Balance of emulated MDOF human postural systems

Lin, Chong; Hsiao, Sheng-Lung; Chen, Ching-Kun

doi:10.1016/j.ijengsci.2010.04.001

Cited by 4 publications

(2 citation statements)

References 14 publications

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“…Several studies have proposed control strategies to reduce the spatial illusion due to the vestibular system. Li et al [LLC08] and Lin et al [LHC10] maintained postural balance by computing control torques to compensate the destabilizing accelerations caused by the difference between the realistic and estimated gravity. Instead of compensating the instabilities caused by the estimated gravity, our motion sickness simulation employs the deviations resulting from the spatial illusions to generate visually evident pose variations.…”

Section: Related Workmentioning

confidence: 99%

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Motion Sickness Simulation Based on Sensorimotor Control

Lin

2018

Computer Graphics Forum

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Sensorimotor control is an essential mechanism for human motions, from involuntary reflex actions to intentional motor skill learning, such as walking, jumping, and swimming. Humans perform various motions according to different task goals and physiological sensory perception; however, most existing computational approaches for motion simulation and generation rarely consider the effects of human perception. The assumption of perfect perception (i.e., no sensory errors) of existing approaches restricts the generated motion types and makes dynamical reactions less realistic. We propose a general framework for sensorimotor control, integrating a balance controller and a vestibular model, to generate perception‐aware motions. By exploiting simulated perception, more natural responses that are closer to human reactions can be generated. For example, motion sickness caused by the impairments in the function of the vestibular system induces postural instability and body sway. Our approach generates physically correct motions and reasonable reactions to external stimuli since the spatial orientation estimation by the vestibular system is essential to preserve balance. We evaluate our framework by demonstrating standing balance on a rotational platform with different angular speeds and duration. The generated motions show that either faster angular speeds or longer rotational duration cause more severe motion sickness. Our results demonstrate that sensorimotor control, integrating human perception and physically‐based control, offers considerable potential for providing more human‐like behaviors, especially for perceptual illusions of human beings, including visual, proprioceptive, and tactile sensations.

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Section: Related Workmentioning

confidence: 99%

“…Our purpose is to simulate motion sickness according to the spatial illusions made by the vestibular model. In contrast, the previous studies usually utilize a vestibular model to either enhance the orientation estimations [Tah09, MSF09, Pet09] or compensate the disturbance caused by the estimated gravity [LLC08, LHC10].…”

Section: System Overviewmentioning

confidence: 99%