The Relationship between Subjective Visual Vertical and Roll Vection under Visual Stimulation
نویسندگان
چکیده
منابع مشابه
Visual effects on the subjective visual vertical and subjective postural head vertical during static roll‐tilt
OBJECTIVES Tilt perception is part of the perception of spatial orientation. It is determined not only by the allocentric gravity axis, but also by a second allocentric axis induced by visual information as well as by the egocentric body (head) axis induced by somatosensory information. The aim of this study was to quantify roll-tilt perception using the subjective visual vertical (SVV) and the...
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Dynamic effects on the subjective visual vertical after roll rotation.
We investigated in normal human subjects how semicircular canal and otolith signals interact in the estimation of the subjective visual vertical after constant velocity or constant acceleration roll tilt. In the constant velocity paradigm, subjects were rotated in darkness at +/-60 degrees/s for five complete cycles before being stopped in one of seven orientations ranging from 0 to +/-90 degre...
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Effects of visual roll-motion on postural sway and the subjective visual vertical (SVV) often is studied using mechanical devices, whereas electronic displays offer cheaper and more flexible alternatives. These devices typically emit and reflect light scattered by the edges of the screen, providing Earth-fixed cues of verticality. These cues may decrease the effects of rotating stimuli, a possi...
متن کاملRoll-dependent modulation of the subjective visual vertical: contributions of head- and trunk-based signals.
Precision and accuracy of the subjective visual vertical (SVV) modulate in the roll plane. At large roll angles, systematic SVV errors are biased toward the subject's body-longitudinal axis and SVV precision is decreased. To explain this, SVV models typically implement a bias signal, or a prior, in a head-fixed reference frame and assume the sensory input to be optimally tuned along the head-lo...
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ژورنال
عنوان ژورنال: Equilibrium Research
سال: 2005
ISSN: 0385-5716,1882-577X
DOI: 10.3757/jser.64.57