Periaqueductal grey projection to the ventrobasal complex in the cat: An horseradish peroxidase study

P. Barbaresi, F. Conti, T. Manzoni

Research output: Contribution to journalArticle

Abstract

Horseradish peroxidase (HRP) was injected within the thalamic ventrobasal complex of 14 cats. The aim was to ascertain whether the periaqueductal grey matter (PAG) sends fibres to this complex. Retrogradely labelled cells were found within the PAG following HRP delivery either in the nucleus ventralis posterolateralis (VPL) or ventralis posteromedialis (VPM). PAG-VPL projection is only ipsilateral and arises mainly from lateral PAG. PAG-VPM projection is bilateral and originates from latero-ventral regions of the central grey. The hypothesis that PAG might control the activity of ventrobasal nociceptive neurones is proposed.

Original languageEnglish
Pages (from-to)205-209
Number of pages5
JournalNeuroscience Letters
Volume30
Issue number3
DOIs
Publication statusPublished - Jun 30 1982

Keywords

  • horseradish peroxidase
  • periaqueductal grey matter
  • rat
  • thalamic ventrobasal complex

ASJC Scopus subject areas

  • Neuroscience(all)

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