Multisensory fusion and the stochastic structure of postural sway

• Published in: Biological cybernetics Vol. 87; no. 4; pp. 262 - 277
• Main Authors: Kiemel, Tim, Oie, Kelvin S., Jeka, John J.
• Format: Journal Article
• Language: English
• Published: Germany Springer Nature B.V 01.10.2002
• Subjects: Adult; Biomechanics; Central Nervous System - physiology; Control systems; Decay; Feedback - physiology; Humans; Linear Models; Older people; Photic Stimulation; Physical Stimulation; Posture; Posture - physiology; Proprioception - physiology; Sensory perception; Stochastic models; Stochastic Processes; Touch - physiology; Visual Perception - physiology

We analyze the stochastic structure of postural sway and demonstrate that this structure imposes important constraints on models of postural control. Linear stochastic models of various orders were fit to the center-of-mass trajectories of subjects during quiet stance in four sensory conditions: (i)...