Multisensory remission of somatoparaphrenic delusion: My hand is back!

Nadia Bolognini, Roberta Ronchi, Carlotta Casati, Paola Fortis, Giuseppe Vallar

Research output: Contribution to journalArticlepeer-review


This study investigates whether the rubber hand illusion (RHI) can induce a remission of somatoparaphrenia, a somatic delusion usually following righthemisphere damage, which typically manifests as a defective sense of ownership of one's contralesional body parts. First, we show that patients with somatoparaphrenia can experience a reliable RHI, exhibiting illusory effects similar to those reported by healthy participants. Moreover, synchronous touches applied to the patients' visible disowned left hand (rather than to the rubber hand), and to their right invisible unimpaired hand, induce an immediate self-attribution of the disowned hand, without affecting other sensorimotor or attentional disorders. The higher-level representation of the body concerned with ownership, deranged as a somatic delusion in patients with somatoparaphrenia, is penetrable, and can be restored by multisensory stimulations.

Original languageEnglish
Pages (from-to)216-225
Number of pages10
JournalNeurology: Clinical Practice
Issue number3
Publication statusPublished - 2014

ASJC Scopus subject areas

  • Clinical Neurology


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