Abstract：
:We introduce a method for quantification of movement sway--spontaneous migrations of the center of pressure (COP) during its voluntary shifts. Subjects stood on a force platform or on a board with a narrow support surface ("unstable board") and performed voluntary cyclic shifts of the COP at different frequencies. Movement sway was typically higher than postural sway; sway in the mediolateral direction was particularly increased. Movement sway showed a drop with the frequency of voluntary COP shifts. During standing on the unstable board, postural sway increased while movement sway decreased. The effects of task parameters were stronger on the sway component in the direction of the voluntary COP shift than in the orthogonal direction. We interpret changes in movement sway with task parameters as partly resulting from modulation of the search function of sway during voluntary COP shifts.
journal_name
Exp Brain Resjournal_title
Experimental brain researchauthors
Latash ML,Ferreira SS,Wieczorek SA,Duarte Mdoi
10.1007/s00221-003-1419-3keywords:
subject
Has Abstractpub_date
2003-06-01 00:00:00pages
314-24issue
3eissn
0014-4819issn
1432-1106journal_volume
150pub_type
杂志文章abstract：:Excess thyroid hormone at an early stage of development produces marked neurochemical and morphological alterations in the rat hippocampal formation. In order to better understand the functional significance of these changes, we tested adult rats treated neonatally with triiodothyronine (T3), and their control litter ...
journal_title：Experimental brain research
pub_type： 杂志文章
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journal_title：Experimental brain research
pub_type： 临床试验,杂志文章,随机对照试验
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journal_title：Experimental brain research
pub_type： 杂志文章
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