Cross-correlations between discharge patterns of primary muscle spindle endings in active triceps-surae muscles of the cat.
Cross-correlations were computed between simultaneously recorded spike trains from primary spindle endings lying in variably active triceps-surae muscles of decerebrate cats. The discharge patterns of these primary endings were rather frequently correlated, the correlation function usually resembling that for nearly synchronous firing. This feature is most often particularly pronounced in closely neighbouring spindles. After light curarization, cross-correlations are generally diminished, but not always abolished completely, suggesting a still-existing correlating influence of gamma motoneurones. Deep curarization or deefferentation abolishes significant features in the cross-correlograms.
Windhorst
U
U
Physiologisches Institut der Universität Göttingen, Lehrstuhl II, Göttingen G.F.R.