Proceedings of The Physiological Society

University College London December 2005 (2006) Proc Physiol Soc 1, C3

Oral Communications

Motor commands can produce sensations of displacement of the hand in the absence of peripheral feedback

Gandevia, Simon; Smith, Janette; Proske, Uwe; Taylor, Janet;

1. Prince of Wales Medical Research Institute, Sydney, NSW, Australia. 2. Department of Physiology, Monash University, Melbourne, VIC, Australia.


The role of inflow and outflow signals in judgments of limb position has been debated for over a century. A previous study suggested that illusions of movement do not accompany the motor commands used in attempts to move a paralysed limb (McCloskey & Torda, 1975; for review see Gandevia, 1987). We used ischaemic paralysis of the arm to generate a phantom hand and found that its perceived position changed with attempted contractions. Six na

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