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  • 1975-1979  (3)
  • 1965-1969
  • 1979  (3)
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  • 1975-1979  (3)
  • 1965-1969
Year
Keywords
  • 1
    Electronic Resource
    Electronic Resource
    The structure of trisodium hydrogensilicate dihydrate (1979)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 35 (1979), S. 3024-3027 
    Details
    ISSN: 1600-5740
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0567740879011225
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    A mathematical model of the optokinetic reflex (1979)
    Springer
    Biological cybernetics 34 (1979), S. 215-225 
    Details
    ISSN: 1432-0770
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Computer Science , Physics
    Notes: Abstract The role of the optokinetic reflex (OKR) is that of cooperating with the vestibulo-ocular reflex (VOR) in the task of image stabilization on the retina during head rotations in a stationary visual surround. Since the dynamics of VOR was already well established, it has been possible to make a broad estimation of what the dynamics of OKR should be in order to obtain the performances observed in normal subjects. A mathematical model of OKR has been presented, and the experimental results obtained by Raphan et al. (1977) in the monkey and by Collins et al. (1970) in man were used to validate the model and to obtain a precise estimation of its parameters.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00337428
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Otolithic-acoustic interaction in the control of eye movement (1979)
    Springer
    Experimental brain research 36 (1979), S. 509-522 
    Details
    ISSN: 1432-1106
    Keywords: Acoustic ; Vestibular ; Otoliths ; Eye movements ; Linear acceleration
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary In order to examine otolithic contribution to eye movements ten subjects were asked to track either a moving acoustic target or a stationary target during subect linear motion on a cart. The relative displacement between the subject and the target was the same in the two situations. Recordings of eye movements during subject lateral acceleration in the dark without any task, or with the task of tracking an imagined stationary target were made as a control. The frequencies ranged between 0.15 and 0.3 Hz and peak acceleration between 0.55 and 1.2 m/s2. No lateral eye movements (L-nystagmus) were recorded in the dark. Only saccadic eye movements were recorded during the tracking of a moving acoustic target. Slow eye movements interspersed by saccades were observed when the moving subject tracked an imagined or an acoustic stationary target. Contribution of the slow phase to tracking was more important in the presence of an acoustic target than in the presence of imagined target. The results are interpreted in terms of an otolithic contribution to the central reconstruction of the acoustic target velocity, or in terms of an adaptive control of the otolithic-ocular reflex gain. A conceptual model accounting for these interpretations is proposed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00238519
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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