Nonvisual multisensory impairment of body perception in anorexia nervosa: a systematic review of neuropsychological studies

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dc.contributor.authorGaudio, Santinoen_ZA
dc.contributor.authorBrooks, Samantha Janeen_ZA
dc.contributor.authorRiva, Giuseppeen_ZA
dc.date.accessioned2015-11-16T04:13:21Z
dc.date.available2015-11-16T04:13:21Z
dc.date.issued2014en_ZA
dc.description.abstractBACKGROUND: Body image distortion is a central symptom of Anorexia Nervosa (AN). Even if corporeal awareness is multisensory majority of AN studies mainly investigated visual misperception. We systematically reviewed AN studies that have investigated different nonvisual sensory inputs using an integrative multisensory approach to body perception. We also discussed the findings in the light of AN neuroimaging evidence. METHODS: PubMed and PsycINFO were searched until March, 2014. To be included in the review, studies were mainly required to: investigate a sample of patients with current or past AN and a control group and use tasks that directly elicited one or more nonvisual sensory domains. RESULTS: Thirteen studies were included. They studied a total of 223 people with current or past AN and 273 control subjects. Overall, results show impairment in tactile and proprioceptive domains of body perception in AN patients. Interoception and multisensory integration have been poorly explored directly in AN patients. A limitation of this review is the relatively small amount of literature available. CONCLUSIONS: Our results showed that AN patients had a multisensory impairment of body perception that goes beyond visual misperception and involves tactile and proprioceptive sensory components. Furthermore, impairment of tactile and proprioceptive components may be associated with parietal cortex alterations in AN patients. Interoception and multisensory integration have been weakly explored directly. Further research, using multisensory approaches as well as neuroimaging techniques, is needed to better define the complexity of body image distortion in AN. Key FINDINGS: The review suggests an altered capacity of AN patients in processing and integration of bodily signals: body parts are experienced as dissociated from their holistic and perceptive dimensions. Specifically, it is likely that not only perception but memory, and in particular sensorimotor/proprioceptive memory, probably shapes bodily experience in patients with AN.en_ZA
dc.identifier.apacitationGaudio, S., Brooks, S. J., & Riva, G. (2014). Nonvisual multisensory impairment of body perception in anorexia nervosa: a systematic review of neuropsychological studies. <i>PLoS One</i>, http://hdl.handle.net/11427/15029en_ZA
dc.identifier.chicagocitationGaudio, Santino, Samantha Jane Brooks, and Giuseppe Riva "Nonvisual multisensory impairment of body perception in anorexia nervosa: a systematic review of neuropsychological studies." <i>PLoS One</i> (2014) http://hdl.handle.net/11427/15029en_ZA
dc.identifier.citationGaudio, S., Brooks, S. J., & Riva, G. (2013). Nonvisual multisensory impairment of body perception in anorexia nervosa: a systematic review of neuropsychological studies. PloS one, 9(10), e110087. doi:10.1371/journal.pone.0110087en_ZA
dc.identifier.ris TY - Journal Article AU - Gaudio, Santino AU - Brooks, Samantha Jane AU - Riva, Giuseppe AB - BACKGROUND: Body image distortion is a central symptom of Anorexia Nervosa (AN). Even if corporeal awareness is multisensory majority of AN studies mainly investigated visual misperception. We systematically reviewed AN studies that have investigated different nonvisual sensory inputs using an integrative multisensory approach to body perception. We also discussed the findings in the light of AN neuroimaging evidence. METHODS: PubMed and PsycINFO were searched until March, 2014. To be included in the review, studies were mainly required to: investigate a sample of patients with current or past AN and a control group and use tasks that directly elicited one or more nonvisual sensory domains. RESULTS: Thirteen studies were included. They studied a total of 223 people with current or past AN and 273 control subjects. Overall, results show impairment in tactile and proprioceptive domains of body perception in AN patients. Interoception and multisensory integration have been poorly explored directly in AN patients. A limitation of this review is the relatively small amount of literature available. CONCLUSIONS: Our results showed that AN patients had a multisensory impairment of body perception that goes beyond visual misperception and involves tactile and proprioceptive sensory components. Furthermore, impairment of tactile and proprioceptive components may be associated with parietal cortex alterations in AN patients. Interoception and multisensory integration have been weakly explored directly. Further research, using multisensory approaches as well as neuroimaging techniques, is needed to better define the complexity of body image distortion in AN. Key FINDINGS: The review suggests an altered capacity of AN patients in processing and integration of bodily signals: body parts are experienced as dissociated from their holistic and perceptive dimensions. Specifically, it is likely that not only perception but memory, and in particular sensorimotor/proprioceptive memory, probably shapes bodily experience in patients with AN. DA - 2014 DB - OpenUCT DO - 10.1371/journal.pone.0110087 DP - University of Cape Town J1 - PLoS One LK - https://open.uct.ac.za PB - University of Cape Town PY - 2014 T1 - Nonvisual multisensory impairment of body perception in anorexia nervosa: a systematic review of neuropsychological studies TI - Nonvisual multisensory impairment of body perception in anorexia nervosa: a systematic review of neuropsychological studies UR - http://hdl.handle.net/11427/15029 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/15029
dc.identifier.urihttp://dx.doi.org/10.1371/journal.pone.0110087
dc.identifier.vancouvercitationGaudio S, Brooks SJ, Riva G. Nonvisual multisensory impairment of body perception in anorexia nervosa: a systematic review of neuropsychological studies. PLoS One. 2014; http://hdl.handle.net/11427/15029.en_ZA
dc.language.isoengen_ZA
dc.publisherPublic Library of Scienceen_ZA
dc.publisher.departmentDepartment of Psychiatry and Mental Healthen_ZA
dc.publisher.facultyFaculty of Health Sciencesen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.rightsThis is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.en_ZA
dc.rights.holder© 2014 Gaudio et alen_ZA
dc.rights.urihttp://creativecommons.org/licenses/by/4.0en_ZA
dc.sourcePLoS Oneen_ZA
dc.source.urihttp://journals.plos.org/plosoneen_ZA
dc.subject.otherSensory perceptionen_ZA
dc.subject.otherAnorexia nervosaen_ZA
dc.subject.otherVisionen_ZA
dc.subject.otherTactile sensationen_ZA
dc.subject.otherVisual impairmentsen_ZA
dc.subject.otherEating disordersen_ZA
dc.subject.otherNeuroimagingen_ZA
dc.subject.otherPain sensationen_ZA
dc.titleNonvisual multisensory impairment of body perception in anorexia nervosa: a systematic review of neuropsychological studiesen_ZA
dc.typeJournal Articleen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceArticleen_ZA
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