The author investigated the subclinical tremor on the extremity muscles in stutterers at rest, without speaking. This tremor occurred in the native EMG record from the musculus abductor digiti quinti during isometric contraction. Because it occurred in a muscle not involved in speaking and moreover at rest, without speaking, the author excludes the possibility that it could be an increase in the amplitude of physiological tremor; she concludes that the cause of this tremor are changes in the function of the structures responsible for motor feedback, especially in the extrapyramidal and cerebellar field.

• MeSH
• Adult MeSH
• Electromyography * MeSH
• Extrapyramidal Tracts physiopathology   MeSH
• Isometric Contraction physiology   MeSH
• Stuttering diagnosis   physiopathology   MeSH
• Muscle, Skeletal physiopathology   MeSH
• Humans MeSH
• Adolescent MeSH
• Cerebellum physiopathology   MeSH
• Tremor diagnosis   physiopathology   MeSH
• Feedback physiology   MeSH
• Check Tag
• Adult MeSH
• Humans MeSH
• Adolescent MeSH
• Male MeSH
• Female MeSH
• Publication type
• Journal Article MeSH
• Research Support, Non-U.S. Gov't MeSH