A novel finger illusion reveals reduced weighting of bimanual hand cortical representations in people with complex regional pain syndrome
Complex regional pain syndrome (CRPS) is characterised by excessive pain, usually in a peripheral limb such as the hand, and affects sensation, movement and function.32 Quantified deficits include higher thresholds for two-point discrimination in the index finger,45 impaired hand size estimation,35,44 finger misidentification,14,33 tactile processing disturbances;28 errors in bilateral limb positioning,30 fine motor26 and motor imagery performance.34,49,50 These deficits implicate distortions in body representation53 and are corroborated by evidence of cortical re-organisation in CRPS,9,10 although much remains unclear.
Source: The Journal of Pain - Category: Materials Science Authors: Audrey P Wang, Annie A Butler, John D Valentine, Caroline D Rae, James McAuley, Simon C Gandevia, G Lorimer Moseley Tags: Original Reports Source Type: research