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X Demographics
Mendeley readers
Attention Score in Context
| Title |
Neural Correlates of Age-Related Changes in Precise Grip Force Regulation: A Combined EEG-fNIRS Study
|
|---|---|
| Published in |
Frontiers in Aging Neuroscience, December 2020
|
| DOI | 10.3389/fnagi.2020.594810 |
| Pubmed ID | |
| Authors |
Alisa Berger, Fabian Steinberg, Fabian Thomas, Michael Doppelmayr |
| Abstract |
Motor control is associated with suppression of oscillatory activity in alpha (8-12 Hz) and beta (12-30 Hz) ranges and elevation of oxygenated hemoglobin levels in motor-cortical areas. Aging leads to changes in oscillatory and hemodynamic brain activity and impairments in motor control. However, the relationship between age-related changes in motor control and brain activity is not yet fully understood. Therefore, this study aimed to investigate age-related and task-complexity-related changes in grip force control and the underlying oscillatory and hemodynamic activity. Sixteen younger [age (mean ± SD) = 25.4 ± 1.9, 20-30 years] and 16 older (age = 56.7 ± 4.7, 50-70 years) healthy men were asked to use a power grip to perform six trials each of easy and complex force tracking tasks (FTTs) with their right dominant hand in a randomized within-subject design. Grip force control was assessed using a sensor-based device. Brain activity in premotor and primary motor areas of both hemispheres was assessed by electroencephalography (EEG) and functional near-infrared spectroscopy (fNIRS). Older adults showed significantly higher inaccuracies and higher hemodynamic activity in both FTTs than did young adults. Correlations between grip force control owing to task complexity and beta activity were different in the contralateral premotor cortex (PMC) between younger and older adults. Collectively, these findings suggest that aging leads to impairment of grip force control and an increase in hemodynamic activity independent of task complexity. EEG beta oscillations may represent a task-specific neurophysiological marker for age-related decline in complex grip force control and its underlying compensation strategies. Further EEG-fNIRS studies are necessary to determine neurophysiological markers of dysfunctions underlying age-related motor disabilities for the improvement of individual diagnosis and therapeutic approaches. |
X Demographics
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 1 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 1 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 35 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 35 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Master | 7 | 20% |
| Student > Ph. D. Student | 6 | 17% |
| Student > Bachelor | 4 | 11% |
| Researcher | 2 | 6% |
| Other | 1 | 3% |
| Other | 3 | 9% |
| Unknown | 12 | 34% |
| Readers by discipline | Count | As % |
|---|---|---|
| Neuroscience | 8 | 23% |
| Sports and Recreations | 5 | 14% |
| Engineering | 4 | 11% |
| Nursing and Health Professions | 2 | 6% |
| Computer Science | 1 | 3% |
| Other | 0 | 0% |
| Unknown | 15 | 43% |
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 29 December 2020.
All research outputs
#18,778,496
of 23,270,775 outputs
Outputs from Frontiers in Aging Neuroscience
#4,140
of 4,929 outputs
Outputs of similar age
#378,850
of 508,412 outputs
Outputs of similar age from Frontiers in Aging Neuroscience
#149
of 162 outputs
Altmetric has tracked 23,270,775 research outputs across all sources so far. This one is in the 11th percentile – i.e., 11% of other outputs scored the same or lower than it.
So far Altmetric has tracked 4,929 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 13.2. This one is in the 10th percentile – i.e., 10% of its peers scored the same or lower than it.
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We're also able to compare this research output to 162 others from the same source and published within six weeks on either side of this one. This one is in the 5th percentile – i.e., 5% of its contemporaries scored the same or lower than it.