Related Experiment Video
Updated: Aug 8, 2026

Three Dimensional Vestibular Ocular Reflex Testing Using a Six Degrees of Freedom Motion Platform
Published on: May 23, 2013
Nystagmus and REM-density during sleep in patients with various brain lesions
Abstract:
The subjects of this study were 25 patients. Sixteen cases with nystagmus referable to brain stem lesion were divided into two groups; one group was 7 vertical nystagmus (vertical group) and the other group was 9 horizontal nystagmus (horizontal group). Other 9 cases consisted of congenital group (4 cases), cerebellar group (3 cases) and labyrinthine group (2 cases). Normal controls were 8 male volunteers who had no history of particular psychiatric and somatic illness. The results were as follows: 1) Nystagmus observed during wakefulness in all nystagmus groups disappeared during all stages of sleep. 2) The vertical component of nystagmus in the vertical group showed significantly enhanced REM-density compared with that of normal subjects. 3) Both horizontal and vertical REM-densities of the horizontal and labyrinthine group were almost as high as those of normal subjects. 4) Both REM-densities of the congenital group were significantly lower than those of normal subjects. 5) The horizontal REM-density of the cerebellar group was significantly higher than that of normal subjects.
More Related Videos
08:20Measuring Neural Mechanisms Underlying Sleep-Dependent Memory Consolidation During Naps in Early Childhood
Published on: October 2, 2019
07:24Using Eye-tracking to Assess the Relative Importance of Visual and Vestibular Input to Subcortical Motion Processing in the Roll Plane
Published on: August 22, 2025
Related Concept Videos
Neural Regulation
Sleep-Wake Cycles
NREM Sleep
NREM sleep comprises four progressive stages that seamlessly merge:
Stages of Sleep
Before sleep begins, in wakefulness, the brain exhibits primarily beta waves, which are high in frequency and low in amplitude, indicating alertness...
REM Sleep Behavior Disorder
RBD is significantly associated with...