Abstract:
:The Craik-O'Brien illusion was measured for patterns of negative and positive contrast by a compensation method. The illusion of negative contrast (black teeth on uniform field) was stronger than that of positive one (white teeth). The amount of compensation increased linearly with increasing tooth width, but was nonlinear, showing two phases with increasing tooth height. The results might be explained by the concept of the antagonistic and nonantagonistic mechanisms in the lower stage of the visual system, and the reconstructive process of the barrier activity against the lateral spread in the higher stage.
journal_name
Biol Cybernjournal_title
Biological cyberneticsauthors
Hamada Jdoi
10.1007/BF00364002subject
Has Abstractpub_date
1985-01-01 00:00:00pages
117-22issue
2eissn
0340-1200issn
1432-0770journal_volume
52pub_type
杂志文章abstract::The conductance-based refractory density (CBRD) approach is an efficient tool for modeling interacting neuronal populations. The model describes the firing activity of a statistical ensemble of uncoupled Hodgkin-Huxley-like neurons, each receiving individual Gaussian noise and a common time-varying deterministic input...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/s00422-017-0727-9
更新日期:2017-12-01 00:00:00
abstract::The amount of power in different frequency bands of the electroencephalogram (EEG) carries information about the behavioral state of a subject. Hence, neurologists treating epileptic patients monitor the temporal evolution of the different bands. We propose a covariance-based method to detect and characterize epilepti...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/s00422-020-00840-y
更新日期:2020-10-01 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
pub_type: 杂志文章
doi:10.1007/s004220050543
更新日期:1999-07-01 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
pub_type: 杂志文章
doi:10.1007/s004220050297
更新日期:1996-10-01 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::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::Isolated and cultured neonatal cardiac myocytes contract spontaneously and cyclically, and have the properties of a non-linear oscillator. In this study, we have analyzed the relationship between the fluctuation of contraction rhythm of spontaneously beating cultured cardiac myocytes, and the coupling strength among t...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/s00422-001-0285-y
更新日期:2002-02-01 00:00:00
abstract::Depolarization of an excitable membrane has a dual effect; excitatory in that it causes rapid opening of calcium and/or sodium channels but inhibitory in that it also causes those channels to inactivate. We considered whether apparently paradoxical or dual behavior might be exhibited by excitatory and inhibitory synap...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/BF00197289
更新日期:1991-01-01 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
pub_type: 杂志文章
doi:10.1007/s00422-014-0626-2
更新日期:2014-10-01 00:00:00
abstract::Statistical properties of spike trains as well as other neurophysiological data suggest a number of mathematical models of neurons. These models range from entirely descriptive ones to those deduced from the properties of the real neurons. One of them, the diffusion leaky integrate-and-fire neuronal model, which is ba...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/s00422-016-0690-x
更新日期:2016-06-01 00:00:00
abstract::This paper presents a model for the circadian temporization system of mammals which associates the synchronization dynamics of coupling oscillators to a set of equations able to reproduce the synaptic characteristics of somatodendritic membrane of neurons. The circadian timing system is organized in a way to receive i...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/s00422-009-0309-6
更新日期:2009-05-01 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
pub_type: 杂志文章,评审
doi:10.1007/s00422-002-0353-y
更新日期:2002-12-01 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
pub_type: 杂志文章
doi:10.1007/s00422-018-0746-1
更新日期:2018-06-01 00:00:00
abstract::The idea that a sparse representation is the computational principle of visual systems has been supported by Olshausen and Field [Nature (1996) 381: 607-609] and many other studies. On the other hand neurons in the inferotemporal cortex respond to moderately complex features called icon alphabets, and such neurons res...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/s004220000149
更新日期:2000-08-01 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
pub_type: 杂志文章
doi:10.1007/BF00200811
更新日期:1993-01-01 00:00:00
abstract::A central pattern generator (CPG) is built to control a mechanical device (plant) inspired by the pyloric chamber of the lobster. Conductance-based models are used to construct the neurons of the CPG. The plant has an associated function that measures the amount of food flowing through it per unit of time. We search f...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/PL00007963
更新日期:2000-01-01 00:00:00
abstract::An initial test for a theory of lateral hypothalamic regulation of electrocortical activity is undertaken. The theory supposes lateral hypothalamic input directly or indirectly damps telencephalic resonances involving linear wave phenomena, enabling this pathway to act as parametric control of information processing i...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/BF00337154
更新日期:1984-01-01 00:00:00
abstract::Earlier experimental studies by one of us (Kelso, 1981a, 1984) have shown that abrupt phase transitions occur in human hand movements under the influence of scalar changes in cycling frequency. Beyond a critical frequency the originally prepared out-of-phase, antisymmetric mode is replaced by a symmetrical, in-phase m...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/BF00336922
更新日期:1985-01-01 00:00:00
abstract::One possible strategy for the solution of the correspondence problem of stereo matching is the coarse-to-fine mechanism: The matching process starts with a lowpass-filtered version of the stereogram where only a few, high-contrast image features can be extracted and the probability of false matches is therefore low. I...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/BF00204198
更新日期:1996-02-01 00:00:00
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
pub_type: 杂志文章
doi:10.1007/BF00199546
更新日期:1995-11-01 00:00:00
abstract::A mathematical muscle model is presented that relates neural control signals linearly to muscle force without violating important known physiological constraints, such as the size-principle (Henneman and Mendell 1981) and non-linear twitch summation (Burke et al. 1976). This linearity implies that the neural control s...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/BF00206220
更新日期:1991-01-01 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
pub_type: 杂志文章
doi:10.1007/BF00336981
更新日期:1985-01-01 00:00:00
abstract::A mathematical model of the central neural mechanisms of respiratory rhythm generation is developed. This model assumes that the respiratory cycle consists of three phases: inspiration, post-inspiration, and expiration. Five respiratory neuronal groups are included: inspiratory, late-inspiratory, post-inspiratory, exp...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/BF00203037
更新日期:1990-01-01 00:00:00
abstract::1. Results from the companion paper were incorporated into a physiologically realistic computer model of the three principal cell types (PD/AB, LP, PY) of the pyloric network in the stomatogastric ganglion. Parameters for the model were mostly calculated (sometimes estimated) from experimental data rather than fitting...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/BF00337411
更新日期:1979-08-01 00:00:00
abstract::The previous companion paper describes the initial (seed) schema architecture that gives rise to the observed prey-catching behavior. In this second paper in the series we describe the fundamental adaptive processes required during learning after lesioning. Following bilateral transections of the hypoglossal nerve, an...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/s00422-005-0014-z
更新日期:2005-12-01 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
pub_type: 杂志文章
doi:10.1007/BF00355540
更新日期:1986-01-01 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::Using the theory of random point processes, a method is presented whereby functional relationships between neurons can be detected and modeled. The method is based on a point process characterization involving stochastic intensities and an additive rate function model. Estimates are based on the maximum likelihood (ML...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/BF00332915
更新日期:1988-01-01 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 a simple measure of neural sensitivity for characterizing stimulus coding. Sensitivity is defined as the fraction of neurons that show positive responses to n stimuli out of a total of N. To determine a positive response, we propose two methods: Fisherian statistical testing and a data-driven Bayesian appro...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/s00422-009-0297-6
更新日期:2009-04-01 00:00:00