Spatial performance of unilateral vestibular defective patients in nonvisual versus visual navigation.
Spatial performance of unilateral vestibular defective patients in nonvisual versus visual navigation.
复制标题
单侧前庭缺陷患者在非视觉与视觉导航中的空间表现。
DOI：
--
复制
发表时间：
1999
影响因子：
2.3
通讯作者：
M. Lacour
中科院分区：
文献类型：
--
作者：
P. Péruch;L. Borel;F. Gaunet;G. Thinus;J. Magnan;M. Lacour
本研究旨在探讨单侧前庭神经切断术对人类执行导航任务能力的影响。这些任务提供了自我运动反馈的方式，无论是运动活动（非视觉导航或“运动任务”）或视觉运动线索（视觉模拟导航或“视觉任务”）。探索后的环境中，其中4个位置被标记为不同的对象，受试者试图导航到这些位置，通过复制相同的路径，在探索过程中遵循的，通过扭转路线，或通过空间推断（捷径）。前庭功能缺损患者在手术治疗前1天和单侧前庭神经损伤后恢复期间（1周、1个月和3个月后）进行测试。他们的表现进行了评估，通过测量转向误差和距离误差在两个导航任务，并进行了比较，控制受试者在类似的时间间隔测试4次。手术前患者在运动任务中再现先前探索的路线的转弯错误低于对照组，表明存在代偿过程。在急性期（1周）后，单侧前庭病变，转向错误的患者比对照组的最高水平的心理表征（空间推理或逆转路线），在作出准确的旋转损伤消失后1个月前庭病变在两个导航任务。这些结果表明，前庭线索的作用，在与其他感官形式的相互作用，在制定一个准确的内部表示的环境。此外，他们认为，前庭信息的单侧抑制会在高水平的信息处理中引起短暂的空间记忆紊乱。
The purpose of this study was to investigate the effects of unilateral vestibular neurotomy on humans ability to perform navigation tasks. These tasks provided self-motion feedback by way of either locomotor activity only (nonvisual navigation or "locomotor task") or visual motion cues only (visually simulated navigation or "visual task"). After exploration of an environment in which 4 locations were marked by different objects, subjects attempted to navigate to those locations either by reproducing the same paths as those followed during exploration, by reversing routes, or by making spatial inferences (shortcuts). Vestibular defective patients were tested one day before surgical treatment and during the recovery time course following unilateral vestibular nerve lesion (1 week, 1 month, and 3 month later). Their performance was assessed by measuring turn error and distance error in both navigation tasks and was compared to that of control subjects tested 4 times at similar time intervals. Turn error in the reproduction of previously explored routes in the locomotor task was lower in patients before surgery than in controls, suggesting the existence of compensatory processes. In the acute stage (1 week) after unilateral vestibular lesion, turn error was greater in patients than in controls for the highest level of mental representation (spatial inferences or reversing routes); impairment at making accurate rotations had disappeared by 1 month after vestibular lesion in both navigation tasks. These results point to the role of vestibular cues, in interaction with other sensory modalities, in the elaboration of an accurate internal representation of the environment. In addition, they suggest that unilateral suppression of vestibular information would induce transitory spatial memory disorganization at a high level of information processing.
DOI：
10.1037/0096-1523.21.3.480
发表时间：
1995-06-01
影响因子：
2.1
作者：
RIESER, JJ;PICK, HL;GARING, AE
通讯作者：
GARING, AE
DOI：
10.1037/0096-1523.14.4.646
发表时间：
1988-11-01
影响因子：
2.1
作者：
WARREN, WH;MORRIS, MW;KALISH, M
通讯作者：
KALISH, M