Biology – Quantitative Biology – Neurons and Cognition
Scientific paper
2008-02-13
Experimental Brain Research 169, 1 (2006) 130-4
Biology
Quantitative Biology
Neurons and Cognition
Scientific paper
10.1007/s00221-005-0124-9
We investigated the effect of performing a mental arithmetic task with two levels of difficulty on the regulation of centre of foot pressure (COP) displacements during bipedal quiet standing in young healthy individuals. There was also a control condition in which no concurrent task was required. A space-time-domain analysis showed decreased COP displacements, along the antero-posterior axis, when participants concurrently performed the most difficult mental arithmetic task. Frequency-domain and stabilogram-diffusion analyses further suggested these decreased COP displacements to be associated with an increased stiffness and a reduction of the exploratory behaviours in the short term, respectively.
Vincent Hervé
Vuillerme Nicolas
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