Local dendritic Ca2+ signaling induces cerebellar long-term depression

Jens Eilers, Hajime Takechi, Elizabeth A. Finch, George J. Augustine, Arthur Konnerth

Research output: Contribution to journalArticle

44 Citations (Scopus)

Abstract

The coordinated activity of large numbers of adjacent parallel fiber synapses elevate calcium concentration locally in small regions of Purkinje cell dendrites. Such activity has also been reported to produce long-term depression of parallel fiber synaptic transmission. We have examined the relationship between these two events by combining patch clamp measurements of parallel fiber synaptic transmission with confocal microscopic imaging of the local calcium signals. We find that patterns of parallel fiber activity capable of evoking long-term depression invariably cause increases in Purkinje cell calcium concentration that are very spatially restricted. These results suggest that one function of the local dendritic calcium signals is to induce long-term depression of parallel fiber synapses.

Original languageEnglish
Pages (from-to)159-168
Number of pages10
JournalLearning and Memory
Volume4
Issue number1
DOIs
Publication statusPublished - 01-01-1997
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Neuropsychology and Physiological Psychology
  • Cognitive Neuroscience
  • Cellular and Molecular Neuroscience

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