Geniculo-cortical afferents form synaptic contacts with vasoactive intestinal polypeptide (VIP) immunoreactive neurons of the rat visual cortex

F. Hajós, J. F. Staiger, K. Halasy, T. F. Freund, K. Zilles

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The lateral geniculate nucleus of the rat was injected with the anterograde tracer Phaseolus vulgaris leucoagglutinin (PHA-L) to see if geniculo-cortical axons terminate on vasoactive intestinal polypeptide immunoreactive (VIP-IR) neurons of the primary visual cortex. PHA-L-labelled boutons attached to VIP-IR perikarya and dendrites were identified as presynaptic parts of asymmetrical synapses. This geniculo-cortical projection to VIP-LR cells in the visual cortex and comparable findings in the somatosensory cortex suggest that sensory input from specific thalamic nuclei may influence local circuit inhibition and the metabolic state within the cortical domain via VIP-IR neurons.

Original languageEnglish
Pages (from-to)179-182
Number of pages4
JournalNeuroscience Letters
Volume228
Issue number3
DOIs
Publication statusPublished - Jun 13 1997

Keywords

  • Rat
  • Synapse
  • Thalamo-cortical system
  • Vasoactive intestinal polypeptide
  • Visual cortex

ASJC Scopus subject areas

  • Neuroscience(all)

Fingerprint Dive into the research topics of 'Geniculo-cortical afferents form synaptic contacts with vasoactive intestinal polypeptide (VIP) immunoreactive neurons of the rat visual cortex'. Together they form a unique fingerprint.

  • Cite this