Efeito da neuromodulação na ilusão da mão de borracha

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dc.contributor.advisorBoggio, Paulo Sérgio
dc.contributor.advisor1Latteshttp://lattes.cnpq.br/0659408656635728por
dc.contributor.authorDall'Agnol, Patricia Aparecida
dc.creator.Latteshttp://lattes.cnpq.br/2654068226885695por
dc.date.accessioned2017-02-01T20:03:08Z
dc.date.accessioned2020-05-28T18:09:20Z
dc.date.available2020-05-28T18:09:20Z
dc.date.issued2016-02-16
dc.description.abstractThe Rubber Hand Illusion (RHI) is generated by the conflict between synchronized visual and tactile stimuli delivered at the same time in the participant’s hand, occluded from the vision, and in a visible rubber prosthesis. Such conflict generates the sensation of incorporation of the extra limb in the participant. This illusion enable evaluate body awareness and how we perceive our body and single parts of it. Neuroimaging studies show that during the RHI the main cortical areas activated are the Premotor Cortex (PMC) and the Posterial Parietal Cortex (PPC). The knowledge of this areas playing an important role of multisensory integration that underlies the generation of the illusion and that the transcranial direct current stimulation (tDCS) technique has the ability of interfere on cortical activity, this study aimed to investigate possible neuromodulatory effects during the perception of the RHI. Specifically, we investigated effects of tDCS over PMC and PPC over i) time to perceive the RHI, ii) proprioceptive shift and iii) intensity of the illusion, measured via questionary. We evaluated 36 volunteers divided in 2 groups. The group 1 received tDCS over the PMC and the group 2 received tDCS over the PPC. The applied montages to both groups were: i anodal current at right hemisphere and cathodal current at left hemisphere; ii. anodal current at left hemisphere and cathodal current at right hemisphere; and iii. Sham condition.We verify that when tDCS was applied over the PMC using anodal current on the right hemisphere and cathodal current on the left hemisphere there is a significant effect on the proprioceptive shift task. Specifically, the volunteers had a greater shift towards the extra limb when compared to sham condition. However we found no effects for the opposite montage. Regarding the application of tDCS over PPC, we observed that the montage of anodal current on the right hemisphere and cathodal current on the left hemisphere promotes significant effects over the time taken to perceive the RHI. Specifically, this stimulation results in faster appropriation of the extra limb when compared to the opposite montage and to sham conditions. Finally, no effects of tDCS were found at the questionary evaluation in none of the groups. Thus, the study demonstrated that application of anodal right and cathodal left tDCS, in both of the studied areas promotes an increased perception of the RHI. In conclusion, this studiy increases the knowledge of the role of PMC and PPC in the integration of visual and tactile stimuli during the RHI, thus increasing knowledge about the aspects of body ownership. Besided it signals the possibility of tDCS as na useful tool for studies in this área and following from clinical application.eng
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superiorpor
dc.formatapplication/pdf*
dc.identifier.citationDALL’AGNOL, Patricia Aparecida. Efeito da neuromodulação na ilusão da mão de borracha. 2016. 83 f. Tese (Distúrbios do Desenvolvimento) - Universidade Presbiteriana Mackenzie, São Paulo.por
dc.identifier.urihttp://dspace.mackenzie.br/handle/10899/24537
dc.keywordsrubber hand illusioneng
dc.keywordstranscranial direct-current stimulationeng
dc.keywordspremotor cortexeng
dc.keywordsposterior parietal cortexeng
dc.languageporpor
dc.publisherUniversidade Presbiteriana Mackenziepor
dc.rightsAcesso Abertopor
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectilusão da mão de borrachapor
dc.subjectestimulação transcraniana por corrente contínuapor
dc.subjectcórtex pré-motorpor
dc.subjectcórtex parietal posteriorpor
dc.subject.cnpqCNPQ::CIENCIAS DA SAUDE::FISIOTERAPIA E TERAPIA OCUPACIONALpor
dc.thumbnail.urlhttp://tede.mackenzie.br/jspui/retrieve/12859/Patricia%20Aparecida%20Dall%27Agnol.pdf.jpg*
dc.titleEfeito da neuromodulação na ilusão da mão de borrachapor
dc.typeTesepor
local.contributor.board1Osório, Ana Alexandra Caldas
local.contributor.board1Latteshttp://lattes.cnpq.br/9011606474221997por
local.contributor.board2Macedo, Elizeu Coutinho de
local.contributor.board2Latteshttp://lattes.cnpq.br/0683719309513445por
local.contributor.board3Silva, Kátia Karina do Monte
local.contributor.board3Latteshttp://lattes.cnpq.br/1081515399161086por
local.contributor.board4Simis, Marcel
local.contributor.board4Latteshttp://lattes.cnpq.br/9111912082588964por
local.publisher.countryBrasilpor
local.publisher.departmentCentro de Ciências Biológicas e da Saúde (CCBS)por
local.publisher.initialsUPMpor
local.publisher.programDistúrbios do Desenvolvimentopor
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