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X Demographics
Mendeley readers
Attention Score in Context
| Title |
Vestibular Loss in Older Adults Is Associated with Impaired Spatial Navigation: Data from the Triangle Completion Task
|
|---|---|
| Published in |
Frontiers in Neurology, April 2017
|
| DOI | 10.3389/fneur.2017.00173 |
| Pubmed ID | |
| Authors |
Yanjun Xie, Robin T. Bigelow, Scott F. Frankenthaler, Stephanie A. Studenski, Scott D. Moffat, Yuri Agrawal |
| Abstract |
Vestibular inputs have been shown to play a critical role in spatial navigation. In this study, we sought to evaluate whether vestibular loss due to aging contributes to impaired spatial navigation as measured by the triangle completion task (TCT). We recruited three types of participants: young controls <55 years of age, older controls ≥55 years of age, and older patients from a Neurotology Clinic with evidence of vestibular physiologic impairment but who did not have any known vestibular disorder. We performed the cervical vestibular-evoked myogenic potential to evaluate saccular function and video head impulse testing to quantify horizontal semicircular canal vestibulo-ocular reflex gain. To assess spatial navigation ability, we administered the TCT, in which participants were conveyed along two segments of a pre-drawn triangular path and instructed to complete the final segment independently. We measured the angle (degrees) and distance (centimeters) of deviation from the correct trajectory. We evaluated the influence of vestibular inputs on TCT performance. Forty-eight adults participated in the study (mean age: 62.0 years; 52.1% females), including 9 young controls, 15 older controls, and 24 clinic patients. Clinic patients had the greatest distance of deviation (67.7 cm), followed by older controls (45.4 cm), then young controls (27.8 cm; p < 0.01). Similarly, clinic patients had greater rotational angles (22.1°) compared to older (13.3°) and younger controls (12.4°; p < 0.01). Following multivariate linear regression adjusting for demographic variables, loss of otolith function was associated with an 18.2 cm increase in distance of deviation (95% CI: 15.2-47.4) and a 9.2° increase in rotational angle (95% CI: 3.0-15.5). Abnormal semicircular canal function was associated with a 26.0 cm increase in distance of deviation (95% CI: 0.2-51.8) and a 10.8° increase in rotational angle (95% CI: 3.0-15.5). Participants with both otolith and canal abnormalities had a larger distance error (β = 25.3, 95% CI: 6.2-44.4) and angle of deviation (β = 18.1, 95% CI: 10.1-26.2) than with either condition alone. Vestibular loss in older adults was associated with poorer performance on a dynamic spatial navigation task relative to old and young controls. |
X Demographics
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Germany | 1 | 33% |
| Unknown | 2 | 67% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 3 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 100 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 100 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Master | 14 | 14% |
| Researcher | 13 | 13% |
| Student > Ph. D. Student | 13 | 13% |
| Student > Bachelor | 11 | 11% |
| Student > Doctoral Student | 9 | 9% |
| Other | 14 | 14% |
| Unknown | 26 | 26% |
| Readers by discipline | Count | As % |
|---|---|---|
| Neuroscience | 22 | 22% |
| Medicine and Dentistry | 17 | 17% |
| Psychology | 14 | 14% |
| Nursing and Health Professions | 6 | 6% |
| Engineering | 3 | 3% |
| Other | 7 | 7% |
| Unknown | 31 | 31% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 15 May 2017.
All research outputs
#15,878,456
of 23,588,018 outputs
Outputs from Frontiers in Neurology
#7,064
of 12,549 outputs
Outputs of similar age
#195,134
of 310,716 outputs
Outputs of similar age from Frontiers in Neurology
#104
of 175 outputs
Altmetric has tracked 23,588,018 research outputs across all sources so far. This one is in the 22nd percentile – i.e., 22% of other outputs scored the same or lower than it.
So far Altmetric has tracked 12,549 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 7.5. This one is in the 40th percentile – i.e., 40% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 310,716 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 28th percentile – i.e., 28% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 175 others from the same source and published within six weeks on either side of this one. This one is in the 38th percentile – i.e., 38% of its contemporaries scored the same or lower than it.