Modulation of striatal projection systems by dopamine

Charles R. Gerfen*, D. James Surmeier

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

868 Scopus citations

Abstract

The basal ganglia are a chain of subcortical nuclei that facilitate action selection. Two striatal projection systems-so-called direct and indirect pathways-form the functional backbone of the basal ganglia circuit. Twenty years ago, investigators proposed that the striatum's ability to use dopamine (DA) rise and fall to control action selection was due to the segregation of D1 and D2 DA receptors in direct-and indirect-pathway spiny projection neurons. Although this hypothesis sparked a debate, the evidence that has accumulated since then clearly supports this model. Recent advances in the means of marking neural circuits with optical or molecular reporters have revealed a clear-cut dichotomy between these two cell types at the molecular, anatomical, and physiological levels. The contrast provided by these studies has provided new insights into how the striatum responds to fluctuations in DA signaling and how diseases that alter this signaling change striatal function.

Original languageEnglish (US)
Pages (from-to)441-466
Number of pages26
JournalAnnual Review of Neuroscience
Volume34
DOIs
StatePublished - Jul 21 2011

Keywords

  • Basal ganglia
  • Motor learning
  • Movement disorders
  • Parkinson's disease
  • Synaptic plasticity

ASJC Scopus subject areas

  • Neuroscience(all)

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