Kamogashira Teru, Asakura Shinnosuke, Funayama Hideaki, Ito Kenji, Sunaga Noriaki, Shikanai Nao, Itagaki Fumihiko, Kataoka Toshitaka, Shoji Shizuka, Koizumi Megumi, Ishimoto Shinichi
Department of Otolaryngology, JR Tokyo General Hospital, Tokyo 151-8528, Japan.
Department of Otolaryngology and Head and Neck Surgery, Faculty of Medicine, University of Tokyo, Tokyo 113-8655, Japan.
Audiol Res. 2025 Jul 15;15(4):86. doi: 10.3390/audiolres15040086.
: The line bisection task (LBT) is a well-known test in which a horizontal line is presented in front of the subject and the subject is asked to draw a mark vertically bisecting the line. We developed the new LBT using three-dimensionally transformed rectangles to enhance the sense of depth and evaluated the influence of vestibular dysfunction on the deviation. : One hundred participants were recruited from patients referred to the vertigo outpatient clinic. The average deviation in the LBT was the leftward deviation in the figures viewed from the right side and the rightward deviation in the figures viewed from the left side, indicating that the figures were perceived three-dimensionally, with the division point deviating to the far side. : In multivariate analysis of variance (MANOVA) analyses, the significant leftward deviation was observed in the group with vestibular dysfunction in caloric testing, and the significant rightward deviation dependent on increasing age was also observed. In univariate analyses, the significant leftward deviation in the figure viewed from the left side (135 degrees) was observed in the group with vestibular dysfunction in caloric testing, and the significant leftward deviation was also observed in figures viewed from the center, left or right side (0, 15 and 165 degrees) in the group with vestibular dysfunction in vHIT evaluation. : Vestibular dysfunction can alter the deviation in the new LBT, suggesting the potential of the new LBT as an assessment of vestibular dysfunction.
直线二等分任务（LBT）是一项著名的测试，在测试中，一条水平线呈现在受试者面前，要求受试者垂直画一条线将该直线二等分。我们使用三维变换矩形开发了新的LBT以增强深度感，并评估前庭功能障碍对偏差的影响。：从眩晕门诊转诊的患者中招募了100名参与者。LBT中的平均偏差是从右侧观察图形时的向左偏差以及从左侧观察图形时的向右偏差，这表明图形被三维感知，分割点偏向远侧。：在多变量方差分析（MANOVA）分析中，在冷热试验中存在前庭功能障碍的组中观察到显著的向左偏差，并且还观察到随着年龄增长而显著的向右偏差。在单变量分析中，在冷热试验中存在前庭功能障碍的组中，从左侧（135度）观察图形时存在显著的向左偏差，并且在视频头脉冲试验（vHIT）评估中存在前庭功能障碍的组中，从中心、左侧或右侧（0、15和165度）观察图形时也观察到显著的向左偏差。：前庭功能障碍可改变新LBT中的偏差，这表明新LBT作为前庭功能障碍评估方法的潜力。
