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Hum Mov Sci. 2011 Apr;30(2):341-51. doi: 10.1016/j.humov.2010.04.001. Epub 2010 Jun 17.

Locomotor body scheme.

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Department of Neuromotor Physiology, Santa Lucia Foundation, via Ardeatina 306, 00179 Rome, Italy.


The concept of body schema has been introduced and widely discussed in the literature to explain various clinical observations and distortions in the body and space representation. Here we address the role of body schema related information in multi-joint limb motion. The processing of proprioceptive information may differ significantly in static and dynamic conditions since in the latter case the control system may employ specific dynamic rules and constraints. Accordingly, the perception of movement, e.g., estimation of step length and walking distance, may rely on a priori knowledge about intrinsic dynamics of limb segment motion and inherent relationships between gait parameters and body proportions. The findings are discussed in the general framework of space and body movement representation and suggest the existence of a dynamic locomotor body schema used for controlling step length and path estimation.

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