Dynamic and static subjective visual vertical with aging

Subjective visual vertical test in patients with chronic dizziness without abnormal findings in routine vestibular function tests

“…The three cases showing abnormal tilts of SVV were elderly persons and DWMH was observed in their brain MRI. It is known that vestibular function gradually deteriorates with aging [10]; however, the tilts of static SVV in elderly individuals were not different from those observed in younger individuals [11]. In the present study, to prevent artefactual measurements of SVV, ocular torsion was further measured and the three cases showed abnormal tilts of ocular torsion as well.…”

Perceptual-Postural Correlation of Visual Dependence in Healthy Adults Across Age Groups

“…This result of correlation was not surprising since posture can be influenced by inaccurate orientation [15]. Perceptual orientation is based on the integration of visual, vestibular and proprioceptive sensory systems and postural control requires a complex interaction of the majority of them had relatively low levels of perceptual visual dependence when compared to the subjects of previous studies [2,3]. Visually dependent individuals such as patients with vestibular deficits who had greater values of SVV tilt had abnormally large postural responses to a visual stimulation even though they were standing with both legs on a firm surface [16,20].…”

“…In Kobayashi et al's study, linear regression of age and SVV tilt was analyzed from 21 to 63 years [3], it was unclear, however, whether values of SVV tilt in older adults over 65 continue increasing with age. Overall, perceptual and postural visual dependence were commonly discussed in separate articles and only focused on certain age groups.…”

“…of subjective visual vertical (SVV) induced by visual stimulation [2,3]. Increased visual dependence with age was also observed at the postural level, that older adults had significantly more postural sway in response to optic flow compared to younger adults and showed continued center of pressure oscillation even following the visual disturbance [4][5][6].…”

Contribution of Visual Input to the Subjective Visual Vertical During Prolonged Lateral Tilt Position

“…All subjects gave their informed consent to participate in the study according to the guidelines of the ethics committee of Keio University Hospital. SVV was measured as a psycho physiological variable for perceived verticality in a static condition, as in our previous reports [6,7].…”