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Article
A cognitive intersensory interaction mechanism in human postural control
Human control of upright body posture involves inputs from several senses (visual, vestibular, proprioceptive, somatosensory) and their central interactions. We recently studied visual effects on posture contr...
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Article
Multisensory control of human upright stance
The interaction of different orientation senses contributing to posture control is not well understood. We therefore performed experiments in which we measured the postural responses of normal subjects and ves...
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Article
Pronounced overestimation of support surface tilt during stance
A veridical internal notion of the kinematic state of the foot support is essential for postural control. The means by which this is obtained is still a matter of debate. We therefore measured the conscious pe...
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Article
Human postural responses to motion of real and virtual visual environments under different support base conditions
The role of visual orientation cues for human control of upright stance is still not well understood. We, therefore, investigated stance control during motion of a visual scene as stimulus, varying the stimulu...
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Article
Abnormal resonance behavior of the postural control loop in Parkinson’s disease
Human postural control of upright stance sporadically can show an oscillatory behavior. Based on previous work, we assessed whether an abnormal tendency for such oscillations might contribute to the motor impa...
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Article
Visual object localisation in space
Perceptual updating of the location of visual targets in space after intervening eye, head or trunk movements requires an interaction between several afferent signals (visual, oculomotor efference copy, vesti...
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Chapter
Updating the Location of Visual Objects in Space Following Vestibular Stimulation
When updating the location of a visual object in space while moving around, we have to rely on sensory information from different modalities. Retinal signals provide us with a notion of the object’s position o...
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Chapter
Eye-Head Coordination in Patients with Chronic Loss of Vestibular Function
In healthy subjects sacccadic gaze shifts of more than 20° or so are achieved by moving both the head and the eyes. The coordination between head and eyes during such gaze shifts depends critically on vestibul...
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Article
Eye-head coordination in labyrinthine-defective humans
Eye-head coordination during saccadic gaze shifts normally relies on vestibular information. A vestibulo-saccadic reflex (VSR) is thought to reduce the eye-in-head saccade to account for current head movement...