Abstract:
:Multiplying memory span by mental speed, we obtain the information entropy of short-term memory capacity, which is rate-limiting for cognitive functions and corresponds with EEG power spectral density. The number of EEG harmonics (n = 1, 2,..., 9) is identical with memory span, and the eigenvalues of the EEG impulse response are represented by the zero-crossings up to the convolved fundamental, the P300. In analogy to quantum mechanics the brain seems to be an ideal detector simply measuring the energy of wave forms. No matter what the stimulus is and how the brain behaves, the metric of signal and memory can always be understood as a superposition of n pi states of different energy and their eigenvalues.
journal_name
Biol Cybernjournal_title
Biological cyberneticsauthors
Weiss Vdoi
10.1007/BF00201438keywords:
subject
Has Abstractpub_date
1992-01-01 00:00:00pages
165-72issue
2eissn
0340-1200issn
1432-0770journal_volume
68pub_type
杂志文章abstract::In the first part of lifting movements, the trunk movement is surprisingly resistant to perturbations. This study examined which factors contribute to this perturbation resistance of the trunk during lifting. Three possible mechanisms were studied: force-length-velocity characteristics of muscles, the momentum of the ...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/s00422-005-0583-x
更新日期:2005-07-01 00:00:00
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, ...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/BF00344278
更新日期:1982-01-01 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
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journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/s004220050377
更新日期:1997-09-01 00:00:00
abstract::A new method is presented for quantitative evaluation of single-sweep phase and amplitude electro-encephalogram (EEG) characteristics that is a more informative approach in comparison with conventional signal averaging. In the averaged potential, phase-locking and amplitude effects of the EEG response cannot be separa...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/s004220050335
更新日期:1997-03-01 00:00:00
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journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/s004220000149
更新日期:2000-08-01 00:00:00
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journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/s004220050297
更新日期:1996-10-01 00:00:00
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journal_title:Biological cybernetics
pub_type: 杂志文章,评审
doi:10.1007/s00422-008-0233-1
更新日期:2008-06-01 00:00:00
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journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/s00422-003-0452-4
更新日期:2004-02-01 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::We extend a quantitative model for low-voltage, slow-wave excitability based on the T-type calcium current (Wang et al. 1991) by juxtaposing it with a Hodgkin-Huxley-like model for fast sodium spiking in the high voltage regime to account for the distinct firing modes of thalamic neurons. We employ bifurcation analysi...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/BF00239616
更新日期:1994-01-01 00:00:00
abstract::Mathematical or computational models of activity-dependent neural competition typically impose competition in anatomically fixed networks by the use of synaptic normalisation, for which there is very little experimental support. Recent experimental evidence, however, strongly implicates neurotrophic factors in neural ...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/s004220050311
更新日期:1996-12-01 00:00:00
abstract::A new method based on neural networks to cluster proteins into families is described. The network is trained with the Kohonen unsupervised learning algorithm, using matrix pattern representations of the protein sequences as inputs. The components (x, y) of these 20 x 20 matrix patterns are the normalized frequencies o...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/BF00204658
更新日期:1991-01-01 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::Rotations of the eye are generated by the torques that the eye muscles apply to the eye. The relationship between eye orientation and the direction of the torques generated by the extraocular muscles is therefore central to any understanding of the control of three-dimensional eye movements of any type. We review the ...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/s00422-004-0477-3
更新日期:2004-06-01 00:00:00
abstract::Panoramic image differences can be used for view-based homing under natural outdoor conditions, because they increase smoothly with distance from a reference location (Zeil et al., J Opt Soc Am A 20(3):450-469, 2003). The particular shape, slope and depth of such image difference functions (IDFs) recorded at any one p...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/s00422-007-0147-3
更新日期:2007-05-01 00:00:00
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journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/BF00201480
更新日期:1995-10-01 00:00:00
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journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/BF00317975
更新日期:1982-01-01 00:00:00
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 d...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/s00422-005-0005-0
更新日期:2005-10-01 00:00:00
abstract::Based on a complexity analysis of mutual information transmission of EEG developed by us [Xu J, Liu Z, Liu R, Yang Q (1997) Physica D 106: 363-374], dynamic processes of the complexity of mutual information transmission in human brains were studied. To diminish possible problems due to coarse graining preprocessing, s...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/s004220000158
更新日期:2000-10-01 00:00:00
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journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/s00422-008-0246-9
更新日期:2008-08-01 00:00:00
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journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/BF00339943
更新日期:1985-01-01 00:00:00
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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::A neural model is proposed for the spatiotemporal properties of simple cells in the visual cortex. In the model, several cortical cells are arranged on a ring, with mutual excitatory or inhibitory connections. The cells also receive excitatory inputs either from lagged and nonlagged cells of the lateral geniculate nuc...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/s004220050383
更新日期:1997-10-01 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::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
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journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/BF00449594
更新日期:1985-01-01 00:00:00
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journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/BF00199055
更新日期:1995-06-01 00:00:00
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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::Motion control of musculoskeletal systems for functional electrical stimulation (FES) is a challenging problem due to the inherent complexity of the systems. These include being highly nonlinear, strongly coupled, time-varying, time-delayed, and redundant. The redundancy in particular makes it difficult to find an inv...
journal_title:Biological cybernetics
pub_type: 杂志文章
doi:10.1007/s00422-008-0258-5
更新日期:2008-12-01 00:00:00