Related Experiment Video
Updated: Oct 3, 2026

Experimental Methods to Study Human Postural Control
Published on: September 11, 2019
Effect of sensory inputs alteration and central sensory disinteraction on postural sway and optokinetic reflex
V Grigorova1, I Ivanov, K Stambolieva
1Motor Control Laboratory, Institute of Physiology, Bulgarian Academy of Sciences, Sofia. valgri@bio.bas.bg
Abstract:
We aimed at estimating the effect of central sensory disinteraction on postural sway (PS) and optokinetic reflex (OKR) maintaining concurrently body balance. Healthy humans (N) and patients (P) with multiple sclerosis, and undergone infarct in the middle cerebral artery were examined. They stood on stable platform and foam rubber under three conditions: eyes open; eyes closed; during horizontal central optokinetic stimulation (COKS). On stable platform, a difference between PS of N and P was not found, while on foam rubber, PS of P was significantly greater than PS of N. During COKS on stable platform, PS increased only in P, while on foam rubber it increased in both N and P. OKR gain of N was circa 1 on stable and unstable supports, while that of P was 0.5. We concluded that artificial sensory disinteraction causes strong postural instability, but does not affect OKR.
More Related Videos
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
07:52Evaluating Postural Control and Lower-extremity Muscle Activation in Individuals with Chronic Ankle Instability
Published on: September 18, 2020
Related Concept Videos
Equilibrium and Balance
Major Somatic Sensory Pathways
The Vestibular System
Indirect Motor Pathways
The vestibulospinal tract originates in the vestibular nuclei of the brainstem. The vestibular system detects changes in...
Auditory Perception