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Biophysical Journal 11: 414-428 (1971)
© 1971 the Biophysical Society

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A Superposition Model of the Spontaneous Activity of Cerebellar Purkinje Cells

N. H. Sabah and J. T. Murphy

ABSTRACT

Based on physiological evidence for multiple firing zones in the dendritic arborizations of cerebellar Purkinje cells, a superposition model is proposed for spike triggering in these cells. Spike trains from 10 Purkinje cells were analyzed in terms of independence of interspike intervals and the properties of their variance-time curves. The results of this analysis were found consistent with the hypothesis that the spike train of a cerebellar Purkinje cell is the pooled output of a relatively large number of independent component processes. Simplifying assumptions as to the statistical nature of these processes lead to a very rough estimate of the number of firing zones.






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Copyright © 1971 by the Biophysical Society.