| Title |
Bimanual motor deficits in older adults predicted by diffusion tensor imaging metrics of corpus callosum subregions
|
|---|---|
| Published in |
Brain Structure and Function, October 2013
|
| DOI | 10.1007/s00429-013-0654-z |
| Pubmed ID | |
| Authors |
L. Serbruyns, J. Gooijers, K. Caeyenberghs, R. L. Meesen, K. Cuypers, H. M. Sisti, A. Leemans, Stephan P. Swinnen |
| Abstract |
Age-related changes in the microstructural organization of the corpus callosum (CC) may explain declines in bimanual motor performance associated with normal aging. We used diffusion tensor imaging in young (n = 33) and older (n = 33) adults to investigate the microstructural organization of seven specific CC subregions (prefrontal, premotor, primary motor, primary sensory, parietal, temporal and occipital). A set of bimanual tasks was used to assess various aspects of bimanual motor functioning: the Purdue Pegboard test, simultaneous and alternating finger tapping, a choice reaction time test and a complex visuomotor tracking task. The older adults showed age-related deficits on all measures of bimanual motor performance. Correlation analyses within the older group showed that white matter fractional anisotropy of the CC occipital region was associated with bimanual fine manipulation skills (Purdue Pegboard test), whereas better performance on the other bimanual tasks was related to higher fractional anisotropy in the more anterior premotor, primary motor and primary sensory CC subregions. Such associations were less prominent in the younger group. Our findings suggest that structural alterations of subregional callosal fibers may account for bimanual motor declines in normal aging. |
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Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United Kingdom | 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 105 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United Kingdom | 1 | <1% |
| United States | 1 | <1% |
| Belgium | 1 | <1% |
| Unknown | 102 | 97% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Researcher | 25 | 24% |
| Student > Master | 14 | 13% |
| Student > Ph. D. Student | 12 | 11% |
| Professor > Associate Professor | 7 | 7% |
| Student > Doctoral Student | 6 | 6% |
| Other | 13 | 12% |
| Unknown | 28 | 27% |
| Readers by discipline | Count | As % |
|---|---|---|
| Neuroscience | 25 | 24% |
| Medicine and Dentistry | 13 | 12% |
| Psychology | 12 | 11% |
| Agricultural and Biological Sciences | 6 | 6% |
| Sports and Recreations | 3 | 3% |
| Other | 11 | 10% |
| Unknown | 35 | 33% |
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 31 March 2014.
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#19,702,729
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Outputs from Brain Structure and Function
#1,236
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Outputs of similar age
#163,074
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Outputs of similar age from Brain Structure and Function
#12
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