Expression of cupular dynamics while the macaque sleeps.
(1) The effect of brief periods of sleep on neural processing in the vestibulo-ocular reflex was studied in Macaca speciosa. (2) When sleep interrupted nystagmus during a modified Bárány spinning test, the time constant of mystagmus remained unchanged. (3) This finding shows that during light sleep the neural circuitry which generates a long nystagmus time constant from a short cupular time constant continues to function, even though nystagmus ceases.
D000818:Animals; D002540:Cerebral Cortex / Q000502:physiology; D004569:Electroencephalography; D005133:Eye Movements; D000882:Haplorhini; D008251:Macaca; D012018:Reflex / Q000502:physiology; D012894:Sleep Stages / Q000502:physiology*; D014722:Vestibule, Labyrinth / Q000502:physiology*; D014851:Wakefulness / Q000502:physiology