Corticobulbar projections to upper and lower facial motoneurons. A study by magnetic transcranial stimulation in man

G. Cruccu, A. Berardelli, M. Inghilleri, M. Manfredi

Research output: Contribution to journalArticlepeer-review

Abstract

To investigate the human corticofacial projections, we recorded the compound motor potentials and single motor unit potentials evoked by magnetic transcranial stimulation, in the frontalis and lower facial muscles of healthy subjects. Potentials secondary to activation of the corticobulbar tract were contralateral in lower and bilateral in upper facial muscles. Even though the latency of responses was longer than would be expected for direct cortico-motoneuronal connections, these cannot be excluded either for lower or upper facial motoneurons.

Original languageEnglish
Pages (from-to)68-73
Number of pages6
JournalNeuroscience Letters
Volume117
Issue number1-2
DOIs
Publication statusPublished - Sep 4 1990

Keywords

  • Corticobulbar projection
  • Facial muscle
  • Magnetic brain stimulation
  • Man
  • Single motor unit

ASJC Scopus subject areas

  • Neuroscience(all)

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