Spatial Navigation after Surgical Resection of an Acoustic Neuroma: Pilot Study

Paquet, Nicole; Kulkarni, Kavita; Fung, Joyce; Watt, D. A. L.

doi:10.2310/7070.2003.40428

Cited by 5 publications

(5 citation statements)

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“…Instead of side-stepping straight towards the target, subjects made curved trajectories, as if they were executing a circle on the floor, always facing the centre of the circle during both rightward and leftward walking (see figure 3). This feature of sideway blind navigation has been noted in a previous study (Paquet et al 2003). In observing subjects executing side-stepping, we could see that at each step they made a slight hip flexion instead of only hip abduction.…”

Section: Distance and Direction Errorssupporting

confidence: 84%

“…Direction error was larger while navigating sideway. For example, body rotation relative to a vertical axis was on average 88 AE 88 during side-stepping towards a target located only 1.25 m to the right or left (Paquet et al 2003). Thus, it appears that perception and control of direction are not as accurate as perception and control of distance during locomotion without vision.…”

Section: Blind Navigationmentioning

confidence: 96%

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Reproducibility of Distance and Direction Errors Associated with Forward, Backward, and Sideway Walking in the Context of Blind Navigation

et al. 2007

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The ability to navigate without vision towards a previously seen target has been extensively studied, but its reliability over time has yet to be established. Our aims were to determine distance and direction errors made during blind navigation across four different directions involving three different gait patterns (stepping forward, stepping sideway, and stepping backward), and to establish the test-retest reproducibility of these errors. Twenty young healthy adults participated in two testing sessions separated by 7 days. They were shown targets located, respectively, 8 m ahead, 8 m behind, and 8 m to their right and left. With vision occluded by opaque goggles, they walked forward (target ahead), backward (target behind), and sideway (right and left targets) until they perceived to be on the target. Subjects were not provided with feedback about their performance. Walked distance, angular deviation, and body rotation were measured. The mean estimated distance error was similar across the four walking directions and ranged from 16 to 80 cm with respect to the 8 m target. In contrast, direction errors were significantly larger during sideway navigation (walking in the frontal plane: leftward, 10 degrees +/- 15 degrees deviation; rightward, 18 degrees +/- 13 degrees) than during forward and backward navigation (walking in the sagittal plane). In general, distance and direction errors were only moderately reproducible between the two sessions [intraclass correlation coefficients (ICCs) ranging from 0.682 to 0.705]. Among the four directions, rightward navigation showed the best reproducibility with ICCs ranging from 0.607 to 0.726, and backward navigation had the worst reliability with ICCs ranging from 0.094 to 0.554. These findings indicate that errors associated with blind navigation across different walking directions and involving different gait patterns are only moderately to poorly reproducible on repeated testing, especially for walking backward. The biomechanical constraints and increased cognitive loading imposed by changing the walking pattern to backward stepping may underlie the poor performance in this direction.

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Section: Distance and Direction Errorssupporting

confidence: 84%

Section: Blind Navigationmentioning

confidence: 96%

Reproducibility of Distance and Direction Errors Associated with Forward, Backward, and Sideway Walking in the Context of Blind Navigation

et al. 2007

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“…Glasauer, Amorim, Vitte, and Berthoz (1994) compared the performance of labyrinthineimpaired participants to matched controls on a triangle completion task and found that the labyrinthineimpaired participants were signiWcantly worse at executing the turns required for the task. Similar Wndings with other tasks have been found in clinical (Borel et al, 2004;Paquet, Kulkarni, Fung, & Watt, 2003;Péruch et al, 1999; but see Worchel, 1952) and animal (Wallace, Hines, Pellis, & Whitshaw, 2002) populations, and this has led many to the conclusion that inertial information is an important component of navigation, especially when vision information is degraded (Glasauer, Amorim, Viaud-Delmon, & Berthoz, 2002;Harris, Jenkin, & Zikovitz, 2000).…”

Section: Introductionsupporting

confidence: 55%

The role of body-based sensory information in the acquisition of enduring spatial representations

Waller

Greenauer

2006

Psychological Research

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Although many previous studies have shown that body-based sensory modalities such as vestibular, kinesthetic, and efferent information are useful for acquiring spatial information about one's immediate environment, relatively little work has examined how these modalities affect the acquisition of long-term spatial memory. Three groups of participants learned locations along a 146 m indoor route, and subsequently pointed to these locations, estimated distances between them, and constructed maps of the environment. One group had access to visual, proprioceptive, and inertial information, another had access to matched visual and matched inertial information, and another had access only to matched visual information. In contrast to previous findings examining transient, online spatial representations, our results showed very few differences among groups in the accuracy of the spatial memories acquired. The only difference was the improved pointing accuracy of participants who had access to proprioceptive information relative to that of participants in the other conditions. Results are discussed in terms of differential sensory contributions to transient and enduring spatial representations.

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“… The triangle completion test (TCT): the TCT ( 74 ) is conducted using right triangles, the sides of which are distinctly marked on the floor. Participants don a blindfold and noise-attenuating headphones and, then, are instructed to visualize the triangle to be walked.…”

Section: Vestibular Perception: Anatomy To Laboratory Testingmentioning

confidence: 99%

“…Persons with peripheral ( 40 , 74 , 172 – 177 ), central ( 178 – 180 ), and age-related ( 181 ) vestibular dysfunction have impaired spatial navigation. Accuracy in spatial navigation is assessed using path integration tasks, during which a person moves along a specified path or towards a previously viewed target ( 102 ).…”

Section: Vestibular Perception: Spatial Navigationmentioning

confidence: 99%

Vestibular perceptual testing from lab to clinic: a review

Grove,

Klatt,

Wagner

et al. 2023

Front. Neurol.

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Not all dizziness presents as vertigo, suggesting other perceptual symptoms for individuals with vestibular disease. These non-specific perceptual complaints of dizziness have led to a recent resurgence in literature examining vestibular perceptual testing with the aim to enhance clinical diagnostics and therapeutics. Recent evidence supports incorporating rehabilitation methods to retrain vestibular perception. This review describes the current field of vestibular perceptual testing from scientific laboratory techniques that may not be clinic friendly to some low-tech options that may be more clinic friendly. Limitations are highlighted suggesting directions for additional research.

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Spatial Navigation after Surgical Resection of an Acoustic Neuroma: Pilot Study

Cited by 5 publications

References 0 publications

Reproducibility of Distance and Direction Errors Associated with Forward, Backward, and Sideway Walking in the Context of Blind Navigation

Reproducibility of Distance and Direction Errors Associated with Forward, Backward, and Sideway Walking in the Context of Blind Navigation

The role of body-based sensory information in the acquisition of enduring spatial representations

Vestibular perceptual testing from lab to clinic: a review

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