COVER ILLUSTRATION. Haemodynamic activation (measured using fMRI) in the brain of E.P., a right-handed stroke patient, while she perceives a supernumerary `ghost' left arm, contrasted with periods when the ghost arm was not present. A single cluster in the right supplementary motor area (SMA) displayed a significant pattern of signal change during the presence of the ghost arm. Activation in motor regions of the brain may be sufficient to cause somatic phantom perceptions like E.P.'s. From `Whose arm is it anyway? An fMRI case study of supernumerary phantom limb' by D. J. McGonigle et al., pp. 1265–1274.
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