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In sync or not in sync? Illusory body ownership in autism spectrum disorder / Silvia GUERRA in Research in Autism Spectrum Disorders, 41-42 (September 2017)
[article]
Titre : In sync or not in sync? Illusory body ownership in autism spectrum disorder Type de document : Texte imprimé et/ou numérique Auteurs : Silvia GUERRA, Auteur ; Andrea SPOTO, Auteur ; Valentina PARMA, Auteur ; Elisa STRAULINO, Auteur ; Umberto CASTIELLO, Auteur Article en page(s) : p.1-7 Langues : Anglais (eng) Mots-clés : Autism spectrum disorders Body ownership Numbness illusion Multisensory temporal integration Tactile sensory processing Index. décimale : PER Périodiques Résumé : A fundamental aspect of self-consciousness is body ownership, which refers to the experience that our body and its parts belong to us and it is distinct from those of other persons. Body ownership depends on the integration of different sensory stimulations and it is crucial for the development of functional motor and social abilities, which are compromised in individuals with autism spectrum disorder (ASD). Here we examined the multisensory nature of body ownership in individuals with ASD by using a procedure based on tactile conflicts, namely the numbness illusion (NI). Method We induced an illusory feeling of numbness and ownership for another person’s finger by asking participants to hold their palm against another person’s palm and to stroke the two joined index fingers with the index and thumb of their other hand. Results As expected, when the agent self-strokes their finger, healthy participants do not perceive the NI if the stroking is performed asynchronously. Conversely, in individuals with ASD the illusion occurred with both synchronous and asynchronous self-stroking. Conclusions We contend that individuals with ASD are more vulnerable than controls to this illusory tactile experience and we discuss the findings in light of impaired perception of the temporal relationships between tactile and proprioceptive inputs. En ligne : https://doi.org/10.1016/j.rasd.2017.07.003 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=321
in Research in Autism Spectrum Disorders > 41-42 (September 2017) . - p.1-7[article] In sync or not in sync? Illusory body ownership in autism spectrum disorder [Texte imprimé et/ou numérique] / Silvia GUERRA, Auteur ; Andrea SPOTO, Auteur ; Valentina PARMA, Auteur ; Elisa STRAULINO, Auteur ; Umberto CASTIELLO, Auteur . - p.1-7.
Langues : Anglais (eng)
in Research in Autism Spectrum Disorders > 41-42 (September 2017) . - p.1-7
Mots-clés : Autism spectrum disorders Body ownership Numbness illusion Multisensory temporal integration Tactile sensory processing Index. décimale : PER Périodiques Résumé : A fundamental aspect of self-consciousness is body ownership, which refers to the experience that our body and its parts belong to us and it is distinct from those of other persons. Body ownership depends on the integration of different sensory stimulations and it is crucial for the development of functional motor and social abilities, which are compromised in individuals with autism spectrum disorder (ASD). Here we examined the multisensory nature of body ownership in individuals with ASD by using a procedure based on tactile conflicts, namely the numbness illusion (NI). Method We induced an illusory feeling of numbness and ownership for another person’s finger by asking participants to hold their palm against another person’s palm and to stroke the two joined index fingers with the index and thumb of their other hand. Results As expected, when the agent self-strokes their finger, healthy participants do not perceive the NI if the stroking is performed asynchronously. Conversely, in individuals with ASD the illusion occurred with both synchronous and asynchronous self-stroking. Conclusions We contend that individuals with ASD are more vulnerable than controls to this illusory tactile experience and we discuss the findings in light of impaired perception of the temporal relationships between tactile and proprioceptive inputs. En ligne : https://doi.org/10.1016/j.rasd.2017.07.003 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=321 Monochannel Preference in Autism Spectrum Conditions Revealed by a Non-Visual Variant of Rubber Hand Illusion / Mattia GALIGANI in Journal of Autism and Developmental Disorders, 52-10 (October 2022)
[article]
Titre : Monochannel Preference in Autism Spectrum Conditions Revealed by a Non-Visual Variant of Rubber Hand Illusion Type de document : Texte imprimé et/ou numérique Auteurs : Mattia GALIGANI, Auteur ; Carlotta FOSSATARO, Auteur ; Patrizia GINDRI, Auteur ; Massimiliano CONSON, Auteur ; Francesca GARBARINI, Auteur Article en page(s) : p.4252-4260 Langues : Anglais (eng) Mots-clés : Autism spectrum conditions Multisensory integration Rubber hand illusion Touch bOdy ownership Index. décimale : PER Périodiques Résumé : Individuals with autism spectrum conditions (ASC) are less susceptible to multisensory delusions, such as rubber hand illusion (RHI). Here, we investigate whether a monochannel variant of RHI is more effective in inducing an illusory feeling of ownership in ASC. To this aim, we exploit a non-visual variant of the RHI that, excluding vision, leverages only on the somatosensory channel. While the visual-tactile RHI does not alter the perceived hand position in ASC individuals, the tacto-tactile RHI effectively modulates proprioception to a similar extent as that found in typical development individuals. These findings suggest a more effective integration of multiple inputs originating from the same sensory channel in ASC, revealing a monochannel preference in this population. En ligne : http://dx.doi.org/10.1007/s10803-021-05299-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=486
in Journal of Autism and Developmental Disorders > 52-10 (October 2022) . - p.4252-4260[article] Monochannel Preference in Autism Spectrum Conditions Revealed by a Non-Visual Variant of Rubber Hand Illusion [Texte imprimé et/ou numérique] / Mattia GALIGANI, Auteur ; Carlotta FOSSATARO, Auteur ; Patrizia GINDRI, Auteur ; Massimiliano CONSON, Auteur ; Francesca GARBARINI, Auteur . - p.4252-4260.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 52-10 (October 2022) . - p.4252-4260
Mots-clés : Autism spectrum conditions Multisensory integration Rubber hand illusion Touch bOdy ownership Index. décimale : PER Périodiques Résumé : Individuals with autism spectrum conditions (ASC) are less susceptible to multisensory delusions, such as rubber hand illusion (RHI). Here, we investigate whether a monochannel variant of RHI is more effective in inducing an illusory feeling of ownership in ASC. To this aim, we exploit a non-visual variant of the RHI that, excluding vision, leverages only on the somatosensory channel. While the visual-tactile RHI does not alter the perceived hand position in ASC individuals, the tacto-tactile RHI effectively modulates proprioception to a similar extent as that found in typical development individuals. These findings suggest a more effective integration of multiple inputs originating from the same sensory channel in ASC, revealing a monochannel preference in this population. En ligne : http://dx.doi.org/10.1007/s10803-021-05299-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=486