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  • 1
    Electronic Resource
    Electronic Resource
    Information about peripheral events conveyed to the cerebellum via the climbing fiber system in the decerebrate cat (1980)
    Springer
    Experimental brain research 38 (1980), S. 363-373 
    Details
    ISSN: 1432-1106
    Keywords: Passive movements ; Cerebellar cortex ; Climbing fiber input ; Purkinje cells
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Discharges of Purkinje cells (PCs) with simple (SS) and complex spikes (CS) in the c1zone of lobule Vc of the anterior lobe of the cerebellar cortex were analyzed in the decerebrate cat during a passive movement of the cat forepaw. The CS of the PC responded differentially and/or proportionally to the position of the extremity, amplitude of the movement, velocity and acceleration. Inphase and outphase responses of the climbing fiber (CF) system to sinusoidal movements could depend on the position of the extremity within the operational range. From these results we deduce that peripheral events can be signalled by the CF system. The possible function of the interaction between the two inputs at the PC level is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00237516
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Spatial distribution of afferent information to the anterior lobe of the cat's cerebellum (1981)
    Springer
    Experimental brain research 42 (1981), S. 249-259 
    Details
    ISSN: 1432-1106
    Keywords: Passive movement ; Cerebellar cortex ; Climbing fiber and mossy fiber system ; Granule cells ; Purkinje cells
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary In the decerebrate cat discharges of Purkinje cells with simple and complex spikes as well as granule cell discharges in the c1-zone of lobules Va, b and c of the cerebellar anterior lobe were analyzed during a passive movement of the cat's forepaw. Penetrations were made 50 μm apart along the mediolateral and parasagittal directions, the depth never exceeding 500 μm. The response of the Purkinje cells to the climbing fiber input was surprisingly constant, while simple spike responses of the same cells showed a great variability to the same input. The variability between granule cell discharges recorded at a 50 μm distance from each other was similar to that of the simple spikes of the Purkinje cell. It is assumed that because of a patchy distribution of excited granule cells, two neighbouring Purkinje cells may receive a different information via their parallel fiber inputs. This difference is considered to be responsible for the great variability of their responses to mossy fiber inputs.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00237492
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Cerebellar feedback signals of a passive hand movement in the awake monkey (1984)
    Springer
    Pflügers Archiv 402 (1984), S. 292-299 
    Details
    ISSN: 1432-2013
    Keywords: Cerebellum ; Climbing fibre ; Purkinje cell ; Awake monkey ; Passive movement ; Sensory feedback
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract From three intact and awake monkeys, 149 Purkinje cells and 44 presumed mossy fibres were recorded in the intermediate part of the cerebellar anterior lobe, and this activity was analyzed with regard to different parameters of a passive hand movement. The tonic discharge rate of the simple spikes (SS) varied according to different joint positions only in a single Purkinje cell, whereas such a position relation was found in nine out of 44 presumed mossy fibres. A phasic increase of the complex spike (CS) discharge rate of Purkinje cells in response to passive wrist movements usually occurred within 100 ms after movement onset. However, in some units a phase of increased CS rate was observed which lasted for the whole movement duration. The amount of this phasic increase in the CS rate depended on the acceleration of movement, but the SS response to movements of different velocity remained unchanged.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00585512
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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