抄録
Transient deviations of closed eyes during head turning were compared with those during head tilting, horizontal linear acceleration of the body and trunk rotation with the head fixed. During head tilting, no deviations occurred in 52.5%, but small deviations (11.1°±4.1°) could be seen in 30% which appeared to be different from those seen during head rotation. Horizontal linear acceleration did not show any deviations in 75%, and trunk rotation with head fixed could not elicit them in 54.2%.
These results indicate that these ocular deviations with eyes closed during head turning are not elicited by otolith input and/or only by cervical torsion, but by the sensation of the direction of head rotation from specific cervical proprioceptors, which are considered to be most sensitive in head rotation.
