Abstract:
:The lateral-line system is a unique facility of aquatic animals to locate predator, prey, or conspecifics. We present a detailed model of how the clawed frog Xenopus, or fish, can localize submerged moving objects in three dimensions by using their lateral-line system. In so doing we develop two models of a slightly different nature. First, we exploit the characteristic properties of the velocity field, such as zeros and maxima or minima, that a moving object generates at the lateral-line organs and that are directly accessible neuronally, in the context of a simplified geometry. In addition, we show that the associated neuronal model is robust with respect to noise. Though we focus on the superficial neuromasts of Xenopus the same arguments apply mutatis mutandis to the canal lateral-line system of fish. Second, we present a full-blown three-dimensional reconstruction of the source on the basis of a maximum likelihood argument.
journal_name
Biol Cybernjournal_title
Biological cyberneticsauthors
Franosch JM,Sichert AB,Suttner MD,van Hemmen JLdoi
10.1007/s00422-005-0005-0keywords:
subject
Has Abstractpub_date
2005-10-01 00:00:00pages
231-8issue
4eissn
0340-1200issn
1432-0770journal_volume
93pub_type
杂志文章abstract::In this paper we present a systematic method for generating simulations of nonstationary EEG. Such simulations are needed, for example, in the evaluation of tracking algorithms. First a state evolution process is simulated. The states are initially represented as segments of stationary autoregressive processes which a...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/s004220050348
更新日期:1997-05-01 00:00:00
abstract::Texture gradients are systematic variations in projected surface texture. It is expected that image variables such as texture density or size carry information about the surface orientation and distance. This article reexamines the information content of texture gradients and reviews the relevant psychophysics. Slant ...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/BF00336727
更新日期:1981-01-01 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::A model is presented which accounts for many characteristic response properties used to classify anuran ganglion cell types while being consistent with data concerning interneurons. In the model color is ignored and input stimuli are assumed to be only black and white at high contrast. We show that accurate ganglion c...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/BF00201980
更新日期:1991-01-01 00:00:00
abstract::The mechanisms that control the limbs position during rhythmic voluntary oscillations were investigated in ten subjects, who were asked to synchronise the lower peak of their hand or foot rhythmic oscillations to a metronome beat. The efficacy of the "position control" was estimated by measuring the degree of synchron...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/s00422-007-0159-z
更新日期:2007-08-01 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::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::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::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::Color vision in humans is independent over a wide range of the spectral composition of the illuminating light (Young 1807; Hering 1879). The retinex theory accounts for this color constancy by assuming that for each of the three waveband channels determined by the retinal cones a global lightness record of the scene i...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/BF00338814
更新日期:1987-01-01 00:00:00
abstract::It is well known that the human postural control system responds to motion of the visual scene, but the implicit assumptions it makes about the visual environment and what quantities, if any, it estimates about the visual environment are unknown. This study compares the behavior of four models of the human postural co...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/s00422-004-0535-x
更新日期:2005-03-01 00:00:00
abstract::This paper continues the investigation of a three-loop representation of the segmental muscle stretch reflex system introduced in a preceding communication. Frequency response characteristics were computed for open-loop conditions, control and disturbance signal inputs under a variety of conditions: (i) "in parallel" ...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/BF00326681
更新日期:1981-01-01 00:00:00
abstract::The present paper considers the relation between the shape of a triangle and probability of its recognition. An effect of triangle size on perception of its shape is examined in the first experiment. In the second the loci of eye fixations during triangle recognition task are recorded and analysed. A simulation model ...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/BF00363955
更新日期:1988-01-01 00:00:00
abstract::Voltage-clamp of excitable membrane allows the measurement of membrane currents associated with electrical potential changes across the membrane. However, it has been impossible in practice to apply the conventional analog feedback voltage-clamp circuits to single electrode voltage clamping in central neurons. The rea...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/BF00355690
更新日期:1985-01-01 00:00:00
abstract::Response patterns recorded with 30 microelectrodes from area 17 of anaesthetized monkeys are analysed. A proportion of the patterns are used to define prototype response patterns. These in turn are used to recognize the stimulus from further non-averaged response patterns. In comparison, recognition by a feedforward '...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/BF00194921
更新日期:1996-04-01 00:00:00
abstract::This article presents the use of continuous dynamic models in the form of differential equations to describe and predict temporal changes in biological processes and discusses several of its important advantages over discontinuous bistable ones, exemplified on the stick insect walking system. In this system, coordinat...
journal_title:Biological cybernetics
pub_type: 杂志文章,评审
doi:10.1007/s00422-011-0446-6
更新日期:2011-07-01 00:00:00
abstract::This article describes current views on motor and sensory control of extraocular muscles (EOMs) based on anatomical data. The special morphology of EOMs, including their motor innervation, is described in comparison to classical skeletal limb and trunk muscles. The presence of proprioceptive organs is reviewed with em...
journal_title:Biological cybernetics
pub_type: 杂志文章,评审
doi:10.1007/s00422-012-0519-1
更新日期:2012-12-01 00:00:00
abstract::A multisegment, multijoint model of a falling animal is presented to examine the effectiveness of a two-stage control scheme in a zero-momentum self-righting maneuver. The model contains a much larger number of degrees of freedom than is required to execute a self-righting maneuver and is thus capable of providing mul...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/s004220050488
更新日期:1998-11-01 00:00:00
abstract::The trace version of classical conditioning is used as a prototypical hippocampal-dependent task to study the recoding sequence prediction theory of hippocampal function. This theory conjectures that the hippocampus is a random recoder of sequences and that, once formed, the neuronal codes are suitable for prediction....
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/s00422-005-0568-9
更新日期:2005-06-01 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
pub_type: 杂志文章
doi:10.1007/s00422-014-0625-3
更新日期:2014-12-01 00:00:00
abstract::Sixty subjects were tested to assign orientation to ten dot patterns differing in their overall form and the number of dots in the pattern. The patterns were presented in four different positions in the visual field and their orientation was estimated in two ways. It was demonstrated that the assignment of orientation...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/BF00335157
更新日期:1981-01-01 00:00:00
abstract::The evolutionary transition from water to land required new locomotor modes and corresponding adjustments of the spinal "central pattern generators" for locomotion. Salamanders resemble the first terrestrial tetrapods and represent a key animal for the study of these changes. Based on recent physiological data from sa...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/s00422-012-0538-y
更新日期:2013-10-01 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::This paper concerns the use of tracking studies to test a theoretical account of the information processing performed by the human CNS during control of movement. The theory provides a bridge between studies of reaction time and continuous tracking. It is proposed that the human CNS includes neuronal circuitry to comp...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/BF00364156
更新日期:1988-01-01 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::A signal-tuned approach has been recently introduced for modeling stimulus-dependent cortical receptive fields. The approach is based on signal-tuned Gabor functions, which are Gaussian-modulated sinusoids whose parameters are obtained from a "tuning" signal. Given a stimulus to a cell, it is taken as the tuning signa...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/s00422-015-0653-7
更新日期:2015-10-01 00:00:00
abstract::This report demonstrates the effectiveness of two processes in constructing simple feedforward networks which perform good transformations on their inputs. Good transformations are characterized by the minimization of two information measures: the information loss incurred with the transformation and the statistical d...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/BF00202569
更新日期:1993-01-01 00:00:00
abstract::Nicotinic acetylcholine receptors are transmembrane oligomeric proteins that mediate interconversions between open and closed channel states under the control of neurotransmitters. Fast in vitro chemical kinetics and in vivo electrophysiological recordings are consistent with the following multi-step scheme. Upon bind...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/s004220050302
更新日期:1996-11-01 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::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