• Simulations of low-frequency v...

Treffer: Simulations of low-frequency vibration pattern at the inner ear for activation of the vestibular system.

Title:
Simulations of low-frequency vibration pattern at the inner ear for activation of the vestibular system.
Authors:
Lim J; Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, South Korea., Kim N; Department of Mechanical Engineering, Sogang University, 35 Baekbeom-ro, Mapo-gu, Seoul 04107, South Korea; Research Institute for Smart Design & Manufacturing Technology, Sogang University, 35 Baekbeom-ro, Mapo-gu, Seoul 04107, South Korea. Electronic address: nkim@sogang.ac.kr.
Source:
Hearing research [Hear Res] 2026 Jan; Vol. 470, pp. 109503. Date of Electronic Publication: 2025 Dec 04.
Publication Type:
Journal Article
Language:
English
Journal Info:
Publisher: Elsevier/North-Holland Biomedical Press Country of Publication: Netherlands NLM ID: 7900445 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1878-5891 (Electronic) Linking ISSN: 03785955 NLM ISO Abbreviation: Hear Res Subsets: MEDLINE
Imprint Name(s):
Original Publication: Amsterdam, Elsevier/North-Holland Biomedical Press.
MeSH Terms:
Computer Simulation* , Ear, Inner*/physiology , Vestibule, Labyrinth*/physiology , Models, Biological* , Vestibular System*/physiology, Humans ; Vibration ; Finite Element Analysis ; Head Movements ; Bone Conduction/physiology ; Algorithms ; Motion Perception ; Rotation ; Transducers
Contributed Indexing:
Keywords: Bone conduction; Finite element model; Genetic algorithm; Optimization; Vestibule
Entry Date(s):
Date Created: 20251212 Date Completed: 20260115 Latest Revision: 20260115
Update Code:
20260119
DOI:
10.1016/j.heares.2025.109503
PMID:
41385849
Database:
MEDLINE

Weitere Informationen

Vestibular stimulation is a promising method for mitigating motion sickness and assessing vestibular function. However, conventional methods such as galvanic, caloric, or bone conduction (BC) stimulation lack the spatial selectivity needed to replicate the precise inputs of natural head movements. In this study, a novel approach is proposed using multiple BC transducers with coordinated magnitude and phase to generate targeted vestibular motions. A validated finite element model of the human head was employed to simulate vestibular responses to stimuli from four transducer locations. A genetic algorithm was then used to optimize the magnitude and phase of each input to produce desired one-dimensional (1D), two-dimensional (2D), and rotational vestibular motions. The results demonstrate that the optimized BC inputs can generate 1D linear, 2D planar, and rotational motions with high directional accuracy. The deviations from the target axes were consistently below the known psychophysical thresholds for motion perception. This computational study confirms the feasibility of using multi-site BC stimulation to achieve precise and configurable vestibular actuation, offering a significant improvement over existing techniques.
(Copyright © 2025. Published by Elsevier B.V.)