Vestibulo-ocular reflex and visual vestibulo-ocular reflex during sinusoidal rotation in children

To clarify the relationship between vestibular and visual (optokinetic) stimuli in normal children, we investigated the vestibulo-ocular reflex (VOR) and visual VOR (VVOR). The subjects were 20 healthy children aged 3-6 years and 24 healthy adults aged 21-29 years. The VOR gains and phase were measu...

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Bibliographic Details
Published inActa oto-laryngologica. Supplement Vol. 528; p. 70
Main Authors Sakaguchi, M, Taguchi, K, Sato, K, Akahira, T, Netsu, K, Katsuno, S, Ishiyama, T
Format Journal Article
LanguageEnglish
Published Norway 1997
Subjects
Adult
Aging - physiology
Child
Child, Preschool
Darkness
Eye Movements - physiology
Female
Head Movements - physiology
Humans
Light
Male
Mental Processes - physiology
Nystagmus, Optokinetic - physiology
Photic Stimulation
Reflex, Vestibulo-Ocular - physiology
Rotation
Vestibule, Labyrinth - physiology
Vision, Ocular - physiology
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Summary:To clarify the relationship between vestibular and visual (optokinetic) stimuli in normal children, we investigated the vestibulo-ocular reflex (VOR) and visual VOR (VVOR). The subjects were 20 healthy children aged 3-6 years and 24 healthy adults aged 21-29 years. The VOR gains and phase were measured under two visual conditions: with eyes open in complete darkness and with eyes open in a lighted optokinetic drum. In both visual conditions, phase did not significantly differ between children and adults. In the dark, children presented a significantly larger gain than that of adults. In the optokinetic drum, however, the gain values of the children were almost the same as in adults. We suggest that the large VOR gain values of children may be due to immaturity of the inhibitory regulation system of the VOR.
ISSN:0365-5237