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Motor imagery modulation of body sway is task-dependent and relies on imagery ability

Overview of attention for article published in Frontiers in Human Neuroscience, May 2014
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Title
Motor imagery modulation of body sway is task-dependent and relies on imagery ability
Published in
Frontiers in Human Neuroscience, May 2014
DOI 10.3389/fnhum.2014.00290
Pubmed ID
Authors

Thiago Lemos, Nélio S. Souza, Carlos H. R. Horsczaruk, Anaelli A. Nogueira-Campos, Laura A. S. de Oliveira, Claudia D. Vargas, Erika C. Rodrigues

Abstract

In this study we investigate to what extent the effects of motor imagery on postural sway are constrained by movement features and the subject's imagery ability. Twenty-three subjects were asked to imagine three movements using the kinesthetic modality: rising on tiptoes, whole-body forward reaching, and whole-body lateral reaching. After each task, subjects reported the level of imagery vividness and were subsequently grouped into a HIGH group (scores ≥3, "moderately intense" imagery) or a LOW group (scores ≤2, "mildly intense" imagery). An eyes closed trial was used as a control task. Center of gravity (COG) coordinates were collected, along with surface EMG of the deltoid (medial and anterior portion) and lateral gastrocnemius muscles. COG variability was quantified as the amount of fluctuations in position and velocity in the forward-backward and lateral directions. Changes in COG variability during motor imagery were observed only for the HIGH group. COG variability in the forward-backward direction was increased during the rising on tiptoes imagery, compared with the control task (p = 0.01) and the lateral reaching imagery (p = 0.02). Conversely, COG variability in the lateral direction was higher in rising on tiptoes and lateral reaching imagery than during the control task (p < 0.01); in addition, COG variability was higher during the lateral reaching imagery than in the forward reaching imagery (p = 0.02). EMG analysis revealed no effects of group (p > 0.08) or task (p > 0.46) for any of the tested muscles. In summary, motor imagery influences body sway dynamics in a task-dependent manner, and relies on the subject' imagery ability.

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The data shown below were collected from the profiles of 2 X users who shared this research output. Click here to find out more about how the information was compiled.
Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 53 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Spain 1 2%
Unknown 52 98%

Demographic breakdown

Readers by professional status Count As %
Researcher 10 19%
Professor 6 11%
Student > Bachelor 6 11%
Student > Ph. D. Student 5 9%
Student > Postgraduate 5 9%
Other 10 19%
Unknown 11 21%
Readers by discipline Count As %
Medicine and Dentistry 10 19%
Sports and Recreations 6 11%
Psychology 6 11%
Agricultural and Biological Sciences 4 8%
Nursing and Health Professions 3 6%
Other 10 19%
Unknown 14 26%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 2. 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 21 May 2014.
All research outputs
#14,779,591
of 22,753,345 outputs
Outputs from Frontiers in Human Neuroscience
#4,907
of 7,138 outputs
Outputs of similar age
#128,009
of 227,617 outputs
Outputs of similar age from Frontiers in Human Neuroscience
#181
of 231 outputs
Altmetric has tracked 22,753,345 research outputs across all sources so far. This one is in the 32nd percentile – i.e., 32% of other outputs scored the same or lower than it.
So far Altmetric has tracked 7,138 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 14.5. This one is in the 27th percentile – i.e., 27% 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 227,617 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 41st percentile – i.e., 41% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 231 others from the same source and published within six weeks on either side of this one. This one is in the 20th percentile – i.e., 20% of its contemporaries scored the same or lower than it.