics
pub_type： 杂志文章,评审
doi：10.1007/s00422-008-0270-9
更新日期：2008-11-01 00:00:00
abstract：:This article compiles an expose of Valentino Braitenberg's singular view on neuroanatomy and neuroscience. The review emphasizes his topologically informed work on neuroanatomy and his dialectics of brain-based explanations of motor behavior. Some of his early ideas on topologically informed neuroanatomy are presented...
journal_title：Biological cybernetics
pub_type： 传,历史文章,杂志文章,评审
doi：10.1007/s00422-012-0533-3
更新日期：2014-10-01 00:00:00
abstract：:Some interesting properties on pattern separation have been shown through researches by neural models of cerebellar cortex. It seems to us that those results are a part of the properties of pattern separation. A two layer random nerve net with inhibitory connections is given as a model of the cerebellar cortex. The mo...
journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/BF00336858
更新日期：1979-09-01 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
pub_type： 杂志文章
doi：10.1007/s00422-017-0719-9
更新日期：2017-08-01 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
pub_type： 杂志文章
doi：10.1007/BF00198096
更新日期：1990-01-01 00:00:00
abstract：:In a seminal paper, Witkin (1981) derived a model of surface slant and tilt recovery based on the statistics of the orientations of texture elements (texels) on a planar surface. This model made use of basic mathematical properties of probability distributions to formulate a posterior distribution on slant and tilt gi...
journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/s00422-010-0389-3
更新日期：2010-09-01 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
pub_type： 杂志文章
doi：10.1007/s00422-013-0569-z
更新日期：2013-12-01 00:00:00
abstract：:The problems related to kinematic redundancy in both task and joint space were investigated for arm prehension movements in this paper. After a detailed analysis of kinematic redundancy of the arm, it is shown that the redundancy problem is ill posed only for the control of hand orientation. An experiment was then des...
journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/s004220050538
更新日期：1999-06-01 00:00:00
abstract：:We propose an approach for desynchronization in an ensemble of globally coupled neural oscillators. The impact of washout filter aided mean field feedback on population synchronization process is investigated. By blocking the Hopf bifurcation of the mean field, the controller desynchronizes the ensemble. The technique...
journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/s00422-009-0334-5
更新日期：2009-09-01 00:00:00
abstract：:Estimating the behavior of a network of neurons requires accurate models of the individual neurons along with accurate characterizations of the connections among them. Whereas for a single cell, measurements of the intracellular voltage are technically feasible and sufficient to characterize a useful model of its beha...
journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/s00422-014-0601-y
更新日期：2014-06-01 00:00:00
abstract：:Evoked potential waveforms are generally of a dynamic, transient character. Consequently, their spectral energy distribution cannot be adequately described by time-invariant representations, such as the power density spectrum. Obviously, a spectro-temporal description is needed. Appropriate means for obtaining such de...
journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/BF00335365
更新日期：1981-01-01 00:00:00
abstract：:We propose a mathematical model of the human hypothalamus-anterior pituitary-thyroid system regulating basal metabolism, and practice computer simulation concerning primary thyropathy such as Graves' disease, hypothyroidism, T4-toxicosis and T3-toxicosis by use of this model. In order to throw light on properties of t...
journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/BF00336982
更新日期：1985-01-01 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
pub_type： 杂志文章
doi：10.1007/BF00201489
更新日期：1995-01-01 00:00:00
abstract：:The order parameter equation for the relative phase of correlated hand movements, derived in a previous paper by Haken et al. (1985), is extended to a time-dependent stochastic differential equation. Its solutions are determined close to stationary points and for the transition region. Remarkably good agreement betwee...
journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/BF00336995
更新日期：1986-01-01 00:00:00
abstract：:The question was investigated whether long-lasting transients of activity, observed to occur in the intact cerebral cortex (EEG slow (delta) waves and 'K' complexes) as well as in isolated tissues cultured in vitro, can also emerge in a model network of excitatory and inhibitory cells. We show that such transients can...
journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/BF00204400
更新日期：1992-01-01 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
pub_type： 杂志文章
doi：10.1007/BF00355540
更新日期：1986-01-01 00:00:00
abstract：:The generation of informational sequences and their reorganization or reshaping is one of the most intriguing subjects for both neuroscience and the theory of autonomous intelligent systems. In spite of the diversity of sequential activities of sensory, motor, and cognitive neural systems, they have many similarities ...
journal_title：Biological cybernetics
pub_type： 杂志文章,评审
doi：10.1007/s00422-006-0121-5
更新日期：2006-12-01 00:00:00
abstract：:We study the dynamics of a system of coupled nonlinear oscillators that has been used to model coordinated human movement behavior. In contrast to earlier work we examine the case where the two component oscillators have different eigenfrequencies. Problems related to the decomposition of a time series (from an experi...
journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/BF00199134
更新日期：1996-01-01 00:00:00
abstract：:A minimum mean square error (MMSE) estimation scheme is employed to identify the synaptic connectivity in neural networks. This new approach can substantially reduce the amount of data and the computational cost involved in the conventional correlation methods, and is suitable for both nonstationary and stationary neu...
journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/BF00198088
更新日期：1991-01-01 00:00:00
abstract：:Synaptic release was simulated using a Simulink sequential storage model with three vesicular pools. Modeling was modular and easily extendable to the systems with greater number of vesicular pools, parallel input, or time-varying parameters. Given an input (short or long tetanic trains, patterned or random stimulatio...
journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/s00422-003-0432-8
更新日期：2004-01-01 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
pub_type： 杂志文章
doi：10.1007/s00422-010-0396-4
更新日期：2010-10-01 00:00:00
abstract：:The peripheral auditory system of lizards has been extensively studied, because of its remarkable directionality. In this paper, we review the research that has been performed on this system using a biorobotic approach. The various robotic implementations developed to date, both wheeled and legged, of the auditory mod...
journal_title：Biological cybernetics
pub_type： 杂志文章,评审
doi：10.1007/s00422-016-0701-y
更新日期：2016-10-01 00:00:00
abstract：:Fast as possible (time optimal) single joint movements throughout the body are characterized by the triphasic (3 pulse) pattern of activation in the agonist and antagonist muscles. Simulation studies using a sixth order, non-linear model were undertaken to determine the relationship between time optimal movement and t...
journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/BF00338824
更新日期：1987-01-01 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
pub_type： 杂志文章
doi：10.1007/s004220000169
更新日期：2000-09-01 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
pub_type： 杂志文章
doi：10.1007/s00422-013-0564-4
更新日期：2013-12-01 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
pub_type： 杂志文章
doi：10.1007/s004220050510
更新日期：1999-02-01 00:00:00
abstract：:We present a model for the development of ocularity domains in the visual cortex of mammals during the embryonic stage. We model the thalamo-cortical pathway with a self-organising neural network with two source layers, each of them serving different retinae, and one target layer, where the connections end. The connec...
journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/BF00652225
更新日期：1996-03-01 00:00:00
abstract：:In primates, it is well known that there is a consistent relationship between the duration, peak velocity and amplitude of saccadic eye movements, known as the 'main sequence'. The reason why such a stereotyped relationship evolved is unknown. We propose that a fundamental constraint on the deployment of foveal vision...
journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/s00422-006-0064-x
更新日期：2006-07-01 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
pub_type： 杂志文章
doi：10.1007/BF00341924
更新日期：1986-01-01 00:00:00
