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  • 1990-1994  (3)
  • 1
    Electronic Resource
    Electronic Resource
    A general model of stochastic neural processing (1990)
    Springer
    Biological cybernetics 63 (1990), S. 299-306 
    Details
    ISSN: 1432-0770
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Computer Science , Physics
    Notes: Abstract A model of neural processing is proposed which is able to incorporate a great deal of neurophysiological detail, including effects associated with the mechanics of postsynaptic summation and cell surface geometry and is capable of hardware realisation as a ‘probabilistic random access memory’ (pRAM). The model is an extension of earlier work by the authors, which by operating at much shorter time scales (of the order of the lifetime of a quantum of neurotransmitter in the synaptic cleft) allows a greater amount of information to be retrieved from the simulated spike train. The mathematical framework for the model appears to be that of an extended Markov process (involving the firing histories of the N neurons); simulation work has yielded results in excellent agreement with theoretical predictions. The extended neural model is expected to be particularly applicable in situations where timing constraints are of special importance (such as the auditory cortex) or where firing thresholds are high, as in the case for the granule and pyramidal cells of the hippocampus.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00203453
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Accessory olfactory learning (1991)
    Springer
    Biological cybernetics 64 (1991), S. 301-305 
    Details
    ISSN: 1432-0770
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Computer Science , Physics
    Notes: Abstract Learning in the accessory olfactory bulb is modelled mathematically by means of a set of coupled oscillator equations to describe the ongoing activity. The modification of this activity by experience is shown to lead to a change of the transfer function of the AOB as an input-output device. This leads both to a test of the model and a means of discovering how the later stages of the brain may use the AOB output. Our discussion is limited to a specific form of learning in the mouse, but may have more general applicability.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00199593
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    On theories of everything (1993)
    Springer
    Foundations of physics 23 (1993), S. 239-243 
    Details
    ISSN: 1572-9516
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract It is shown how theories of everything contain the seeds of their own destruction, and an alternative scenario is devised for the universe in which there is no beginning and an infinite regress of theories.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01883627
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    Paper (German National Licenses)
    Fulltext
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