Oral kinesthetic deficit in adults who stutter: A target-accuracy study

Torrey M.J. Loucks, Luc F. De Nil

Research output: Contribution to journalArticlepeer-review


The current study was based on the hypothesis that chronic developmental stuttering in adults involves a deficiency in oral kinesthesia. The authors used a target-accuracy task to compare oral kinesthesia in adults who stutter (n = 17) and in normal speakers (n = 17). During the task, participants were instructed to make accurate jaw-opening movements in visual and nonvisual feedback conditions. The authors further contrasted oral movement control in a normal response time condition with that in a reaction time condition. Overall, the adults who stutter consistently made significantly less accurate and more variable movements than the control participants in the nonvisual condition, but particularly in the reaction time condition. In general, the present findings suggest that chronic developmental stuttering involves an oral kinesthetic deficiency, although without direct measures of somatosensory function, one cannot exclude a motor deficit interpretation.

Original languageEnglish (US)
Pages (from-to)238-247
Number of pages10
JournalJournal of Motor Behavior
Issue number3
StatePublished - May 2006


  • Jaw
  • Kinesthesia
  • Sensorimotor
  • Speech
  • Stuttering

ASJC Scopus subject areas

  • Biophysics
  • Orthopedics and Sports Medicine
  • Experimental and Cognitive Psychology
  • Cognitive Neuroscience


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