IRIS – Institutional Research Information System
IRIS è il sistema di gestione della ricerca dell’Università degli Studi di Milano-Bicocca.Il repository BOA è il modulo del sistema dedicato alla raccolta e alla disseminazione della produzione scientifica di Ateneo. Le pubblicazioni sono ricercabili per parola chiave attraverso il box nella barra orizzontale in alto oppure, mediante il pulsante Sfoglia, per "Afferenza", "Autore", "Titolo", "Tipologia" o "Settore scientifico-disciplinare".
IRIS contiene inoltre alcuni moduli dedicati alla registrazione dei progetti e dei contratti, e alla reportistica avanzata per le attività di valutazione della ricerca
EnglishObjective: The alien hand syndrome (AHS) is a rare neuropsychological disorder characterized by involuntary,yet purposeful, hand movements. Patients with the AHS typically complain about a loss of agencyassociated with a feeling of estrangement for actions performed by the affected limb. The present studyexplores the integrity of the body representation in AHS, focusing on 2 main processes: multisensoryintegration and visual self-recognition of body parts. Three patients affected by AHS following a righthemispherestroke, with clinical symptoms akin to the posterior variant of AHS, were tested and theirperformance was compared with that of 18 age-matched healthy controls. Method: AHS patients and controlsunderwent 2 experimental tasks: a same-different visual matching task for body postures, which assessed theability of using your own body schema for encoding others' body postural changes (Experiment 1), and anexplicit self-hand recognition task, which assessed the ability to visually recognize your own hands (Experiment2). Results: As compared to controls, all AHS patients were unable to access a reliable multisensoryrepresentation of their alien hand and use it for decoding others' postural changes; however, they could relyon an efficient multisensory representation of their intact (ipsilesional) hand. Two AHS patients also presentedwith a specific impairment in the visual self-recognition of their alien hand, but normal recognition of theirintact hand. Conclusion: This evidence suggests that the AHS following a right-hemisphere stroke mayinvolve a disruption of the multisensory representation of the alien limb; instead, self-hand recognitionmechanisms may be spared.
Olgiati, E., Maravita, A., Spandri, V., Casati, R., Ferraro, F., Tedesco, L., et al. (2017). Body schema and corporeal self-recognition in the alien hand syndrome. NEUROPSYCHOLOGY, 31(5), 575-584.
| Citazione: | Olgiati, E., Maravita, A., Spandri, V., Casati, R., Ferraro, F., Tedesco, L., et al. (2017). Body schema and corporeal self-recognition in the alien hand syndrome. NEUROPSYCHOLOGY, 31(5), 575-584. |
| Tipo: | Articolo in rivista - Articolo scientifico |
| Carattere della pubblicazione: | Scientifica |
| Presenza di un coautore afferente ad Istituzioni straniere: | No |
| Titolo: | Body schema and corporeal self-recognition in the alien hand syndrome |
| Autori: | Olgiati, E; Maravita, A; Spandri, V; Casati, R; Ferraro, F; Tedesco, L; Agostoni, E; Bolognini, N |
| Autori: | |
| Data di pubblicazione: | 2017 |
| Lingua: | English |
| Rivista: | NEUROPSYCHOLOGY |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1037/neu0000359 |
| Appare nelle tipologie: | 01 - Articolo su rivista |
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