Audio-motor reflexes in lower lip motor units having different recruitment thresholds

Michael D. McClean, Shimon Sapir

Research output: Contribution to journalArticlepeer-review


Subjects maintained constant firing rates in single motor units of the orbicularis oris inferior muscle while auditory clicks were delivered. Audio-motor reflex magnitudes were extracted from poststimulus-time histograms on each motor unit, and these magnitudes were analyzed in relation to motor unit recruitment threshold. Data on 103 motor units in 3 subjects indicated that the magnitudes of the low threshold units differed from the moderate and high threshold units.

Original languageEnglish
Pages (from-to)293-296
Number of pages4
JournalBrain Research
Issue number2
StatePublished - 4 Apr 1983
Externally publishedYes

Bibliographical note

Funding Information:
This research was supported by the National Institute of Neurological and Communicative Disorders and Stroke (NS 14048, NS 00291). A preliminary report of the work was presented at a meeting of the Acoustical Society of America in Chicago (1982).


  • audio-motor reflexes
  • human
  • lip motor units

ASJC Scopus subject areas

  • General Neuroscience
  • Molecular Biology
  • Clinical Neurology
  • Developmental Biology


Dive into the research topics of 'Audio-motor reflexes in lower lip motor units having different recruitment thresholds'. Together they form a unique fingerprint.

Cite this