Model for vestibular adaptation to horizontal rotation
Young, L.R.; Oman, C.M.
Aerospace Medicine 40(10): 1076-1080
1969
ISSN/ISBN: 0001-9402 PMID: 5307272 Document Number: 3227
Short term adaptation effects are seen in subjective sensation of rotation and vestibular nystagmus. The mathematical model for semicircular canal function is improved by the addition of two adaptation terms (approximately one-half minute time constant for sensation and two minute time constant for nystagmus) to the overdamped second order description. Adaptation is represented as a shift of reference level based on the recent history of cupula displacement. This model accounts for the differences in time constants between nystagmus and subjective eupulograms, secondary nystagmus, and decreased sensitivity to prolonged acceleration.
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