Muscle spindle afferent input to motoneurons in human masseter


Scutter S. D., Türker K. S.

Journal of Neurophysiology, vol.82, no.1, pp.505-507, 1999 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 82 Issue: 1
  • Publication Date: 1999
  • Doi Number: 10.1152/jn.1999.82.1.505
  • Journal Name: Journal of Neurophysiology
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.505-507
  • Istanbul Gelisim University Affiliated: No

Abstract

The H-reflex response in large and small single motor units in human deep anterior masseter was studied to investigate the distribution of muscle spindle afferents onto masseter motoneurons. We found that only the larger units displayed H-reflex responses. This indicates preferential distribution of muscle spindle input onto large motoneurons or a skewed distribution of tonic presynaptic inhibitory mechanisms.