Abstract：
:In this paper, we present a continuous attractor network model that we hypothesize will give some suggestion of the mechanisms underlying several neural processes such as velocity tuning to visual stimulus, sensory discrimination, sensorimotor transformations, motor control, motor imagery, and imitation. All of these processes share the fundamental characteristic of having to deal with the dynamic integration of motor and sensory variables in order to achieve accurate sensory prediction and/or discrimination. Such principles have already been described in the literature by other high-level modeling studies (Decety and Sommerville in Trends Cogn Sci 7:527-533, 2003; Oztop et al. in Neural Netw 19(3):254-271, 2006; Wolpert et al. in Philos Trans R Soc 358:593-602, 2003). With respect to these studies, our work is more concerned with biologically plausible neural dynamics at a population level. Indeed, we show that a relatively simple extension of the classical neural field models can endow these networks with additional dynamic properties for updating their internal representation using external commands. Moreover, an analysis of the interactions between our model and external inputs also shows interesting properties, which we argue are relevant for a better understanding of the neural processes of the brain.
journal_name
Biol Cybernjournal_title
Biological cyberneticsauthors
Sauser EL,Billard AGdoi
10.1007/s00422-006-0131-3subject
Has Abstractpub_date
2006-12-01 00:00:00pages
567-88issue
6eissn
0340-1200issn
1432-0770journal_volume
95pub_type
杂志文章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：:This paper concerns the processing of the outputs of the two opponent-color mechanisms in the human visual system. We present experimental evidence that opponent-color signals interact after joint modulation even though they are essentially independent under neutral steady adaptation and after exclusive modulation of ...
journal_title：Biological cybernetics
pub_type： 杂志文章
doi：
更新日期：1993-01-01 00:00:00
abstract：:A system of coupled bistable Hopf oscillators with an external periodic input source was used to model the ability of interacting neural populations to synchronize and desynchronize in response to variations of the input signal. We propose that, in biological systems, the settings of internal and external coupling str...
journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/s004220050023
更新日期：2000-03-01 00:00:00
abstract：:The short-term (i.e., days) and long-term (i.e., months) effects of adaptation to posturography examinations were investigated in 12 normal subjects who were repeatedly examined for five consecutive days and again after 90 days. The examinations were conducted both with eyes open and closed, and the perturbations were...
journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/s00422-001-0305-y
更新日期：2002-05-01 00:00:00
abstract：:Simulations of neural activity are commonly based on differential equations. We address the question what can be achieved with a simplified discrete model. The proposed model resembles artificial neural networks enriched with additional biologically inspired features. A neuron has several states, and the state transit...
journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/s00422-020-00826-w
更新日期：2020-06-01 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：:Neurons receive a continual stream of excitatory and inhibitory synaptic inputs. A conductance-based neuron model is used to investigate how the balanced component of this input modulates the amplitude of neuronal responses. The output spiking rate is well described by a formula involving three parameters: the mean mu...
journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/s00422-003-0408-8
更新日期：2003-08-01 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：: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
pub_type： 杂志文章
doi：10.1007/s00422-012-0491-9
更新日期：2012-07-01 00:00:00
abstract：:Tongue movements during speech production have been investigated by means of a simple yet realistic biomechanical model, based on a finite elements modeling of soft tissues, in the framework of the equilibrium point hypothesis (lambda-model) of motor control. In particular, the model has been applied to the estimation...
journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/s004220050362
更新日期：1997-07-01 00:00:00
abstract：:An "adaptation model" having two stages is introduced and its mathematical properties are examined. The two stages are the "adaptive process" (parameter Kb), which has bleaching-type kinetics, and the "response function" (parameters Kr and n), which incorporates response saturation. In order to study the increment thr...
journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/BF00361040
更新日期：1978-09-28 00:00:00
abstract：:Reported here are the results from two experiments designed to investigate Mateeff and Gourevich's (1983, 1984) claim that adult observers make large constant errors when judging the direction of briefly presented peripheral targets, with respect to a continuously visible scale. Experiment 1 involved a virtually exact...
journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/BF00204123
更新日期：1989-01-01 00:00:00
abstract：:This study is concerned with synaptic reorganization in local neuronal networks. Within networks of 30 neurons, an initial disequilibrium in connectivity has to be compensated by reorganization of synapses. Such plasticity is not a genetically determined process, but depends on results of neuronal interaction. Neurobi...
journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/BF00364134
更新日期：1988-01-01 00:00:00
abstract：:This paper deals with the problem of representing and generating unconstrained aiming movements of a limb by means of a neural network architecture. The network produced time trajectories of a limb from a starting posture toward targets specified by sensory stimuli. Thus the network performed a sensory-motor transform...
journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/BF02414903
更新日期：1989-01-01 00:00:00
abstract：:An intracellular recording made from the retinal luminosity horizontal cell (LHC) demonstrated that repetitive red flashes enhanced the cell's responsiveness to red stimulus and depressed its responsiveness to green stimulus and that repetitive green flashes suppressed the cell's red response but produced little chang...
journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/s00422-002-0392-4
更新日期：2003-05-01 00:00:00
abstract：:The present paper examines human hand impedance characteristics, including inertia and viscosity as well as stiffness, in multi-joint arm movements. While a subject maintains a given hand location, small external disturbances are applied to his hand by a manipulandum. The corresponding force-displacement vectors are m...
journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/BF00199890
更新日期：1995-01-01 00:00:00
abstract：:Neurons in sensory cortices are often assumed to be "feature detectors", computing simple and then successively more complex features out of the incoming sensory stream. These features are somehow integrated into percepts. Despite many years of research, a convincing candidate for such a feature in primary auditory co...
journal_title：Biological cybernetics
pub_type： 杂志文章,评审
doi：10.1007/s00422-003-0445-3
更新日期：2003-11-01 00:00:00
abstract：:Small inhibitory neuronal circuits have long been identified as key neuronal motifs to generate and modulate the coexisting rhythms of various motor functions. Our paper highlights the role of a cellular switching mechanism to orchestrate such circuits. The cellular switch makes the circuits reconfigurable, robust, ad...
journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/s00422-018-0778-6
更新日期：2019-04-01 00:00:00
abstract：:This work proposes a model of visual bottom-up attention for dynamic scene analysis. Our work adds motion saliency calculations to a neural network model with realistic temporal dynamics [(e.g., building motion salience on top of De Brecht and Saiki Neural Networks 19:1467-1474, (2006)]. The resulting network elicits ...
journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/s00422-012-0542-2
更新日期：2013-04-01 00:00:00
abstract：:Motion repulsion is the perceived enlargement of the angle between the directions of motion of two transparently moving patterns. An explanation of this illusion has long been sought for in the neural circuitry of the brain. We show that motion repulsion already arises from the statistical properties of the motion tra...
journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/s00422-005-0556-0
更新日期：2005-04-01 00:00:00
abstract：:Synchronization of the oscillatory discharge of cortical neurons could be a part of the mechanism that is involved in cortical information processing. On the assumption that the basic functional unit is the column composed of local excitatory and inhibitory cells and generating oscillatory neural activity, a network m...
journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/BF00202761
更新日期：1994-01-01 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
pub_type： 杂志文章
doi：10.1007/BF00346140
更新日期：1984-01-01 00:00:00
abstract：:The present report presents an attempt to define the physiological parameter used to describe "voice tremor" in psychological stress evaluating machines, and to find its sources. This parameter was found to be a low frequency (5-20 Hz) random process which frequency modulates the vocal cord waveform and (independently...
journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/BF00340063
更新日期：1983-01-01 00:00:00
abstract：:Connections among ventrolateral medullary respiratory neurons inferred from spike train analysis were incorporated into a model and simulated with the program SYSTM11 (MacGregor 1987). Inspiratory (I) and expiratory (E) neurons with augmenting (AUG) and decrementing (DEC) discharge patterns and rostral I-E/I neurons e...
journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/BF00200329
更新日期：1994-01-01 00:00:00
abstract：:Many tasks require the arm to move from its initial position to a specified target position, but leave us free to choose the trajectory between them. This paper presents and tests the hypothesis that trajectories are chosen to minimize metabolic energy costs. Costs are calculated for the range of possible trajectories...
journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/s004220050324
更新日期：1997-02-01 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：:A method that enables measurement of the degree of coupling between two signals is presented. The method is based on the definition of an uncoupling function calculating, by means of entropy rates, the minimum amount of independent information (i.e. the information carried by one signal which cannot be derived from th...
journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/s004220050549
更新日期：1999-08-01 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
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
pub_type： 杂志文章
doi：10.1007/BF00201423
更新日期：1995-08-01 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
