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  • Title: Maturation of the fast component of vestibular nystagmus during childhood and young adulthood.
    Author: Fuster MM, De Traversay J, Ornitz EM.
    Journal: Acta Otolaryngol; 1994 May; 114(3):239-44. PubMed ID: 8073857.
    Abstract:
    Primary nystagmus was evoked by constant angular acceleration at near-threshold levels (0.2, 0.4, and 0.6 degree/s2) in 34 normal human subjects (25 children aged 2-11 years and 9 young adults aged 17-21 years). Acceleration was carried out in complete darkness, and with subjects' eyes open. Analysis of response latencies showed that all subjects responded to acceleration magnitude as low as 0.2 degrees/s2. A decrease in response latency was associated with an increase in acceleration magnitude, and there was no significant effect of age on response latency or its relationship to acceleration. However, a relationship was found between age and the percentage of trials showing the presence of a set of three successive beats during acceleration: a significant increase in the frequency of such trials occurred with increasing age. The relationship of these findings to brainstem vestibular modulatory mechanisms is discussed.
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