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Time of Day Does Not Modulate Improvements in Motor Performance following a Repetitive Ballistic Motor Training Task

Overview of attention for article published in Neural Plasticity, March 2013
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Title
Time of Day Does Not Modulate Improvements in Motor Performance following a Repetitive Ballistic Motor Training Task
Published in
Neural Plasticity, March 2013
DOI 10.1155/2013/396865
Pubmed ID
Authors

Martin V. Sale, Michael C. Ridding, Michael A. Nordstrom

Abstract

Repetitive performance of a task can result in learning. The neural mechanisms underpinning such use-dependent plasticity are influenced by several neuromodulators. Variations in neuromodulator levels may contribute to the variability in performance outcomes following training. Circulating levels of the neuromodulator cortisol change throughout the day. High cortisol levels inhibit neuroplasticity induced with a transcranial magnetic stimulation (TMS) paradigm that has similarities to use-dependent plasticity. The present study investigated whether performance changes following a motor training task are modulated by time of day and/or changes in endogenous cortisol levels. Motor training involving 30 minutes of repeated maximum left thumb abduction was undertaken by twenty-two participants twice, once in the morning (8 AM) and once in the evening (8 PM) on separate occasions. Saliva was assayed for cortisol concentration. Motor performance, quantified by measuring maximum left thumb abduction acceleration, significantly increased by 28% following training. Neuroplastic changes in corticomotor excitability of abductor pollicis brevis, quantified with TMS, increased significantly by 23% following training. Training-related motor performance improvements and neuroplasticity were unaffected by time of day and salivary cortisol concentration. Although similar neural elements and processes contribute to motor learning, training-induced neuroplasticity, and TMS-induced neuroplasticity, our findings suggest that the influence of time of day and cortisol differs for these three interventions.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 48 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United States 1 2%
Serbia 1 2%
Australia 1 2%
Unknown 45 94%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 8 17%
Student > Master 6 13%
Student > Bachelor 5 10%
Student > Doctoral Student 4 8%
Researcher 4 8%
Other 11 23%
Unknown 10 21%
Readers by discipline Count As %
Neuroscience 9 19%
Psychology 7 15%
Agricultural and Biological Sciences 5 10%
Sports and Recreations 5 10%
Nursing and Health Professions 4 8%
Other 4 8%
Unknown 14 29%
Attention Score in Context

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 14 March 2013.
All research outputs
#22,758,309
of 25,373,627 outputs
Outputs from Neural Plasticity
#879
of 1,054 outputs
Outputs of similar age
#184,300
of 209,241 outputs
Outputs of similar age from Neural Plasticity
#11
of 13 outputs
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