Abstract:
:Synchronization properties of locally coupled neural oscillators were investigated analytically and by computer simulation. When coupled in a manner that mimics excitatory chemical synapses, oscillators having more than one time scale (relaxation oscillators) are shown to approach synchrony using mechanisms very different from that of oscillators with a more sinusoidal waveform. The relaxation oscillators make critical use of fast modulations of their thresholds, leading to a rate of synchronization relatively independent of coupling strength within some basin of attraction; this rate is faster for oscillators that have conductance-based features than for neural caricatures such as the FitzHugh-Nagumo equations that lack such features. Computer simulations of one-dimensional arrays show that oscillators in the relaxation regime synchronize much more rapidly than oscillators with the same equations whose parameters have been modulated to yield a more sinusoidal waveform. We present a heuristic explanation of this effect based on properties of the coupling mechanisms that can affect the way the synchronization scales with array length. These results suggest that the emergent synchronization behavior of oscillating neural networks can be dramatically influenced by the intrinsic properties of the network components. Possible implications for perceptual feature binding and attention are discussed.
journal_name
Biol Cybernjournal_title
Biological cyberneticsauthors
Somers D,Kopell Ndoi
10.1007/BF00198772subject
Has Abstractpub_date
1993-01-01 00:00:00pages
393-407issue
5eissn
0340-1200issn
1432-0770journal_volume
68pub_type
杂志文章abstract::Spikes in the membrane potential of neurons comprise the currency of information processing in the brain. The ability of neurons to convert any information present across their multiple inputs into a significant modification to the pattern of their emitted spikes depends on the rate at which they emit spikes. If the m...
journal_title:Biological cybernetics
pub_type: 杂志文章,评审
doi:10.1007/s00422-018-0768-8
更新日期:2019-04-01 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
pub_type: 杂志文章
doi:10.1007/s004220050435
更新日期:1998-04-01 00:00:00
abstract::The availability of a simple-to-use, automatic measurement system for noninvasive flow estimation is imperative, given the clinical demand for an acceptable noninvasive procedure rather than the standard invasive procedure of thermodilution. A method for calculating cardiac output from noninvasively derived pressure p...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/s004220050372
更新日期:1997-08-01 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::The behavior of the space-clamped Hodgkin-Huxley model has been studied using band-limited white noise (0-50 Hz) as the input membrane current and taking the output as a point process in time given by the peaks of the action potentials. The frequency response and coherence functions were measured by use of the Fourier...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/BF00334462
更新日期:1984-01-01 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
pub_type: 杂志文章
doi:10.1007/BF00318721
更新日期:1987-01-01 00:00:00
abstract::The Hodgkin-Huxley equations with a slight modification are investigated, in which the inactivation process (h) of sodium channels or the activation process of potassium channels (n) is slowed down. We show that the equations produce a variety of action potential waveforms ranging from a plateau potential, such as in ...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/PL00007996
更新日期:2001-07-01 00:00:00
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journal_title:Biological cybernetics
pub_type: 历史文章,杂志文章
doi:10.1007/s00422-014-0609-3
更新日期:2014-10-01 00:00:00
abstract::This paper studies the performance of single-layered neural networks. This study begins with the performance of single-layered neural networks trained using the outer-product rule. The outer-product rule is a suboptimal learning scheme, resulting under certain assumptions from optimal least-squares training of single-...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/BF00203135
更新日期:1992-01-01 00:00:00
abstract::The dynamic response of the human ankle joint to a bandlimited random torque perturbation superimposed on a constant bias torque is observed in normal human subjects. The applied torque input, the joint angular rotation output, and the electromyographic activity using surface electrodes from the extensor and the flexo...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/BF00357923
更新日期:1984-01-01 00:00:00
abstract::It is generally held that the right and left middle ears of mammals are acoustically isolated from each other, such that mammals must rely on neural computation to derive sound localisation cues. There are, however, some unusual species in which the middle ear cavities intercommunicate, in which case each ear might be...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/s00422-015-0675-1
更新日期:2016-10-01 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::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
pub_type: 杂志文章
doi:10.1007/s00422-002-0324-3
更新日期:2002-07-01 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
pub_type: 杂志文章,评审
doi:10.1007/s00422-015-0651-9
更新日期:2015-10-01 00:00:00
abstract::Parameters in diffusion neuronal models are divided into two groups; intrinsic and input parameters. Intrinsic parameters are related to the properties of the neuronal membrane and are assumed to be known throughout the paper. Input parameters characterize processes generated outside the neuron and methods for their e...
journal_title:Biological cybernetics
pub_type: 杂志文章,评审
doi:10.1007/s00422-008-0237-x
更新日期:2008-11-01 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::Models built using mean data can represent only a very small percentage, or none, of the population being modeled, and produce different activity than any member of it. Overcoming this "averaging" pitfall requires measuring, in single individuals in single experiments, all of the system's defining characteristics. We ...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/s00422-012-0530-6
更新日期:2012-11-01 00:00:00
abstract::We present a biologically oriented model that accounts for left-right discrimination in the cockroach's escape behavior. The model includes the main groups of neurons found to be involved in the escape response. Each one of the included neurons is described by the actual processes taking place in an individual neuron ...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/s004220050546
更新日期:1999-08-01 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
pub_type: 杂志文章
doi:10.1007/BF02331340
更新日期:1990-01-01 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
pub_type: 杂志文章
doi:10.1007/s00422-012-0511-9
更新日期:2012-12-01 00:00:00
abstract::We propose a new multilayered neural network model which has the ability of rapid self-organization. This model is a modified version of the cognitron (Fukushima, 1975). It has modifiable inhibitory feedback connections, as well as conventional modifiable excitatory feedforward connections, between the cells of adjoin...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/BF00336963
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
pub_type: 杂志文章
doi:10.1007/BF00201489
更新日期:1995-01-01 00:00:00
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journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/BF00335365
更新日期:1981-01-01 00:00:00
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journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/BF00337392
更新日期:1979-03-19 00:00:00
abstract::The concepts of pattern dynamics and their adaptation through behavioral information, developed in the context of rhythmic movement coordination, are generalized to describe discrete movements of single components and the coordination of multiple components in discrete movement. In a first step we consider only one sp...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/BF00203449
更新日期:1990-01-01 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::Neuronal output properties for input stimuli that evoke a deterministic response can be efficiently described by the interspike-interval function (Awiszus 1988a). It is shown in this paper that there are stimuli for which both the Hodgkin-Huxley (HH-) model of an action potential encoding membrane (Hodgkin and Huxley ...
journal_title:Biological cybernetics
pub_type: 杂志文章,评审
doi:10.1007/BF00204770
更新日期:1989-01-01 00:00:00
abstract::Spike-timing-dependent plasticity (STDP) determines the evolution of the synaptic weights according to their pre- and post-synaptic activity, which in turn changes the neuronal activity. In this paper, we extend previous studies of input selectivity induced by (STDP) for single neurons to the biologically interesting ...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/s00422-009-0319-4
更新日期:2009-08-01 00:00:00
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journal_title:Biological cybernetics
pub_type: 杂志文章,评审
doi:10.1007/BF00201441
更新日期:1990-01-01 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
pub_type: 杂志文章,评审
doi:10.1007/s00422-015-0672-4
更新日期:2016-10-01 00:00:00