Dynamic Properties of Feedback Control of Human Posture in Subjects with Vestibular Neuritis
Författare
Summary, in English
Postural control was studied in 22 subjects with vestibular neruitis within 14 days after the onset of symptoms. Dynamic feed back control of posture were evaluated by analyzing the postural responses to vibration toward calf muscles applied according to a PRBS schedule. Properties of the dynamic control was normalized as swiftness, stiffness and damping of the responses. There was no prominent group differences between the 22 subjects with vestibular neuritis and 17 normal subjects. However, when studying the change in parameters evoked by presence or absence of visual information it was found that the abundant changes of control parameters, especially in stiffness, met in normal subjects had declined in subjects with vestibular neuritis. The present finding suggests that although subjects after an acute vestibular lesion may achieve a sufficient postural control by utilizing information from other somatosensory receptors, this is concomitant with changes of the feed back control.
Avdelning/ar
Publiceringsår
1993
Språk
Engelska
Sidor
47-48
Publikation/Tidskrift/Serie
Acta Oto-Laryngologica
Volym
113
Issue
S503
Dokumenttyp
Artikel i tidskrift
Förlag
Taylor & Francis
Ämne
- Otorhinolaryngology
- Control Engineering
Nyckelord
- Adult
- Aged
- Feedback
- Female
- Functional Laterality
- Humans
- Male
- Meniere Disease
- Middle Aged
- Neuritis
- Postural Balance
- Posture
- Vestibular Nerve
- Vestibulocochlear Nerve Diseases
- Weight-Bearing
- Journal Article
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 1651-2251